What if your next role let you build a real-world AI workforce — where voice agents handle thousands of customer interactions and automate entire industries?
Our client — a YC-backed AI startup (Series A) — is hiring a Founding Software Engineer (London, onsite).
They’re building autonomous AI voice agents for trades and field service businesses, combining LLMs, speech-to-text, and real-time systems to power a new category of “digital workers.”
The role:
Build and ship core product features across Python, TypeScript, cloud infrastructure, and event-driven systems
Own the full product lifecycle — from customer discovery to shipped solutions
Work directly with customers to solve real operational problems
Move fast on MVPs while building scalable, production-grade systems
Raise the bar across testing, reliability, and system design
Shape product direction through direct user feedback and iteration
Work on cutting-edge AI across voice, LLMs, and real-time automation
High-ownership, low-ego team of ~10 people
Massive impact — shaping product, culture, and engineering from day one
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