Etsy

You would build, productionize, and evaluate large-scale ML systems for search, ads, or recommendations, including running experiments to measure product impact. | The role seeks senior-level ML engineering experience in production systems, expertise in areas such as retrieval or recommendations, strong programming and ML framework skills, and the ability to lead work from design through delivery. | Etsy is the global marketplace for unique and creative goods. We build, power, and evolve the tools and technologies that connect millions of entrepreneurs with millions of buyers around the world. As an Etsy employee, you will tackle unique, meaningful, and large-scale problems alongside passionate coworkers, all the while making a rewarding impact and Keeping Commerce Human. We believe exceptional companies are built by exceptional teams, and we're intentional about it. That means hiring great people, setting them up for success from day one, and giving them real reasons to grow their careers here. We invest in development that goes beyond promotions, and we foster the trust and relationships that help people do their best work together. What's the role? We're hiring Machine Learning Engineers at the Senior and Staff levels to join one of our Search and Discovery teams: Search Ads, Recommendations Ranking, or Search Retrieval. You will build user-centric ML systems for a two-sided marketplace with 90+ million buyers, 6+ million sellers, and hundreds of millions of unique, handmade, and vintage listings. We're looking for people who are product- and delivery-driven and passionate about applying ML innovations (ranking, retrieval, deep learning, reinforcement learning, LLMs, and more) to improve the Etsy buyer and seller experience. You'll own models end-to-end, from data and feature pipelines through training, evaluation, and production serving, and validate their impact through live A/B experiments on Etsy.com and the Etsy app. Team placement is based on your background, level, and interests, and will be discussed during the interview process. This is a full-time position reporting to the Engineering Manager of the team you join. What’s this team like at Etsy? We apply cutting-edge machine learning, deep learning, and information retrieval techniques to high-impact problems at Etsy scale. Depending on your experience, you may be considered for one of the following teams: ●Search Ads: Builds the ML systems behind our sponsored search product, including retrieval, ranking, ad allocation, and user engagement modeling. We ensure the right ads reach the right buyers, personalize the ad experience to each buyer's journey, and help sellers get the most from their advertising budgets, all on a pipeline that scales to our 90+ million buyers and sellers. ●Recommendations Ranking: Develops ML models that understand buyers, personalize, and rank recommendations across Etsy.com and the Etsy app. Work includes user modeling, personalized ranking, multi-objective optimization, intent and lifecycle prediction, and keeping feeds fresh and reactive to user actions, emerging trends, and seasonal shifts. ●Search Retrieval: Builds efficient, scalable, and intelligent retrieval systems that surface the most relevant listings from a catalog of over a hundred million unique items. We combine lexical matching, semantic retrieval, and hybrid models to power the first step inEtsy's search stack, using techniques such as dual-encoder models, vector similarity search, and query expansion. What does the day-to-day look like? ●Work cross-functionally with software engineers, applied scientists, data scientists, product managers, designers, and analytics partners, and communicate your ideas and model capabilities clearly to each. ●Apply the latest advances in machine learning and information retrieval to improve relevance, personalization, and buyer and seller engagement. ●Prototype, optimize, and productionize large-scale ML models, owning the path from data and feature pipelines through training, evaluation, serving, and monitoring. ●Design and run A/B experiments (online and offline) to validate the effectiveness, efficiency, latency, and buyer impact of ML models and pipelines. ●Investigate and resolve nuanced issues in model and system behavior, and measure and improve our products with product and analytics partners. ●Depending on your team, work on problems such as retrieval and ranking for sponsored search, ad allocation, user modeling, personalized ranking, multi-objective optimization, intent prediction, dual-encoder and hybrid retrieval, and large-scale indexing and serving. ●Of course, this is just a sample of the kinds of work this role will require! You should assume that your role will encompass other tasks, too, and that your job duties and responsibilities may change from time to time at Etsy's discretion, or otherwise applicable with local law. Qualities that will help you thrive in this role are: ●A track record of applying statistical and machine learning techniques to real-world problems. ●Expertise or experience in one or more of: information retrieval, search, recommendations, ads, natural language processing, deep learning, multi-modal learning, or reinforcement learning. ●Hands-on experience training, deploying, monitoring, debugging, and iterating on production ML systems in search, recommendation, and/or ads. ●Production experience building large-scale ML systems in Python, Java, Scala, or similar