As the first engineering hire at TransVoix, you will architect and scale a real-time audio pipeline serving enterprise contact centers and AI voice agents. You’ll own the transition to AWS, harden multi-tenant security, and design the versioned SDK that global developers will depend on for years.
Founding Engineer at TransVoix
TransVoix is redefining global communication with a voice infrastructure platform that preserves vocal identity during real-time translation. Following a massive reception at CCW Vegas 2026, we’re looking for a Founding Engineer to lead our first engineering chapter. You'll own the sub-second latency audio pipeline and the public SDK that enterprise giants like Sinch and Five9 are already requesting. With $160k-$200k base, 3% equity, and a direct path to CTO, this is a career-defining opportunity to build the future of voice-first AI infrastructure for contact centers and developers worldwide.
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Location
Phoenix, United States
Compensation
$160k-$200k + Equity
Company
TransVoix
Role overview
TransVoix is a voice infrastructure platform for real-time multi-lingual translation maintaining a speaker’s entire vocal identity during translation, with three product surfaces sharing one backend: human-to-human translation for contact centers, AI agent voice surfaces for voice AI platforms, and a public developer SDK with usage-based pricing. The platform is built around C2PA cryptographic voice provenance, BIPA-grade consent trails, HIPAA BAA readiness, and is pursuing a SOC 2 Type I program in 2026 with SOC 2 Type II as a 2027 roadmap goal.
What you will do
- Design and maintain the core voice pipeline ensuring sub-second latency and high-fidelity vocal cloning across 15+ languages using STT, translation, and TTS.
- Architect the public-facing developer SDK and sandbox environment, establishing the permanent API contracts that enterprise customers will use to integrate TransVoix capabilities.
- Lead the infrastructure migration to AWS using Terraform while implementing C2PA cryptographic provenance and SOC 2-ready multi-tenant security patterns across the platform.
Who this is a fit for
- Deep production experience building carrier-grade voice pipelines, specifically handling WebRTC, WebSocket audio framing, and low-latency jitter management at an infrastructure-grade scale.
- Mastery of asynchronous Python (FastAPI/asyncio) and React/TypeScript, with a history of shipping stable, versioned APIs or SDKs for external developer consumption.
- Architectural mindset focused on multi-tenant security and Infrastructure as Code, capable of leading build-vs-buy decisions for self-hosted model inference and GPU infrastructure.
Why this role is remarkable
- Incredible market pull: Major industry players including Sinch and Five9 are already requesting demos and SDK access following a breakout showing at CCW Vegas 2026.
- High-stakes ownership: You are the founding engineer with a clear path to CTO, owning everything from sub-second latency audio pipelines to the cryptographic voice provenance infrastructure.
- Advanced tech stack: Work with a sophisticated async Python/FastAPI backend and real-time audio components that outperform standard solutions, maintaining speaker identity across bidirectional translation.
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