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 weekTL; 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 customersRedesigning and improving Kharon's semantic search capabilities, opening new avenues for content discovery — drawing on modern approaches including BM25 tuning, semantic distance, RAG, and rerankingIntegrating Kharon's risk analysis outputs into the search layer, ensuring that graph-based insights surface meaningfully within search results and sub-network explorationDriving the evolution of Kharon's narrative generation pipeline — how we take graph and analytical data and transform it into compelling,



accurate written intelligence for customersPartnering with Product and Engineering to take ownership of the Corestream roadmap and push it to its next stageTweaking and optimizing the metrics that define search quality and narrative relevanceA proven interest or experience in general security, financial crimes, sanctions, export controls, or related domains3+ years of experience in a Data Science or AI Engineering roleHands-on experience with semantic search — including familiarity with BM25, vector search, reranking, and retrieval evaluationExperience with RAG pipelines and working with agentic systems in productionProficiency in Python and SQLStrong product alignment — able to read a roadmap, take ownership of tickets, and drive initiatives forward independentlyBonus: Experience with graph-aware search or integrating knowledge graph outputs into retrieval systems#J-18808-Ljbffr

📌 Data Scientist, Retrieval & Agentic Systems (Madrid)
🏢 Kharon
📍 Madrid