languages, with modern ML frameworks such as PyTorch or TensorFlow/TFX. ●The ability to write and manipulate data at large scale, and to write understandable, testable, maintainable code. ●The ability to create requirements and lead your team from design through delivery. ●A collaborative, empathetic approach, with clear and constructive communication across disciplines. ●Care about the implications of your work on end users. ●M.S. or Ph.D. in Computer Science or a related engineering field with at least two years of practical machine learning experience, or equivalent experience. Compensation & Benefits In addition to salary, you'll be eligible for an equity package, an annual performance bonus, and our competitive benefits that support you and your family. Base salary is determined by your location, skills, and experience. Etsy uses two geographic pay zones to reflect the labor markets where we compete for talent: one called Geo-1, covering the New York City metropolitan area, San Francisco Bay Area, and Seattle metropolitan area, and one called Geo-2, covering all other U.S. locations. Salary ranges for this role vary by zone and are listed below. Location We prioritize candidates based within commutable distance of Etsy’s Brooklyn Office. Depending on proximity, we ask team members to come in once or twice per week. Remote candidates outside commutable distance may be considered on a case-by-case basis, with the expectation of occasional travel to the office. Learn more details about our work modes and workplace safety policies here. Salary Range: • Geo-1: 182,000.00 - 246,000.00 USD Annual
• Geo-2: 164,000.00 - 222,000.00 USD Annual

What's Next If you're interested in joining the team at Etsy, please share your resume with us and feel free to include a cover letter if you'd like. As we hope you've seen already, Etsy is a place that values individuality and variety. We don't want you to be like everyone else -- we want you to be like you! So tell us what you're all about. Our Promise At Etsy, we believe that a diverse, equitable, and inclusive workplace furthers relevance, resilience, and longevity. We encourage people from all backgrounds, ages, abilities, and experiences to apply. Etsy is proud to be an equal opportunity workplace and is committed to equal employment opportunity regardless of race, color, ethnicity, ancestry, national origin, religion or creed, sex, pregnancy (including childbirth and related medical conditions), gender, gender identity or expression, sexual orientation, age, citizenship or immigration status, marital or familial status, physical or mental disability, medical condition, genetic information, military or veteran status**, or any other characteristic protected by applicable federal, state, or local law**. If, due to a disability, you need an accommodation during any part of the interview or hiring process, please let your recruiter know and we will work with you to meet your needs. While Etsy supports visa sponsorship, sponsorship opportunities may be limited to certain roles and skills.

Build and maintain OpenAPI platform, improve developer experience and system stability, provide technical leadership and mentoring. | Extensive PHP and REST API experience, observability tools knowledge, and ability to work with AI agentic tooling. | Etsy is the global marketplace for unique and creative goods. We build, power, and evolve the tools and technologies that connect millions of entrepreneurs with millions of buyers around the world. As an Etsy employee, you will tackle unique, meaningful, and large-scale problems alongside passionate coworkers, all the while making a rewarding impact and Keeping Commerce Human. We believe exceptional companies are built by exceptional teams, and we're intentional about it. That means hiring great people, setting them up for success from day one, and giving them real reasons to grow their careers here. We invest in development that goes beyond promotions, and we foster the trust and relationships that help people do their best work together. What’s the Role? The OpenAPI team works on Etsy’s public API provided for sellers and 3rd party developers. We build and maintain technical capabilities to enable our users to integrate with our API and build apps to extend Etsy tooling. We also work closely with various product teams at Etsy when they build new features on our team’s platform. We are looking for a backend engineer to join our team where you will collaborate closely with a dedicated team of backend engineers, a product manager, and an engineering manager. You will work on a variety of back-end projects to improve the developer experience and stability of OpenAPI, such as system performance optimization, agentic tooling, security enhancements, testing functionality, and webhooks. You will also provide guidance to internal teams at Etsy to assist them in rolling out new features on OpenAPI and managing breaking changes. As a staff engineer, you will partner with team leads to set the technical direction of the team. This will involve keeping tabs on recurring pain points on our platform, potential opportunities that arise across the company, and industry trends. Based on this expertise, you will help decide which tracks of work our team pursues. You will be responsible for the design of larger projects and will mentor junior teammates on designing smaller projects. This is a full time role reporting to the Senior Engineering Manager. What’s