Founding Software Engineer - AI Voice

Founding Software Engineer — AI Voice

💡 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

Why join?

🌎 Join a YC-backed, Series A startup building category-defining AI products

💰 £150,000 – £200,000 + equity

🛂 Visa sponsorship available

⚙️ 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

📩 Interested? Apply now!