Mobile Core Engineer (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.

About you

We are looking for a senior sw Engineer with Mobile Telecoms experience with a passion for the industry and its opportunities, particularly in the IoT market. You are familiar with 3GPP specifications and you are an excellent problem solver with a strong bias for collaboration and rapid, iterative development.

The opportunity 

The opportunity is within the Core Wireless team which is responsible for the design, development, deployment and maintenance of all mobile network infrastructure elements and associated backend and front end applications.

The Role:

• Design, build and maintain APIs, services, and systems across Telnyx’s Wireless stack


• Debug production issues across services and multiple levels of the stack.


• Work with engineers across the company to build new features.


• Improve engineering standards, tooling, and processes.


• Troubleshooting connectivity issues across roaming partners globally.


• Have multiple years of diverse professional software development experience with more than one programming language or platform. E.g. Go, Erlang, Elixir etc.


• Passion for robustness and correctness. Practical skills in automated testing.


• Understanding of relational databases, SQL.


• Knowledge of mobile wireless systems and protocols

Who we’re looking for:

• Innate curiosity.


• Strong sense of ownership.


• Willingness to learn and apply new knowledge to solve problems.


• Experience with IoT platforms and mobile network systems and protocols.


• Experience in the design and implementation of commercial IoT/M2M solutions


• Experience with multi-vendor IPX connectivity

Bonus points for

• Familiarity with message queues like RabbitMQ and Kafka.


• Familiarity with PostgreSQL


• Familiarity with more exotic databases/key-value stores such as ETS.


• Familiarity with Docker, Kubernetes, Consul, Jenkins, Prometheus.


• Basics of web front-end.

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