Telnyx

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 We're building a local Enterprise Sales Pod in Tel Aviv — one AE and one Forward Deployed Engineer (FDE), working together to build a Telnyx enterprise business in your market. You'll embed directly with enterprise customers to architect and ship production systems on Telnyx's global network — voice, messaging, AI, and wireless. This isn't about demoing products. It's about building real solutions that work at scale. You'll work side-by-side with a dedicated Enterprise AE — not a demo resource, but a commercial partner who owns the named-account list, builds executive relationships, and closes the deal. You own the technical side: discovery, architecture, POC, and production go-live. You win together. No throw-over-the-wall. The Pod Model Enterprise AE — owns the named-account list, builds executive relationships, gets in the room, owns commercial qualification and close, expands the account.. Forward Deployed Engineer — owns technical discovery, designs the architecture, builds the POC when gated, gets the first workload live, removes blockers and finds the next workload. We sell the workload, not the SKU. Customers buy a production outcome — an AI contact center, a SOC/NOC agent, global communications, connected mobility, or enterprise inference — that runs on Telnyx primitives (voice, messaging, numbers, wireless, Voice AI, inference, agents, connectivity). You lead with the outcome conversation, not a product menu. What You'll Do • Embed with enterprise customers to understand their communications workflows, AI use cases, and integration challenges firsthand • Build and deploy custom implementations: AI Voice Assistants, Telnyx APIs (Voice, Messaging, Fax, Wireless), WebRTC • Run open-weight LLMs in customer environments — consume GLM, Kimi, DeepSeek, Qwen, and MiniMax through Telnyx Inference (OpenAI-compatible API; there's no model infrastructure for you to run), or deploy self-hosted stacks (Llama, Mistral, and region-specific models like Hebrew-adapted LLMs or other sovereign models) behind your own serving engine when air-gapped or sovereign-cloud requirements demand it • Deploy and operate LiteLLM as the model gateway in customer environments: a unified OpenAI-compatible interface across self-hosted open-weight models and hosted providers, with routing, load balancing, retries and fallbacks, rate limits, and per-team virtual keys • Instrument and govern LLM usage through the gateway — cost tracking and budgets, caching, logging and observability (OpenTelemetry, Langfuse, or similar), and guardrails — so customers can see and control what their AI workloads are doing • Wire production observability for everything you ship — metrics, logs, traces, dashboards, and alerting (e.g. Prometheus + Grafana for metrics, OpenTelemetry for traces, Graylog or ELK for logs — or the customer's existing stack) — so you and the customer's ops team both know what "healthy" looks like and what pages whom when it isn't • Design model routing strategies for real-time voice workloads, balancing latency, cost, and quality, with sane fallback behavior when a provider degrades • Make the build-vs-buy case between self-hosted open-weight models and hosted frontier APIs, and keep the customer's application code portable across both • Adapt models to customer domains: prompt and RAG pipelines and evaluation harnesses for Hebrew and English language use cases and Israel-specific regulatory environments (Privacy Protection Law, data localization requirements, defense/security sector compliance) • Lead POCs, pilots, and production launches from whiteboard to go-live • Own customer outcomes — stay engaged until the solution is live and stable • Collaborate directly with Product and Engineering to shape the roadmap based on field insights from Israel • Create clear technical documentation, runbooks, and maintainable solutions for handoff • Troubleshoot and resolve complex integration issues alongside customer teams What We're Looking For • CS degree or equivalent experience • 3+ years building and shipping production software — you've written code that real users depended on, you've been on-call for it, and you've debugged it when things broke. (A consulting background counts if this is also true of you.) • Proficiency in multiple languages: Python, Node.js/TypeScript, Go — you're more dangerous in some than others. (Telnyx Edge Compute — functions and stateful actors — is TypeScript, so that one pulls double duty.) • Practical understanding of what breaks in front of a model in production: provider rate limits and quotas, timeout and retry behavior, streaming, token accounting and cost attribution, and the failure modes that only show up under concurrency • Comfortable deploying containerized services on Kubernetes, with secrets management, config, and upgrades as part of the deployment story • You've wired observability and been paged because of it — Prometheus + Grafana, OpenTelemetry, Graylog, ELK, or equivalent. You know what to monitor, what to alert on, and what "healthy" looks like • High-concurrency experience — Kafka, message queues, or event streams at real scale. When throughput spikes you know what breaks — consumer lag, backpressure, hot partitions, rebalance stalls — and what absorbs it: partitioning, consumer groups, parallelism up to your partition count • You've built APIs from scratch, not just consumed them — OpenAPI spec, REST/GraphQL design, auth, rate limiting, versioning, idempotency • Event-driven thinking and cloud-native instincts • Exposure to SIP, WebRTC, or real-time