pulliCuriosity, /li /ulh3Reporting Line /h3pPatricio, Co-Founder CTO. /ppCori Clinical is the operating system behind better clinical trials. Cori builds the best-in-class AI platform for the entire trial startup: research, design, authoring, review, and amendments, so the science never waits on the process. Founded in 2025 by Jorn Jansen Schoonhoven (CEO, ex-Amazon, ex-IBM) and Patricio Fernández Weisson (CTO, ex-AstraZeneca, ex-Sanofi), and backed by leading investors. /ph3Why Join /h3ulliHelp redefine how clinical trials are run using AI, in one of the most important industries in the world, /liliWork alongside a small team of exceptional engineers, operators, and clinical experts solving genuinely hard problems, /liliHigh freedom for research and testing, with lots of green fields for your ideas, /liliBuild systems that don't just automate workflows, they accelerate getting new treatments to patients faster, /liliWork directly with leadership and founders. /li /ulh3Values /h3ulliHigh agency, /liliCuriosity, /liliCreativity, /liliAccountability, /liliTransparency. /li /ulpMission highlights: We are building an AI-guided system that accelerates clinical trials to speeds never seen before. So any organization, large or small, can get medicine to patients faster. /ph3Responsibilities /h3ulliOwn AI-related technical decisions across the company and products, /liliDesign and build agent frameworks for complex, multi-step workflows, /liliGo beyond RAG: tool use, structured outputs, multi-agent/multi-chain systems,



/liliBuild eval and feedback loops (testing, scoring, iteration), /liliShip reliable, production-grade AI systems (accounting for latency, cost, and failure modes), /liliTurn messy clinical processes into deterministic, auditable systems, /liliStay current with and experiment with SOTA technologies in the field. /li /ulh3Competencies /h3ulli5+ years of backend engineering experience, including 1-2+ years building LLM-based systems in production, /liliStrong Python backend engineer (FastAPI, infrastructure, data structures), /liliReal, hands-on experience with LLMs in complex, agent-based workflows, not just API calls to a foundation model, /liliComfortable guiding decisions on LLM/SLM fine-tuning strategy, /liliTrack record shipping multi-step/agentic systems to production, not just prototypes, /liliExperience with evals, observability, and system reliability practices, /liliSolid ML/NLP fundamentals, /liliPrior experience in a startup or fast-paced environment strongly preferred, /liliFully fluent in English (mandatory). /li /ulpStack: Python, FastAPI, LangGraph, Postgres, Vector DBs, GCP/AWS, Docker /ph3Recruitment process /h3ulliScreening with Patricio (Cofounder CTO), /liliCase study, /liliDebrief with Cori engineers, /liliFinal interview with Emma (Chief Clinical Officer) and Jorn (Cofounder CEO). /li /ulh3Compensation Benefits /h3ulli90-95K (EU) + equity, /liliHybrid 3 days in-office / Barcelona, /liliHealth insurance, /liliLunch vouchers through Cobee. /li /ul /p #J-18808-Ljbffr

📌 Senior AI Engineer - @Cori (Barcelona)
🏢 Breega
📍 Barcelona