TEST Senior Elixir Engineer
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Posted on:
Yesterday
Vacancies:
1 Vacancy
Job Summary
About Telnyx
Telnyx is an industry leader thats not just imagining the future of global connectivitywere 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 were shaping a new era of seamless interconnection between people devices and applications.
Were driven by a desire to transform and modernize whats antiquated automate the manual and solve real-world problems through innovative connectivity solutions. As a testament to our success were 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. Were 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 Telnyx
Telnyx is a global connectivity platform enabling voice messaging wireless and networking products for customers who build real-time applications. Our infrastructure spans the globe and supports mission-critical communication workloads for enterprises platforms and applications.
We are engineering-led customer-obsessed profitable and growing fast. Youll join a high-impact team building distributed systems used by thousands of developers.
About the Role
We are looking for a Senior Elixir Engineer to join our Real-Time Communications (RTC) team. You will design build scale and maintain distributed telecom systems used for SIP signaling call routing media processing and real-time voice services.
Youll work primarily in Elixir/OTP contributing to systems that must be extremely reliable latency-optimized and globally distributed. Youll collaborate with engineers across infrastructure networking and platform teams to deliver fault-tolerant systems that operate at massive scale.
This is a high-impact role where youll own major components of our RTC platform.
What Youll Do
Design develop and maintain Elixir/OTP services for SIP signaling call routing and real-time media flows.
Build fault-tolerant distributed systems that require extreme reliability (five-nines availability).
Work with telecom protocols (SIP RTP WebRTC STIR/SHAKEN) and event-driven architectures.
Optimize performance and reduce latency across global edge locations.
Participate in on-call rotations and incident response for real-time systems.
Debug complex distributed issues involving networking signaling flows and concurrency.
Collaborate with Infrastructure Data and Network Engineering teams to evolve system architecture.
Improve observability and monitoring for Elixir-based telecom services.
Mentor junior engineers and set engineering excellence across the team.
What Youll Bring (Must-Haves)
4 years professional experience building production systems in Elixir/OTP
Deep understanding of concurrency processes supervisors and GenServers
Experience building distributed high-availability systems
Strong understanding of networking fundamentals (TCP/UDP NAT traversal DNS)
Hands-on experience with SIP RTP or real-time communications protocols
Strong debugging skills in distributed or real-time environments
Experience with Postgres Redis Kafka or similar technologies
Ability to write clean maintainable well-tested code
Comfortable participating in on-call rotations for high-availability systems
Nice-to-Haves
Experience with FreeSWITCH Asterisk or similar softswitch technologies
Experience with WebRTC media servers or STT/TTS pipelines
Knowledge of BEAM performance tuning
Experience with Kubernetes infrastructure-as-code and observability stacks
Telecom background (carrier networks SBCs ENUM signaling gateways)
Previous work in high-growth or high-scale distributed environments
Contributions to open-source Elixir or BEAM projects
Success in This Role Looks Like
After 612 months you will have:
Owned and delivered major Elixir/OTP systems into production
Improved reliability latency and scalability of RTC components
Led incident response and implemented lasting improvements
Become a subject-matter expert in real-time telecom flows
Collaborated across teams to evolve the RTC architecture
Demonstrated strong ownership and accountability for core services
Why Youll Love Working Here
Work on real-time systems used globally and at extreme scale
Join a deeply technical engineering-driven culture
Learn from experts in Elixir distributed systems and telecom
Have autonomy and ownership over critical platform components
Equal Opportunity Statement
Telnyx is an equal opportunity employer committed to diversity and inclusion. We welcome applicants from all backgrounds and do not discriminate based on protected characteristics.
Required Experience:
Senior IC
Key Skills
- Continuous Integration
- Jenkins
- Test Cases
- Performance Testing
- C/C++
- LabView
- Jira
- Software Testing
- System Testing
- Test Automation
- Selenium
- Cerner
About Company
At Telnyx, we build voice, messaging, data and wireless services that facilitate high-fidelity, secure and modern modes of communication. As engineers, we develop globally distributed services that empower developers to create applications capable of real-time communication. We have n ... View more
