Staff VoIP Engineer, Axon 911
About The Position
Axon 911's Carbyne Voice team is building the infrastructure that handles emergency calls — in the cloud. This is not a monitoring layer on top of existing telephony; it is the actual call-handling engine, responsible for every packet, every route, and every millisecond of uptime in a life-critical system. As a Staff VoIP Engineer, you will help design, build, and maintain this infrastructure, ensuring that no call fails — ever. Your work will directly influence the reliability of 911 dispatch for PSAPs across the country, while advancing one of the most novel cloud-native voice platforms in public safety.
Requirements
- Deep experience with VoIP/UC systems and SIP protocol. You have written or integrated SIP-based applications and can speak fluently about the protocol's behavior
- Cloud platform experience, ideally AWS. You understand how to build distributed, fault-tolerant systems in the cloud, not just in hardware-based telecom infrastructure
- Familiarity with open-source VoIP tools such as FreeSWITCH and Kamailio. Direct experience with these is a strong signal; adjacent experience is welcome
- Comfort operating in a highly cross-functional environment. You work fluidly with networking, operations, and product teams and communicate technical complexity clearly
- Someone who understands that every call handled well is an opportunity to help, support, and ultimately save lives
Responsibilities
- Design and develop cloud-based voice infrastructure handling SIP routing, call state management, and redundancy for emergency 911 systems
- Build and maintain integrations with telephony providers, PSAPs, and external partners, ensuring end-to-end call reliability in production environments
- Drive major features and architectural evolution of the voice platform
- Collaborate closely with operations, networking, and engineering teams to ensure system visibility, reliability, and alignment on infrastructure changes
- Participate in on-call rotations or incident response for production voice infrastructure, given the zero-failure requirement of the system
Benefits
- Competitive salary and 401k with employer match
- Discretionary time off
- Paid parental leave for all
- Medical, Dental, Vision plans
- Fitness Programs
- Emotional & Development Programs
- snacks in our offices
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
