Job Description
Do you want to be a founding engineer building production AI agents that handle real customer conversations?
Have you ever owned a system end-to-end, from backend design to live deployment?
Are you ready to help scale an AI product already live with real users in healthcare?
A high-growth, pre-seed AI startup in healthcare is hiring a Founding Senior Software AI Engineer to help scale its AI platform. The product is already live in sites across the UK.
This is a true founding-level role: you’ll work directly with the founding team, own major systems end-to-end alongside the CTO, and help define how AI agents are designed, deployed, and iterated in production.
Role summary
You’ll be a senior, hands-on engineer responsible for building scalable backend systems and deploying applied AI capabilities (LLMs, agentic workflows, voice + messaging). You’ll operate with high autonomy and strong product ownership.
Key responsibilities
1. Build and scale backend services in Python (AWS)
2. Own production integrations (telephony/voice, WhatsApp, email)
3. Develop and improve LLM agent workflows (frameworks a plus)
4. Implement reliability, monitoring, evaluation and QA practices
5. Work end-to-end: scoping, delivery, ...