Hopper

Own and develop realtime voice and chat systems across frontend and backend, ensuring system reliability and scalability. | 6+ years senior software engineering with full-stack skills, realtime systems experience, backend in Scala/Python, frontend in React/TypeScript, cloud infrastructure knowledge, and strong communication. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like - Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets - Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP - Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks - Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points - Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance - Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives - Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has - 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range - Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products - Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS - A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems - Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships - An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans - The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations - Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime - Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit - Bonus points for experience building customer service, CRM, contact center, or workflow automation tools - Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us - Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages - Unlimited PTO - Carrot Cash travel stipend - Access to co-working space on demand through FlexDesk and a work-from-home stipend - Please ask us about our very generous parental leave, much above industry standards - Entrepreneurial culture where pushing limits and taking risks is everyday business - Open communication with management and company leadership - Small, dynamic teams, massive impact - 100% employer-paid Medical, Dental and Vision coverage for employees - Access to Disability and Life insurance - Health Reimbursement Account (HRA) - DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: - Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. - Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. - Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. - Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! This role utilizes automated decision-making systems to assess candidate suitability. Under local regulations, you have the right to understand the principal factors used in this assessment, request a correction of your data, or request a human review of any automated decision. To exercise these rights, please contact privacy@hopper.com Compensation Range: $200K - $250K

Own and build realtime voice and chat systems across frontend, backend, and cloud infrastructure for a travel AI assistant. | 6+ years senior full-stack engineering with realtime systems, React/TypeScript frontend, Scala/Python backend, cloud infrastructure, and strong ownership of production systems. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Own and develop realtime and voice full stack features including front-end, backend, and cloud infrastructure with senior-level ownership and mentoring. | 6+ years senior software engineering with full-stack experience, realtime systems, React/TypeScript front-end, backend in Scala/Python, cloud infrastructure, API design, observability, and strong communication. | About the Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What would your day-to-day look like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks and benefits of working with us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! #LI-Remote This role utilizes automated decision-making systems to assess candidate suitability. Under local regulations, you have the right to understand the principal factors used in this assessment, request a correction of your data, or request a human review of any automated decision. To exercise these rights, please contact privacy@hopper.com

Own and develop realtime voice and web chat features across frontend and backend systems with cloud infrastructure and observability. | 6+ years senior software engineering with full-stack ownership, realtime systems experience, React/TypeScript frontend, Scala or Python backend, cloud infrastructure, and strong communication skills. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Own and develop realtime and voice full-stack features including frontend, backend, and cloud infrastructure with senior-level ownership and mentoring. | 6+ years senior software engineering experience with full-stack skills, realtime systems, cloud infrastructure, API design, and strong communication. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Own and build realtime and voice systems across front-end, backend, and cloud infrastructure with senior-level ownership and mentoring. | 6+ years senior software engineering with full-stack range, realtime systems experience, cloud infrastructure knowledge, and strong communication. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Develop and maintain realtime voice and chat customer experience platform features across front-end, backend, and cloud infrastructure. | Senior full-stack engineer with 6+ years experience, strong front-end and backend skills, realtime systems and voice application experience, and cloud infrastructure knowledge. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Own and develop realtime and voice systems including frontend, backend, and cloud infrastructure for a customer experience platform. | 6+ years senior full-stack experience with realtime systems, voice applications, React/TypeScript frontend, Scala/Python backend, and cloud infrastructure expertise. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Own and develop realtime and voice full stack features including frontend, backend, and cloud infrastructure for a customer experience platform. | 6+ years senior software engineering experience with full-stack ownership, realtime systems, modern frontend and backend skills, cloud infrastructure experience, and strong communication. | About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What Would Your Day-to-day Look Like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks And Benefits Of Working With Us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Own and develop realtime and voice full-stack features including frontend, backend, and cloud infrastructure for a customer experience platform. | 6+ years senior software engineering with full-stack ownership, realtime systems experience, strong React/TypeScript frontend and Scala/Python backend skills, cloud infrastructure knowledge, and operational mindset. | About the Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code to a traveler's phone call is short. What would your day-to-day look like • Own the voice channel end to end, including telephony and CPaaS integrations (e.g., Twilio, Amazon Connect), streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency and quality budgets • Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP • Design for multi-tenant scale, with one codebase serving many partners through configuration rather than forks • Build the safety and compliance plumbing enterprise partners audit, including guardrails, content filtering, and PII redaction integration points • Keep revenue-critical deployments healthy through observability, alerting, incident response, and SLA performance • Build the platform capabilities forward-deployed engineers configure for partner telephony integrations and go-lives • Raise the engineering bar through code review, architecture reviews, and mentoring An ideal candidate has • 6+ years of software engineering experience, with senior-level ownership of production systems and genuine full-stack range • Hands-on realtime systems experience, such as voice applications, WebRTC/SIP, streaming media, or comparable low-latency products • Strength in a modern front end (React, TypeScript) and depth on the backend (Scala or another JVM language, and/or Python), along with cloud infrastructure experience on GCP or AWS • A track record designing, building, and maintaining RESTful APIs, microservices, or event-driven systems • Familiarity using AI coding tools as a standard part of their workflow, with the judgment to review, correct, and own everything that ships • An operable-systems mindset, covering SLAs, observability, on-call rotations, and rollback plans • The ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively, backed by strong communication across product, design, and operations • Bonus points for conversational AI or LLM orchestration experience, including speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime • Bonus points for working knowledge of cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit • Bonus points for experience building customer service, CRM, contact center, or workflow automation tools • Familiarity with travel industry technologies (PSS/GDS, hotel PMS/CRS) is a plus, though not required Perks and benefits of working with us • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages • Unlimited PTO • Carrot Cash travel stipend • Access to co-working space on demand through FlexDesk and a work-from-home stipend • Please ask us about our very generous parental leave, much above industry standards • Entrepreneurial culture where pushing limits and taking risks is everyday business • Open communication with management and company leadership • Small, dynamic teams, massive impact • 100% employer-paid Medical, Dental and Vision coverage for employees • Access to Disability and Life insurance • Health Reimbursement Account (HRA) • DCA/FSA and access to a 401k plan About Hopper At Hopper, we are on a mission to become the leading travel platform globally, powering Hopper's mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions, helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers, with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we've grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world's largest brands. Through HTS, our B2B division, the company supercharges its partners' direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company's recent growth: • Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS' channels every year. • Our fintech products, including Cancel for Any Reason and Flight Disruption Assistance, have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. • Almost 30% of our app customers purchase at least one fintech product when making a booking, and consumers are 1.6x more likely to repurchase if they add fintech to their booking versus if they booked just travel. • Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper's fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agency in North America and 70% of our app customers are Gen Z and millennial travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! #LI-Remote At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.

