Telephony/SIP Developer (Live Anywhere)
Telephony/SIP Developer
Join a high-growth engineering team building global, high-performance communication software. We are looking for a backend expert to evolve our core telephony platform.
The Role
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50-60% Coding: Build and maintain SIP-based services and real-time communication components.
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15-25% Architecture: Collaborate on system design and new feature delivery.
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20% Peer Review: Maintain high standards for code quality and performance.
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Tools & Tech: Primary development in Go (with some C++/Python) using Cursor.
What You’ll Do
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Design scalable, reliable backend services for our core telephony platform.
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Diagnose and resolve complex issues across networking and distributed systems.
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Write clean, documented code with robust automated testing (Unit, Integration, E2E).
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Own the signaling logic and infrastructure that powers worldwide communication.
Requirements
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3+ years of professional software development experience.
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Strong Go or C++ skills: Must be willing to work in Go 90% of the time.
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Deep SIP Knowledge: Expert understanding of the SIP stack, headers, and call flows.
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Protocol Fluency: Hands-on experience with RTP/RTCP and UDP/TCP (beyond third-party abstractions).
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Core Telephony: Proven track record building/debugging telephony infrastructure.
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Logistics: Must be able to start by 10:00 AM EST and travel twice yearly for meetings.
Perks
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100% Remote (US or Canada-based).
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Unlimited PTO & 401(k) matching.
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Direct-hire, stable engineering environment.