Data Scientist, Retrieval & Agentic Systems
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Department:
Engineering
Employment Type:
Full Time
Location:
Madrid
Compensation:
€85,000 - €95,000 / year
Responsibilities
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
Qualifications




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 SQL
Strong 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
Additional Information
Kharon requires that applicants have right to work in Europe and Spain and does not offer visa sponsorship. xhfqzwm
All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, ethnicity, gender, gender identity or expression, sexual orientation or identity, neurodiversity, appearances, age, protected veteran status, or status as a qualified individual with disability.

📌 Data Scientist, Retrieval (Valencia)
🏢 Kharon
📍 Valencia