Senior AI Engineer in Healthcare Startup in Zürich (80-100%)

Job description

We are a team of entrepreneurs, psychologists, and engineers bringing joy back to therapy. At PlaynVoice, we are reshaping mental health care by combining AI with clinical expertise to make documentation a breeze. In under 2 years, our AI scribe has gone from concept to reality, gaining 500+ users in Switzerland and Germany. We are generating over 20,000 patient notes monthly. We are looking for entrepreneurs; fast, ambitious, and smart individuals who want to take care of the people who take care of our mental health. Tasks Prompt Engineering & Pipeline Management: Design, iterate, and maintain prompt systems that reliably generate high-quality clinical documentation across a growing number of templates. Build scalable prompt architectures that let us add new output formats without fragmentation. Evaluate & Integrate AI Models: Benchmark and select the best LLM solutions for clinical documentation. Stay on top of the rapidly evolving model landscape and assess new options. Build Evaluation Pipelines: Design practical evaluation processes across our data pipeline from audio and transcription to LLM-generated output. The goal isn't perfection but knowing when output is good enough. Ensure Clinical Output Quality: Work closely with our psychologists and product team to define what "good" looks like, ensuring features meet the real-world expectations of users. Experiment, Ship, Iterate: Design experiments and data labeling strategies, push them to production, measure real-world performance, and use the insights to drive the next iteration. Requirements Prompt Engineering & LLM Expertise: 2+ years of deep experience in systematic prompt engineering, building structured prompt systems that produce reliable outputs at scale. Software Engineering Foundation: Solid engineering skills in Python and cloud infrastructure (we run on Azure). You build reliable, production-grade systems, not just notebooks. German Language Skills: You need to understand Swiss German to sanity check AI-generated notes against the original audio. Strong High German for evaluating written clinical output. Pragmatic Startup Mindset: You know that good enough is good enough. You ship fast, iterate based on real-world feedback, and resist over-engineering. Ideally you've worked in an early-stage SaaS company. Clear Communicator: Our team works in English day-to-day. You can articulate technical decisions and collaborate effectively across functions. Benefits Real Impact, Fast: 500+ therapists use our product daily, your work improves their lives within days, not quarters. Unique Problem Domain: Clinical AI at the intersection of Swiss German speech, mental health, and regulatory requirements. Massive Ownership: A team of ~10 means your decisions shape the product directly. Flexibility: Remote-first with flexible hours and a coworking space in Zürich when you want it. Equity: Meaningful stake in a high-growth healthtech company. Please send your CV and 5-10 sentences about why PlaynVoice, generic applications won't be considered.