Data Scientist, Retrieval
Hace 3 días
Comunidad de Madrid, España
Kharon
Jornada completa
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Location:
Madrid, Spain Annual Remuneration: €85,000
- €95,000 and discretionary annual bonus Pay Frequency: Monthly Probationary Period: 180 days Work Arrangement: Hybrid, 3-days per week TL;DR Kharon is seeking a full-time Data Scientist, Retrieval & Agentic Systems based in Madrid.
* Owning and evolving Corestream, Kharon's risk intelligence feed — a dynamic platform that surfaces entity-level insights and topic-based risk narratives to customers
* Redesigning and improving Kharon's semantic search capabilities, opening new avenues for content discovery — drawing on modern approaches including BM25 tuning, semantic distance, RAG, and reranking
* Integrating Kharon's risk analysis outputs into the search layer, ensuring that graph-based insights surface meaningfully within search results and sub-network exploration
* Driving the evolution of Kharon's narrative generation pipeline — how we take graph and analytical data and transform it into compelling, accurate written intelligence for customers
* Partnering with Product and Engineering to take ownership of the Corestream roadmap and push it to its next stage
* Tweaking and optimizing the metrics that define search quality and narrative relevance
* A proven interest or experience in global security, financial crimes, sanctions, export controls, or related domains
* 3+ years of experience in a Data Science or AI Engineering role
* Hands-on experience with semantic search — including familiarity with BM25, vector search, reranking, and retrieval evaluation
* Experience with RAG pipelines and working with agentic systems in production
* Proficiency in Python and SQLStrong product alignment — able to read a roadmap, take ownership of tickets, and drive initiatives forward independently
* Bonus: Experience with graph-aware search or integrating knowledge graph outputs into retrieval systems #J-18808-Ljbffr