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 integral 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

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