Lead backend development of scalable systems and orchestrate AI agents to improve feature delivery and codebase efficiency. | Staff-level engineer proficient in Scala and distributed systems with strong product thinking and AI-assisted development experience. | About the job Did you know Hopper's technology powers some of the largest travel portals in the world? Our Hopper Technology Solutions (HTS) platform drives travel purchases for major global brands — from banks to airlines to fintech leaders. This platform is a configurable, multi-tenant travel commerce engine, enabling partners to launch world-class hotel and travel booking experiences faster, with less custom engineering. The platform is built. What comes next is growth — and that's what this team owns. We have 410M cardholders across our banking partners and we've barely scratched the surface. The work is about making partner cards genuinely more competitive: connecting cardholder behavior to the right offers at the right time, giving partners real insight into what drives incremental spend, and building the intelligence layer that compounds across the network as we scale. We're moving Commerce from a travel vendor to a strategic card partner — and the engineering work is what makes that real. We're looking for a staff software engineer who builds great products and has figured out how to use AI to do it at a pace that wasn't possible a year ago. You're not using AI to auto-complete your code — you're orchestrating agents, building feedback loops, and shipping features end-to-end in a fraction of the time it used to take. You understand the strengths and weaknesses of LLMs, and you've developed the taste to know when to trust the output and when to intervene. Tech stack Backend: Scala, GCP services Frontend: React + TypeScript We value stack-agnostic thinking. If you've built great systems in Go, Python, Java, or anything else, and you pick things up fast — that's what matters. What your day-to-day would look like Identify and execute improvements to the codebase that make it easier for both humans and AI agents to move fast and ship safely. Work with a group of senior engineers in a low-process environment powered by trust and autonomy. Drive decisions and consensus asynchronously with thoughtful documentation and specs. Own features end-to-end — from the backend systems to the partner-facing surface. You'll primarily work on the backend, but expect to use AI tooling to move across the stack as needed. We care that you can ship a complete feature, not that you can write production-grade React from memory. Architect scalable solutions and foundational patterns that let us efficiently launch new partner experiences. Work directly with PMs and business partners to define and refine our roadmap. Your voice and technical vision matter. Collaborate with a diverse group of people, giving and receiving feedback for growth. An ideal candidate has A natural drive to fearlessly dive into an unknown codebase and deliver results fast. Strong product thinking — your conception of quality and architecture is anchored in the customer experience, not in technical elegance for its own sake. The ability to direct AI agents and automated workflows to build and maintain complex systems, and the judgment to know when to step in and when to let them run. Experience designing the guardrails and feedback loops that keep AI-assisted development productive and reliable. Experience with, or a mastery-level willingness to learn, distributed system development in Scala. The ability to articulate not just how you'd solve a problem, but why, and what tradeoffs you're accepting. Perks and Benefits of working with us Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages. Unlimited PTO. Carrot Cash travel stipend. Access to co-working space on demand through FlexDesk AND Work-from-home stipend. Please ask us about our very generous parental leave, much above industry standards!. Entrepreneurial culture where pushing limits and taking risks is everyday business. Open communication with management and company leadership. Small, dynamic teams = massive impact. 100% employer paid Medical, Dental and Vision coverage for employees. Access to Disability & Life insurance. Health Reimbursement Account (HRA). DCA/ FSA and access to 401k plan. More about Hopper At Hopper, we are on a mission to become the leading travel platform globally – powering Hopper’s mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions – helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. he Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers – with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we’ve grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world’s largest brands. Through HTS, our B2B division, the company supercharges its partners’ direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company’s recent growth: Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS’ channels every year. Our fintech products – including Cancel for Any Reason and Flight Disruption Assistance – have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. Almost 30% of our app customers purchase at least one fintech product when making a booking; and consumers are 1.6x more likely to repurchase if they add fintech to their booking vs if they booked just travel. Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper’s fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agencies in North America and 70% of our app customers are Gen-Z and millennials travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! This role utilizes automated decision-making systems to assess candidate suitability. Under local regulations, you have the right to understand the principal factors used in this assessment, request a correction of your data, or request a human review of any automated decision. To exercise these rights, please contact privacy@hopper.com. #LI-REMOTE