this team like at Etsy? We own the OpenAPI platform, which is one of several platforms at Etsy that seller-facing products are built on and the only platform that serves external developers. Other teams at Etsy own specific products across platforms, which means that they execute on building new features in OpenAPI, while we advise them on how to design and release features in OpenAPI in a way that minimizes disruptions and facilitates adoption. We work directly on improvements to the platform itself. We consult with subject matter experts across engineering teams as needed, but we are ultimately accountable for all cross cutting concerns of our wide ranging domain, such as developer and agentic tooling, system stability, and security. Our needs are always evolving to match the changing landscape of Etsy, and we value collaboration immensely. What does the day-to-day look like? Build and maintain software written in PHP Evolve the OpenAPI platform by identifying areas of friction and implementing features that can measurably improve Developer Experience. Partner with product engineering teams to build and roll out new features Debug hairy issues spanning multiple systems to determine the root cause and either route it to the appropriate owner or fix yourself Collaborate with cross functional partners - product, analytics, research, etc - to determine the highest impact projects that align with our team’s strategy Work with teammates and other subject matter experts as necessary to scope out new platform projects and break them down into multiple stages for delivery, identifying and resolving architectural trade-offs Write high quality code and mentor your teammates to do the same through PR reviews, pairing, and general mentoring Steer the technical direction of the team, from which projects we work on to which team processes we follow Of course, this is just a sample of the kinds of work this role will require! You should assume that your role will encompass other tasks, too, and that your job duties and responsibilities may change from time to time at Etsy's discretion, or otherwise applicable with local law. Qualities that will help you thrive in this role are: Experience with object-oriented software languages. The majority of work developed will be in PHP. Experience building and maintaining REST APIs (especially managing breaking changes) and related technical capabilities. Experience using observability tools to monitor API usage and related metrics, such as Grafana, HoneyComb, or Google Cloud Logging. A strong sense of ownership for our platform The ability to think critically and independently to ensure we are building the right things in the right way Close attention to detail, with the ability to translate business requirements to production-ready code Strong communication that adapts to technical and non-technical audiences Curiosity and ability to learn autonomously Experience working with AI Agents and related tools, like MCP servers and skills Compensation & Benefits In addition to salary, you'll be eligible for an equity package, an annual performance bonus, and our competitive benefits that support you and your family. Base salary is determined by your location, skills, and experience. Etsy uses two geographic pay zones to reflect the labor markets where we compete for talent: one called Geo-1, covering the New York City metropolitan area, San Francisco Bay Area, and Seattle metropolitan area, and one called Geo-2, covering all other U.S. locations. Salary ranges for this role vary by zone and are listed below. Location We prioritize candidates based within commutable distance of Etsy’s Brooklyn Office. Depending on proximity, we ask team members to come in once or twice per week. Remote candidates outside commutable distance may be considered on a case-by-case basis, with the expectation of occasional travel to the office. Learn more details about our work modes and workplace safety policies here. Salary Range: • Geo-1: 197,000.00 - 267,000.00 USD Annual • Geo-2: 178,000.00 - 240,000.00 USD Annual What's Next If you're interested in joining the team at Etsy, please share your resume with us and feel free to include a cover letter if you'd like. As we hope you've seen already, Etsy is a place that values individuality and variety. We don't want you to be like everyone else -- we want you to be like you! So tell us what you're all about. Our Promise At Etsy, we believe that a diverse, equitable, and inclusive workplace furthers relevance, resilience, and longevity. We encourage people from all backgrounds, ages, abilities, and experiences to apply. Etsy is proud to be an equal opportunity workplace and is committed to equal employment opportunity regardless of race, color, ethnicity, ancestry, national origin, religion or creed, sex, pregnancy (including childbirth and related medical conditions), gender, gender identity or expression, sexual orientation, age, citizenship or immigration status, marital or familial status, physical or mental disability, medical condition, genetic information, military or veteran status**, or any other characteristic protected by applicable federal, state, or local law**. If, due to a disability, you need an accommodation during any part of the interview or hiring process, please let your recruiter know and we will work with you to meet your needs. While Etsy supports visa sponsorship, sponsorship opportunities may be limited to certain roles and skills.

