Telnyx

Troubleshoot VoIP, SIP, and fax over IP issues, analyze network packets, and assist customers with setup and technical problems. | Experience with VoIP protocols, network packet analysis, API troubleshooting, and customer support skills. | About Telnyx Telnyx is an industry leader that's not just imagining the future of global connectivity—we're building it. From architecting and amplifying the reach of a private, global, multi-cloud IP network, to bringing hyperlocal edge technology right to your fingertips through intuitive APIs, we're shaping a new era of seamless interconnection between people, devices, and applications. We're driven by a desire to transform and modernize what's antiquated, automate the manual, and solve real-world problems through innovative connectivity solutions. As a testament to our success, we're proud to stand as a financially stable and profitable company. Our robust profitability allows us not only to invest in pioneering technologies but also to foster an environment of continuous learning and growth for our team. Our collective vision is a world where borderless connectivity fuels limitless innovation. By joining us, you can be part of laying the foundations for this interconnected future. We're currently seeking passionate individuals who are excited about the opportunity to contribute to an industry-shaping company while growing their own skills and careers. The working hours are 9am-6pm CST Monday to Friday The Role As a Product Support Engineer, you are a motivated and enthusiastic individual with a passion for technology. You will work closely with our operations and engineering squads, triaging and troubleshooting frequent cases. Communication skills, flexibility and a desire to learn are essential, as well as the ability to work on multiple concurrent priorities through chat, tickets and calls. This is a unique opportunity to join our team and make a difference in a growing, innovative company. In This Role You Will Troubleshoot VoIP/SIP calls and RTP packets using Wireshark and our internal tools to help customers or vendors identify call issues. Replicate API issues reported by customers using Postman and either solve or escalate said issues to the appropriate teams. Analyze T.30(passthrough fax tones) and T.38 Fax over IP packets using our internal tools and Wireshark to troubleshoot faxing issues. Run live packet captures from cloud servers on the Linux terminal using Tshark. Familiarize yourself with our API and VoIP based products in order to help customers with their setup inquiries. Monitor operational pager alerts in an efficient and timely manner. Improve customer self service through better processes and documentation. Troubleshoot customer and vendor concerns quickly and efficiently to maintain the highest standards of professional customer service. Liaise with your technical peers for resolution of escalated cases. All while working directly with customers through Chat, Call and Email. You May Be Fit For This Role If You Have SIP, RTP, T.38 and other Fax over IP and Voice over IP Protocol knowledge. Strong customer-focus, interpersonal and communication skills. Excellent listening and questioning skills, combined with the ability to interact confidently with clients to assess problems and explain solutions. Continually looking to solve problems. Understand issues and requirements well in order to provide solutions. Outgoing and socially interactive. A self starter looking to assist at any moment and to take the initiative. Balancing daily workload and multi-tasker who can effectively prioritize work. What We Value Experience in a product support/application role. Voice over IP experience with the SIP signalling protocol or other related telephony protocols. An understanding of general web technologies such as API/SDK's. Experience working with SMS over SIP SIMPLE, SMPP or HTTP(API requests). Confidence with technology and the Internet. A natural curiosity and experience in applying technology to resolve customer issues. Technologies We Use Wireshark for network packet analysis. Postman for API troubleshooting. Linux and the Linux terminal. Tshark to do live captures from the Linux terminal. Metabase, Graylog and Jira. #LI-KG1 #LI-REMOTE

