Senior AI Engineer - Search & Recommendation - Patient Team

Job summary

Responsibilities

We are looking for a Senior AI Engineer to join the Patient team in Paris.

• Design and build the production search & recommendation architecture: full retrieval, ranking, reranking pipeline with standard and off-the-shelf components (vector search…
• Establish strong baselines first (prompts, RAG, model selection) before reaching for custom ML.
• Build evaluation and observability into every stage, with offline and online evaluation.
• Set up the data/event feedback loops that drive iteration and feed deeper ML later.
• Improve search relevance and ranking on Patient facing products , raising result quality

What they're looking for

• Production deployment: ability to ship algorithms to production (ECS-based service on AWS)
• Strong analytical mindset: result-oriented, patient-first approach
• Significant experience as a Software or/and AI engineer shipping search or recommendation systems to production.
• Hands-on experience building end-to-end retrieval: ranking, reranking pipelines and familiar with nDCG, MAP, Recall@k, MRR
• AI-engineering proficiency: turning foundation models and off-the-shelf components into production systems: embeddings & vector search, semantic retrieval, RAG, LLM-based or…

Tech stack

• RAG
• AWS
• TypeScript
• Java
• Python
• React