Design and evolve machine learning systems and automated training pipelines for real-time pricing engine while monitoring production systems and collaborating cross-functionally. | 5+ years experience in production ML systems or large-scale pricing platforms with proficiency in Python, Scala, SQL, and deep ML algorithm knowledge. | About the Team Hopper's Fintech Foundation team sits at the centre of the company's mission: reshaping how more than 100 million monthly active users experience travel. It owns the pricing engine that balances customer demand against financial risk across dozens of partners — including Capital One, Air Canada, and Spirit Airlines. As an ML engineer on this team, you will directly shape how Hopper prices ancillary products in real time and at scale. About the Role As a Software Engineer on the Fintech Foundation team, you will design, build, and evolve the machine learning systems that power Hopper's pricing engine. Your work will have direct impact on revenue, financial risk management, and the customer experience across the full partner portfolio. You will work closely with the Data Science, Engineering, and Product teams to deliver pricing solutions that are reliable, scalable, and oriented toward commercial outcomes. What would your day-to-day look like Design and implement automated, reusable training pipelines to ensure consistent, scalable model delivery across the partner portfolio Build ETL pipelines with thoughtful feature engineering to guarantee clean, reliable inputs for pricing models Develop and deploy real-time ML pricing solutions to production, owning the full path from model to live environment Monitor production systems for latency, drift, and training-serving skew, optimising continuously to maintain model integrity Run champion-challenger tests on pricing and product construction levers to surface improvements and respond to shifting market conditions Partner with data scientists, engineers, and product stakeholders to translate business needs into well-scoped technical solutions An ideal candidate has 5+ years of experience in a similar role, ideally within production ML systems or large-scale pricing platforms Proficiency in Python, Scala, and SQL, applied to production ML systems rather than exploratory work Experience in data modelling, software architecture, and distributed data processing frameworks at scale Deep understanding of ML algorithms and when to apply them in the context of pricing, demand forecasting, or similar commercial domains Strong analytical instincts and attention to detail, with a track record of catching issues before they reach production A product mindset that keeps the customer outcome in view, even when the work is deeply technical Clear, collaborative communication skills that hold up across data science, engineering, and business stakeholder audiences Perks and Benefits of working with us Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages. Unlimited PTO. Carrot Cash travel stipend. Access to co-working space on demand through FlexDesk AND Work-from-home stipend. Please ask us about our very generous parental leave, much above industry standards!. Entrepreneurial culture where pushing limits and taking risks is everyday business. Open communication with management and company leadership. Small, dynamic teams = massive impact. 100% employer paid Medical, Dental and Vision coverage for employees. Access to Disability & Life insurance. Health Reimbursement Account (HRA). DCA/ FSA and access to 401k plan. More about Hopper At Hopper, we are on a mission to become the leading travel platform globally – powering Hopper’s mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions – helping people travel better and save more on their trips. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. he Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers – with 70% of its users being Gen Z and millennials. While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we’ve grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world’s largest brands. Through HTS, our B2B division, the company supercharges its partners’ direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Here are just a few stats that demonstrate the company’s recent growth: Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS’ channels every year. Our fintech products – including Cancel for Any Reason and Flight Disruption Assistance – have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions. Almost 30% of our app customers purchase at least one fintech product when making a booking; and consumers are 1.6x more likely to repurchase if they add fintech to their booking vs if they booked just travel. Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business. Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper’s fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more. Hopper has been named the #1 most innovative company in travel by Fast Company Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agencies in North America and 70% of our app customers are Gen-Z and millennials travelers. Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials. Come take off with us! This role utilizes automated decision-making systems to assess candidate suitability. Under local regulations, you have the right to understand the principal factors used in this assessment, request a correction of your data, or request a human review of any automated decision. To exercise these rights, please contact privacy@hopper.com. #LI-REMOTE