voice/messaging systems • Self-sufficient by default — there's no engineering team behind you. You read the code and the docs, ask the customer (not your manager), and make sound engineering judgment calls on your own • Customer-facing engineering experience — you can run discovery with a customer's engineers and present to their executives in the same week • Ability to translate "it's not working" into root cause • Comfortable working on customer sites and in high-stakes technical conversations • Excellent written and verbal communication in English and Hebrew. You can run whiteboard sessions, live troubleshooting, and escalations with customer engineering teams. • Based in Tel Aviv, or willing to relocate — this is a hybrid role with travel across Israel • Legally authorized to work in Israel, or eligible for sponsorship Bonus Points For • Experience with AI voice assistants, STT/TTS, or LLM-based conversational systems • Building eval sets for a specific domain • Hands-on production experience with an LLM gateway — LiteLLM, Portkey, Kong AI Gateway, or an in-house OpenAI-compatible proxy — including config-driven model definitions, routing and fallback rules, and virtual key management • Familiarity with the open-weight model landscape and the trade-offs between regional and multilingual models, including Hebrew-adapted LLMs and Israeli AI initiatives • Experience with an inference serving engine behind the gateway — vLLM, SGLang, or TGI for production serving; Ollama for lightweight on-prem — and sizing GPU capacity for self-hosted models (KV-cache footprint, concurrent batch size, and context length against VRAM) • SQL proficiency (Postgres, MySQL, Oracle) • ETL and data wrangling experience • CI/CD pipeline design and automation • Background in telecom, CPaaS, or high-growth SaaS • Experience with sovereign or on-prem cloud deployments and Israeli regulatory frameworks (Privacy Protection Law, data localization, defense/security sector compliance including IL2/IL3/IL4 classification, dual-use technology export controls) • Security mindset (IAM, encryption, audit logging) #LI-RH1

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. About You As a VoIP Engineer you understand how the Telnyx Telephony Engine works as whole, while also being able to identify each underlying service and its purpose. You use this knowledge plus your experience working with VoIP technologies to design new features and guide software developers on their implementation. You assist other teams by triaging escalated issues and then working with all the involved parties until they are resolved. You are the subject matter expert for all topics that are telephony related, and when you don't know the answer you will know who to ask. The Opportunity You work with users around the globe, where you help by solving their communications challenges. You’ll also get to work with other engineers to build delightful features that span various parts of the system, as well as our business, sales, and operations teams to understand and solve our users’ pain points. We’re looking for people with a strong background in VoIP technologies and interest in building successful products or systems; you’re comfortable in dealing with lots of moving pieces; you have exquisite attention to detail; and you’re comfortable learning new technologies and systems. • Understand how all Telephony services work and how they are integrated to the platform. • Operate, maintain, expand and support SIP proxies based on Kamailio or OpenSIPS applications. • Handle level 3 troubleshooting escalations and triaging. • Analyze telephony traffic patterns and identify issues and anomalies. • React to critical alerts in order to rapidly return to a full-service state. • Troubleshoot and resolve voice and network protocol communication issues. • Interface with partner organizations for interconnections and expansions. • Design, build, test, deploy and maintain monitoring, alerting, QA and logging tools for Telephony applications. • Coordinate system maintenance and deployment events. Who we're looking for • A degree in Computer Science, Information Technology, Telecommunications or similar. • Strong understanding of IP telephony (VoIP), TCP/IP Networks and related protocols (SIP, RTP, RTCP, ISUP, TLS, STUN, TURN, WebRTC). • Experience with Open Source VoIP applications such as Kamailio, OpenSIPS, FreeSWITCH, RTPEngine, Asterisk and open source tools such as Wireshark, sngrep and Homer. • Experience with Linux, Open Source tools and shell scripting. • Experience with containers and automation/orchestration tools such as Docker, Ansible, Jenkins, Kubernetes. • Familiarity with programming in Python, Elixir or Go are a plus. #LI-JB1 #LI-Remote

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 Opportunity As an Elixir Telephony Engineer at Telnyx, you will create and deploy groundbreaking applications that are part of the Telnyx Telephony platform. Projects often start with a kickstart question and our Engineers lead the way in developing a solution, from high-level system design and prototyping to application development and data integration. As a Telnyx software engineer, you leverage everything around you: Telnyx products, open source technologies, and anything you and your team can build to drive real impact. AI-assisted engineering is an integral part of how we work. We actively use AI agents to accelerate software development, troubleshoot complex issues, and assist with deployments and operational workflows. We leverage our own Telnyx Inference product to power AI-driven engineering workflows, continuously