Cori 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.Para ser considerado para una entrevista, por favor, asegúrese de que su solicitud se ajusta plenamente a las especificaciones del puesto que se encuentran a continuación.Why join:- Help redefine how clinical trials are run using AI, in one of the most important industries in the world,- Work alongside a small team of exceptional engineers, operators, and clinical experts solving genuinely hard problems,- High freedom for research and testing, with lots of green fields for your ideas,- Build systems that don't just automate workflows, they accelerate getting new treatments to patients faster,- Work directly with leadership and founders.Values- High agency,- Curiosity,- Creativity,- Accountability,- Transparency.Mission highlightsWe 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.Reporting LinePatricio, Co-Founder & CTO.Responsibilities- Own AI-related technical decisions across the company and products,- Design and build agent frameworks for complex, multi-step workflows,- Go beyond RAG: tool use,



structured outputs, multi-agent/multi-chain systems,- Build eval and feedback loops (testing, scoring, iteration),- Ship reliable, production-grade AI systems (accounting for latency, cost, and failure modes),- Turn messy clinical processes into deterministic, auditable systems,- Stay current with and experiment with SOTA technologies in the field.Competencies- 5+ years of backend engineering experience, including 1-2+ years building LLM-based systems in production,- Strong Python backend engineer (FastAPI, infrastructure, data structures),- Real, hands-on experience with LLMs in complex, agent-based workflows, not just API calls to a foundation model,- Comfortable guiding decisions on LLM/SLM fine-tuning strategy,- Track record shipping multi-step/agentic systems to production, not just prototypes,- Experience with evals, observability, and system reliability practices,- Solid ML/NLP fundamentals,- Prior experience in a startup or fast-paced environment strongly preferred,- Fully fluent in English (mandatory).Stack: Python, FastAPI, LangGraph, Postgres, Vector DBs, GCP/AWS, DockerRecruitment process- Screening with Patricio (Cofounder & CTO),- Case study,- Debrief with Cori engineers,- Final interview with Emma (Chief Clinical Officer) and Jorn (Cofounder & CEO). xcskxlj Compensation & benefits- 90-95K (EU) + equity,- Hybrid 3 days in-office / Barcelona,- Health insurance,- Lunch vouchers through Cobee.#J-18808-Ljbffr

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