Senior Software Engineer, Telephony

Strong senior software engineer who thrives in complex, distributed systems Ideally with experience in Go, C, or C++ Deep understanding of APIs, backend architecture, and large-scale real-time systems Experience with developer platforms or communications products Hands-on, curious, and comfortable diving into protocols, packet captures, or production issues Collaborates well across teams, communicates clearly, and values simplicity in design and execution

Design, build, and operate telephony services that manage phone numbers, carrier integrations, and SIP trunks at scale Develop reliable signaling and media systems that bridge traditional telephony with WebRTC and AI pipelines Work closely with carriers and global vendors to expand number coverage, improve routing, and ensure regulatory compliance Collaborate with the SFU, Developer Success, Infrastructure and SDK teams to make voice features easily accessible to developers Monitor and optimize voice quality, latency, and reliability using observability and debugging tools Contribute to the evolution of modern, developer-friendly APIs for telephony and media control