Join to apply for theSenior Software Engineer, Telephonyrole atLiveKit .Base pay range: $120,000.00/yr - $250,000.00/yr.LiveKit is revolutionizing the AI landscape by providing the essential network infrastructure that powers multimodal AI interfaces, enabling seamless audio and visual interactions. Founded in 2021, LiveKit has rapidly grown to support over 3 Billion calls annually, 100,000+ developers globally, and industry giants like OpenAI, Character AI, Spotify, and Meta.You’ll Thrive at LiveKit if:Obsess with crafting code that is fast, reliable and practical for the problemAre known as the go-to person for tackling tough technical problemsWork hard and can build and ship fastCan clearly explain complex technical concepts to othersAre a fast learner, frequently picking up recent languages and toolsAbout This Role: Voice has connected people for over a century — and it’s entering a new era. As a Telephony Engineer, you’ll help reimagine how calls, media, and intelligence flow through modern networks. From SIP and RTP to AI-driven voice experiences, your work will directly impact how businesses and customers communicate across industries worth billions.What You’ll Do:Design, build, and operate telephony services that manage phone numbers, carrier integrations, and SIP trunks at scaleDevelop reliable signaling and media systems that bridge traditional telephony with WebRTC and AI pipelinesWork closely with carriers and global vendors to expand number coverage, improve routing, and ensure regulatory complianceCollaborate with the SFU, Developer Success,



Infrastructure and SDK teams to make voice features easily accessible to developersMonitor and optimize voice quality, latency, and reliability using observability and debugging toolsContribute to the evolution of modern, developer-friendly APIs for telephony and media controlWho You Are:You’re a strong senior software engineer who thrives in complex, distributed systems — ideally with experience in Go, C, or C++You have a deep understanding of APIs, backend architecture, and large-scale real-time systemsYou think beyond code — you understand how infrastructure choices shape products, developer experience, and end-user impactYou’ve ideally worked on a developer platform or communications product and appreciate the nuances of reliability, latency, and usabilityYou’re hands-on, curious, and comfortable diving into protocols, packet captures, or production issues when neededYou collaborate well across teams, communicate clearly, and value simplicity in design and executionYou care about building the foundation for how people — and AI — will communicate in the next decadeOur Commitments to YouAn opportunity to build something truly impactful to the worldContribute to open source alongside world‑class engineersCompetitive salary and equity packageHealth, dental, and vision benefitsFlexible vacation policySeniority levelMid‑Senior levelEmployment typeFull‑timeJob functionEngineering and Information TechnologyIndustriesTechnology, Information and InternetReferrals increase your chances of interviewing at LiveKit by 2x.Get notified about new Senior Software Engineer jobs in Canada.#J-18808-Ljbffr

📌 Senior Software Engineer, Telephony - $120,000 - $250,000 A Year (Toronto)
🏢 LiveKit
📍 Toronto