LiveKit · 2 months ago
Senior Software Engineer, Telephony
United States
Full-time
Remote
Senior Level
$120K/yr - $250K/yrLiveKit is revolutionizing the AI landscape by providing essential network infrastructure for multimodal AI interfaces. As a Telephony Engineer, you will reimagine how calls, media, and intelligence flow through modern networks, impacting communication across various industries.
Artificial Intelligence (AI)Cloud InfrastructureReal Time
Responsibilities
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
Qualification
Required
Strong senior software engineer who thrives in complex, distributed systems
Experience in Go, C, or C++
Deep understanding of APIs, backend architecture, and large-scale real-time systems
Understanding of how infrastructure choices shape products, developer experience, and end-user impact
Experience working on a developer platform or communications product
Hands-on, curious, and comfortable diving into protocols, packet captures, or production issues
Ability to collaborate well across teams and communicate clearly
Value simplicity in design and execution
Care about building the foundation for how people — and AI — will communicate in the next decade
Benefits
Health, dental, and vision benefits
Flexible vacation policy
Company
LiveKit
The Realtime Cloud. Build and scale voice and video applications.
Founded in 2021
51-200 employees
H1B Sponsorship
LiveKit has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (3)
Funding
Current Stage
Growth StageTotal Funding
$81.3MKey Investors
Altimeter CapitalRedpoint
2025-04-11Series B· $45M
2024-03-13Series A· $22M
2022-09-06Seed· $7.3M
Leadership Team
David Zhao
Co-Founder and CTO
Russell D'Sa
Founder
Recent News
Redpoint Ventures
2025-12-31
2025-12-31
redpoint.com
2025-12-31
Company data provided by crunchbase