Lead design and scaling of privacy platforms ensuring compliance and reliability. | 7+ years backend engineering with distributed systems and privacy/security knowledge. | Etsy is the global marketplace for unique and creative goods. We build, power, and evolve the tools and technologies that connect millions of entrepreneurs with millions of buyers around the world. As an Etsy employee, you will tackle unique, meaningful, and large-scale problems alongside passionate coworkers, all the while making a rewarding impact and Keeping Commerce Human. We believe exceptional companies are built by exceptional teams, and we're intentional about it. That means hiring great people, setting them up for success from day one, and giving them real reasons to grow their careers here. We invest in development that goes beyond promotions, and we foster the trust and relationships that help people do their best work together. What’s the role? This is a full-time position reporting to the Engineering Manager, Privacy & Safety Regulations. Privacy & Safety Regulations team builds the systems, platforms, and engineering practices that help Etsy process and access personal data according to customer expectations. We partner with Product, Engineering, Privacy Legal, Security, Trust & Safety, Marketing Technology, and other teams to make the privacy-preserving path the easiest path to follow. Some of our team values are: We work together to form an effective, high-functioning, and fun team. We source ideas and collaborate with other teams. We prioritize speed to learning, building space in our timelines to clean up and iterate. We prioritize equitable treatment, inclusivity, and diversity. This role is a strong fit for a Staff-level engineer who enjoys architecture, platform thinking, and cross-functional leadership. We are open to candidates whose background is primarily in software engineering, security engineering, privacy engineering, or a closely related technical discipline. We are seeking Staff-level engineers who possess foundational knowledge of security and/or privacy, strong systems judgment, and the ability to translate broad requirements into practical, durable engineering solutions. Legal or regulatory experience is welcome. Our product work is mostly in PHP and MySQL. We are proud to have an engineering culture that encourages career growth and learning. You can learn more about our philosophies, tools, and some of the challenges we’ve been solving on our Engineering blog. What does the day-to-day look like? Architecture & Strategy: Lead the technical design and scale of marketplace-wide privacy platforms, ensuring high reliability, observability, and performance. Core Privacy Systems: Build and optimize systems for consent/preference management, data access/deletion requests, classification, and Safety by Design workflows. Legal & Product Collaboration: Partner with Legal to translate sophisticated compliance requirements into practical APIs, data models, and implementation plans. Developer Enablement: Create paved paths, reusable patterns, and documentation that make building privacy-preserving features default and effortless for developers. Hands-On Delivery & Standards: Contribute to production code, evaluate build-vs-buy decisions, and drive technical quality through architecture and code reviews. System Health & Operations: Mitigate architectural risks, supervise privacy metrics, join support rotations, and automate operational toil using self-service tooling. Mentorship & Alignment: Guide and pair with engineers to resolve technical ambiguity and drive execution across teams.] Of course, this is just a sample of the kinds of work this role will require! You should assume that your role will encompass other tasks, too, and that your job duties and responsibilities may change from time to time at Etsy's discretion, or otherwise applicable with local law. Qualities that will help you thrive in this role are: Experience & Leadership: 7+ years of software engineering experience (or Staff-level equivalent) leading architecture and delivery for complex, ambiguous systems. Backend & System Design: Strong hands-on expertise building reliable backend platforms, APIs, and distributed systems within large codebases. Tech Stack & Code Quality: Proficiency in at least one production language (PHP, Python, Java, Go, etc.) with a focus on clean, testable, and maintainable software. Cloud & Operations: Experience with cloud infrastructure (ideally GCP), CI/CD, service observability, and production incident response. Communication & Influence: Ability to explain complex technical tradeoffs clearly and build cross-functional alignment across product, legal, and engineering teams. Policy & Compliance Translation: Collaborative approach to working with legal, compliance, security, and risk partners to turn policy requirements into scalable engineering controls. Privacy & Security Domain: Foundational knowledge of privacy-by-design, data minimization, access controls, data pipelines, metadata systems, PII discovery, classification, and lineage. Compensation & Benefits In addition to salary, you'll be eligible for an equity package, an annual performance bonus, and our competitive benefits that support you and your family. Base salary is determined by your location, skills, and experience. Etsy uses two geographic pay zones to reflect the labor markets where we compete for talent: one called Geo-1, covering the New York City metropolitan area, San Francisco Bay Area, and Seattle metropolitan area, and one called Geo-2, covering all other U.S. locations. Salary ranges for this role vary by zone and are listed below. Location We prioritize candidates based within commutable distance of Etsy’s Brooklyn Office. Depending on proximity, we ask team members to come in once or twice per week. Remote candidates outside commutable distance may be considered on a case-by-case basis, with the expectation of occasional travel to the office. Learn more details about our work modes and workplace safety policies here. Salary Range: • Geo-1: 197,000.00 - 267,000.00 USD Annual • Geo-2: 178,000.00 - 240,000.00 USD Annual What's Next If you're interested in joining the team at Etsy, please share your resume with us and feel free to include a cover letter if you'd like. As we hope you've seen already, Etsy is a place that values individuality and variety. We don't want you to be like everyone else -- we want you to be like you! So tell us what you're all about. Our Promise At Etsy, we believe that a diverse, equitable, and inclusive workplace furthers relevance, resilience, and longevity. We encourage people from all backgrounds, ages, abilities, and experiences to apply. Etsy is proud to be an equal opportunity workplace and is committed to equal employment opportunity regardless of race, color, ethnicity, ancestry, national origin, religion or creed, sex, pregnancy (including childbirth and related medical conditions), gender, gender identity or expression, sexual orientation, age, citizenship or immigration status, marital or familial status, physical or mental disability, medical condition, genetic information, military or veteran status**, or any other characteristic protected by applicable federal, state, or local law**. If, due to a disability, you need an accommodation during any part of the interview or hiring process, please let your recruiter know and we will work with you to meet your needs. While Etsy supports visa sponsorship, sponsorship opportunities may be limited to certain roles and skills.