Prompt Engineer (Healthcare)

About us Talkie builds AI Agents for healthcare . Our agents handle patient–clinic communication end-to-end — voice calls, web chat, and SMS — so patients get 24/7 access to care and busy practices never miss a conversation. Every month, our AI Agents handle close to a million real patient conversations across the US and Poland.

Trusted by primary care, specialty practices, and hospitals. The Role We're looking for a Prompt Engineer to own the quality and intelligence of our AI Agents — from prompt design to production. This is a high-impact role at the intersection of language, technology, and healthcare.

Your work will directly shape how hundreds of thousands of patients experience care. This is not a research role. You'll be writing, testing, and iterating prompts that run live with real patients — so rigour, empathy, and a zero-error mindset matter as much as technical skill.

What You'll Do Design, write, and continuously optimise prompts that power our AI Agents — making them natural, accurate, and reliable. Analyse real patient–agent conversations end-to-end, identifying failure patterns, edge cases, and opportunities to improve agent behaviour. Propose and implement technical solutions around function calling, tool use, context caching, and other LLM capabilities that make our agents smarter.

Build and run evaluation frameworks to test agent performance before and after changes — because every conversation is with a real patient and there is zero margin for error. Create clear, structured documentation and customisation instructions so that agents can be tailored to each client’s specific workflows and needs.

Stay on top of the rapidly evolving LLM landscape — new models, techniques, and conventions — and bring the best ideas back to the team. Work closely with the Product Manager (US market), engineering, and client teams to ensure agent quality across all deployments. What will you achieve with us?

Shape the experience that hundreds of thousands of patients have when they reach out to their doctor — across every channel — and make it better every single day. Push the boundaries of what LLM-powered AI agents can do in a highly regulated, real-world, multi-channel environment.

Build evaluation and quality systems for conversational AI that don’t exist yet — you’ll be creating the playbook. Have a direct, measurable impact on patient access to healthcare in both the US.