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 and Ireland. 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
* Build and scale backend services in Python (AWS)
* Own production integrations (telephony/voice, WhatsApp, email)
* Develop and improve LLM agent workflows (frameworks a plus)
* Implement reliability, monitoring, evaluation and QA practices
* Work end-to-end: scoping, delivery, deployment and iteration
* Collaborate directly with founders on product and technical direction
Requirements
* 3-5+ years software engineering experience in industry (Python)
* Strong AWS experience (production systems)
* Real exposure to AI/LLM systems in industry (not purely academic)
* Independent, proactive, high ownership mindset
* Strong communication and stakeholder skills
* Computer science degree preferred
Nice to have
* Experience with LangGraph / agent frameworks
* Twilio / voice systems / communications tooling
* WhatsApp / messaging platform integrations
* Start-up experience or strong side projects showing "spikes"
Key details
* Title:
Founding Senior Software Engineer
* Compensation:
up to €120k + equity
* Location:
Central Dublin
* Working model:
On-site 5 days/week
* Tech:
Python, AWS, TypeScript/React, LLM frameworks
* Visa sponsorship:
Not available
Interested? Please apply below.