Founding Engineer ($160k-$200k + Equity) at TransVoix

TransVoix is a high-growth voice infrastructure platform building real-time multilingual translation that preserves vocal identity. As the first engineering hire, you will architect and scale a real-time audio pipeline serving enterprise contact centers and AI voice agents, own the transition to AWS, harden multi-tenant security, and design the versioned SDK for global enterprise developers.

• 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.

• 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.