Software Engineer - VoIP & WebRTC

SignalWire is looking for a Software Engineer to enhance our Call Fabric WebRTC and VoIP APIs. SignalWire offers engineers the opportunity to build new services and systems critical to the success of a dynamic, fast-growing company-- to push forward the boundaries of communication and grow their career as SignalWire grows.

SignalWire is a cloud native, 100% fully remote company founded by the creators of FreeSWITCH, the number-one open source communication platform in the world. Through our unique domain expertise and deep technical background, we are rapidly developing and supporting scalable, easy-to-use communications APIs with a tight-knit engineering team.

Position Responsibilities

• Add new features to SignalWire’s CXML, RELAY, SWML, and Call Fabric products
• Review peers’ designs and pull requests
• Create unit and integration tests for CI/CD
• Troubleshoot VoIP and WebRTC problems
• Work with QA to ensure new features are testable

Qualifications:

• Hands-on experience with C programming language
• Experience extending C language VoIP/WebRTC applications like FreeSWITCH, Asterisk, Janus, Kamailio, rtpengine, or Coturn
• Familiarity with Docker and Git
• Knowledge of WebRTC, SIP, SDP, RTP, SRTP, DTLS-SRTP, ICE, TURN, STUN, RFC2833/RFC4733, G.711
• Hands-on experience with Typescript/JavaScript a bonus
• Browser WebRTC API experience a bonus