Staff Machine Learning Engineer - Retrieval
DoctolibTelemedicine, Practice company
Paris, FranceLead
General Atlantic
Eurazeo
Bpifrance
Accel
Kernel Investissements
STARTPLATZ
Data & AI
About the role
TL;DR
Build and own Doctolib's Medical Knowledge Platform for clinical AI decisions.
- •Set a new pulse for healthcare! We are looking for a Staff Machine Learning Engineer
- •Retrieval to join our AI team working on Clinical decision support and Medical Knowledge.
- •Your mission will be to ground clinical AI decisions in validated, trusted medical sources from HAS guidelines and learned society recommendations to peer-reviewed clinical studies.
- •You will work in a feature team developing Doctolib's Medical Knowledge Platform, contributing directly to the reliability and safety of AI-powered healthcare experiences used by hundreds of thousands of health professionals and millions of patients across Europe.
- •Working in the tech team at Doctolib means building innovative products and features to improve the daily lives of care teams and patients.
- •What you'll do Your responsibilities include but are not limited to: Build and own Doctolib's Medical Knowledge Platform, designing the systems that ground clinical AI decisions in validated medical sources (HAS guidelines, learned society recommendations, clinical studies) Design and maintain both indexing pipelines and retrieval systems, ensuring end-to-end ownership across the full retrieval stack Operate at scale: architect and optimize systems handling 100M+ documents, 50+ req/s, and sub-300ms latency requirements Build custom re-rankers, optimize query processing pipelines, and design robust retrieval evaluation frameworks Engineer deep RAG systems from the ground up
- •going well beyond off-the-shelf components to tackle real medical knowledge complexity Work across the full retrieval stack: vector embeddings, vector search, re-ranking, query expansion and rewriting
Required skills
PythonElasticsearchVertex AINLPLLMs
Domain expertise
healthtechhealthcare
Benefits & perks
Free comprehensive health insurance, 25 days of paid vacation per year, Up to 14 days of RTT, Free mental health and coaching services, Work from abroad for up to 10 days per year, Lunch vouchers, Subsidy for sport club or creative class membership, 50% reimbursement of public transport subscription, ParentCare Program, Long-term employee value sharing plan, Relocation support, Access to AI tools for coding and development, Dedicated training
Tech stack
PythonElasticsearchVertex AINLPLLMs