exploring new ways to improve developer productivity, code quality, and operational efficiency. You work with users around the globe, where you help our customers by solving their communications challenges. Each mission presents different challenges, from the regulatory environment to the nature of the data to the user population. You will work to accommodate all aspects of an environment to drive real technical outcomes. You Will: • Design, build, and maintain APIs, services, and systems across Telnyx’s telephony engineering teams. • Work with engineers across the company to build new telephony features at large-scale. • Improve engineering standards, tooling, and processes. • Identify, optimize and resolve issues related to latency, scalability, and performance of core telephony infrastructure. What We're Looking For • Have 2+ years of professional software development experience with the Elixir programming language. • Have deep knowledge of microservice architecture patterns and anti-patterns. • Understand the challenges inherent in concurrent and distributed programming. • 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. Bonus Points For • SIP and other VoIP related protocols and technologies like RTP, WebRTC, ICE, STUN, TURN • Consul, Docker, Kubernetes, Github Actions, Ansible, Grafana, Graylog, Prometheus

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 We're building local Enterprise Sales Pods across global markets — one AE and one Forward Deployed Engineer (FDE), working together to build a Telnyx enterprise business in Tel Aviv. This is not a remote overlay on an existing territory. You will own a named-account list of 30–40 enterprise accounts in Israel, and your job is to turn those accounts into production Telnyx customers. You'll work side-by-side with a dedicated FDE — not a demo resource, but a technical partner who designs architectures, builds POCs, and gets the first workload live. You win together. No throw-over-the-wall. This is a founding role. You'll help define how Telnyx sells into enterprise accounts in Israel, set the playbook, and build the references that the next wave of hires will follow. The Pod Model Enterprise AE — owns the named-account list, builds executive relationships, gets in the room, owns commercial qualification and close, expands the account. Forward Deployed Engineer — owns technical discovery, designs the architecture, builds the POC when gated, gets the first workload live, removes blockers and finds the next workload. We sell the workload, not the SKU. Customers buy a production outcome — an AI contact center, a SOC/NOC agent, global communications, connected mobility, or enterprise inference — that runs on Telnyx primitives (voice, messaging, numbers, wireless, Voice AI, inference, agents, connectivity). You lead with the outcome conversation, not a product menu. What You'll Do • Own a territory of 30–40 named enterprise accounts in Israel, narrowing to ~10 Tier 1 accounts worth $1M+ in annual potential • Build executive relationships — get in the room with CIOs, CTOs, VP Engineering, and line-of-business owners • Run the full sales cycle: prospect, qualify, design the commercial architecture with your FDE, negotiate, and close • Sell production outcomes, not individual products — lead with "let's deploy an AI agent that operates your SOC or NOC workflow," not "which Telnyx products do you want?" • Agree the commercial destination before any custom work begins — no free discovery or free development • Maintain disciplined POC management: every POC has a named executive sponsor, written success criteria, production pricing discussed, a decision date, and a signed commercial document. POCs end in production or they end • Expand the account — one workload becomes three, one $500K customer becomes a $2M customer • Build local references and case studies in your market • Provide accurate pipeline reporting and forecasting — no surprises What We're Looking For • 5+ years of enterprise sales experience selling into the Israeli market — CPaaS, UCaaS, CCaaS, telecom, AI/ML, or similarly technical infrastructure • Proven track record of consistently exceeding quota ($1M+ deals) • Experience selling to both executive and technical buyers — you can hold your own in the boardroom and in the architecture review • Hunter mentality — you build your own pipeline and thrive on outbound, in-person selling • Strong consultative selling skills: can build a clear, compelling ROI story for both technical and business buyers • Familiarity with sales methodologies (MEDDPICC, Challenger, SPIN, etc.) • Comfortable with modern sales tools (Salesforce, Outreach, Gong, etc.) • Excellent written and verbal communication in English and Hebrew. You listen before you pitch. • Willingness to be in the field — visiting customers in person is a core part of this role • Based in Tel Aviv, or willing to relocate — this is a hybrid role with travel across Israel Bonus Points For • Fortune 500 or large enterprise new business sales experience in Israel • Complex sales cycles including RFPs, POCs, and competitive bake-offs • C-Level selling experience — you can navigate procurement, security, and legal complexity, including Israeli enterprise and government sectors, defense tech, and cybersecurity • Understanding of SIP trunking, phone number provisioning, carrier networks, or AI/ML platforms • Established relationships in the Tel Aviv enterprise ecosystem — cybersecurity, fintech, deep tech, semiconductor, defense, or high-growth startups • Local language skills beyond English and Hebrew (Arabic, Russian) #LI-RH1