Lead the Voice AI backend roadmap, prioritize features, define requirements for voice primitives, partner with engineering to improve system performance, and align product with leadership. | Must have real-time voice experience with telephony, SIP/WebRTC, and proven success shipping backend infrastructure products. | About Telnyx Telnyx is an industry leader that's not just imagining the future of global connectivity—we're building it. From architecting and amplifying the reach of a private, global, multi-cloud IP network, to bringing hyperlocal edge technology right to your fingertips through intuitive APIs, we're shaping a new era of seamless interconnection between people, devices, and applications. We're driven by a desire to transform and modernize what's antiquated, automate the manual, and solve real-world problems through innovative connectivity solutions. As a testament to our success, we're proud to stand as a financially stable and profitable company. Our robust profitability allows us not only to invest in pioneering technologies but also to foster an environment of continuous learning and growth for our team. Our collective vision is a world where borderless connectivity fuels limitless innovation. By joining us, you can be part of laying the foundations for this interconnected future. We're currently seeking passionate individuals who are excited about the opportunity to contribute to an industry-shaping company while growing their own skills and careers. We’re hiring a Senior Technical Product Manager to lead the roadmap for our Voice AI backend — the core infrastructure that powers speech-to-text, text-to-speech, LLM integrations, and real-time call control. This is a brand-new role with high visibility, reporting directly into Product and working closely with engineering. What You’ll Do Own the Voice AI backend roadmap end-to-end. Scope and prioritize features around STT, TTS, VAD, and LLM integrations. Define requirements for programmable voice primitives (call control, media injection, partial ASR). Partner with engineering to deliver improvements in latency, reliability, and multi-engine support. Establish metrics and feedback loops to measure performance and UX. Act as the “glue” between product, engineering, and leadership. What We’re Looking For Strong background in programmable voice: SIP, WebRTC, call control APIs. Familiarity with AI pipelines (STT, TTS, LLM orchestration). Proven success delivering backend or distributed systems products. Hands-on comfort with APIs (Postman, cURL) and technical specs. Decisive, opinionated, and able to drive priorities in fast-moving environments. Dealbreakers: Must have real-time voice experience (telephony, SIP/WebRTC). Must have experience shipping backend infrastructure products. Why Join Telnyx? High-impact, net new role — define Voice AI at Telnyx from the ground up. Work across product, engineering, and leadership with direct visibility to the CEO. Build the future of programmable voice + AI in a fast-moving, innovative environment. #LI-KG1 #LI-DUBLIN #LI-IRELAND #LI-DENVER #LI-AMSTERDAM #LI-EUROPE

Design and build performant, reliable APIs and microservices, automate production systems, and maintain high engineering standards. | 3+ years Python development, experience with async frameworks, microservices, relational databases, and familiarity with Docker and Kubernetes. | About Telnyx Telnyx is an industry leader that's not just imagining the future of global connectivity—we're building it. From architecting and amplifying the reach of a private, global, multi-cloud IP network, to bringing hyperlocal edge technology right to your fingertips through intuitive APIs, we're shaping a new era of seamless interconnection between people, devices, and applications. We're driven by a desire to transform and modernize what's antiquated, automate the manual, and solve real-world problems through innovative connectivity solutions. As a testament to our success, we're proud to stand as a financially stable and profitable company. Our robust profitability allows us not only to invest in pioneering technologies but also to foster an environment of continuous learning and growth for our team. Our collective vision is a world where borderless connectivity fuels limitless innovation. By joining us, you can be part of laying the foundations for this interconnected future. We're currently seeking passionate individuals who are excited about the opportunity to contribute to an industry-shaping company while growing their own skills and careers. The Role Our Python team works on building highly available low latency microservices from scratch using the newest bleeding-edge technologies. You will work on creating internal tools to be used across the company, have the opportunity to make a huge impact on our growing company, solving complex problems as we scale. You’ll be part of a group of people working together to build solutions to mission-critical problems and a company that values the very best ideas. You’ll work closely with fellow engineers, product managers, and DevOps to build performant APIs and robust distributed systems. What You’ll Do Design performant, reliable, and developer-friendly APIs. Write clean, testable, maintainable code with appropriate test coverage. Build, test, and deploy applications to deliver critical global communications services. Identify and resolve issues related to latency, scalability, and performance. Create tools to automate aspects of production systems. Participate in code reviews and uphold high-quality engineering standards Who we're looking for 3+ years of professional software development experience in Python Experience with web application development and microservice architecture Strong grasp of async Python frameworks (e.g. FastAPI, asyncio, aiohttp) Comfortable working with relational databases at scale. Experience in a highly-available, uptime-critical production environment. Deep knowledge of microservice architecture patterns and anti-patterns. Strong understanding of RESTful API design and distributed systems. Familiarity with Docker, Kubernetes, Consul, Jenkins, Prometheus, or RabbitMQ. Exposure to AI/ML pipelines or experience integrating ML models into production systems. Excellent communication skills and the ability to work cross-functionally Fluent English Bonus Points For You take a thoughtful approach to decision making, knowing when to move fast and when to long-term optimize. You want to work in a fast-paced, product-driven environment. You keep up to date with the latest technologies and patterns, and enjoy sharing what you’ve learned. #LI-RH1