> Markdown version of [/jobs/ext/1611788-data-scientist-retrieval-agentic-systems](https://www.wearedevelopers.com/jobs/ext/1611788-data-scientist-retrieval-agentic-systems). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Scientist, Retrieval & Agentic Systems - **Company:** Kharon - **Location:** Valencia, Spain - **Salary:** €85,000.0 - €95,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Data Analysis, Graph Database, Python (Programming Language), Search Technologies, Multi-Agent Systems - **Published:** July 31, 2026 - **Apply:** https://www.buscojobs.com.es/data-scientist-retrieval-agentic-systems-en-valencia-ID-364253215 ## About the Role 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 relevanceQualificationsA proven interest or experience in global 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 systemsAdditional InformationKharon requires that applicants have right to work in Europe and Spain and does not offer visa sponsorship. xqbhyrx 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. #J-*****-Ljbffr ## Description Data Scientist, Retrieval & Agentic SystemsAsegúrese de presentar su candidatura con toda la información solicitada, tal como se expone en la descripción del puesto a continuación.Department: EngineeringEmployment Type: Full TimeLocation: MadridCompensation: €85,000 - €95,000 / yearResponsibilitiesOwning 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 relevanceQualificationsA proven interest or experience in global 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 systemsAdditional InformationKharon requires that applicants have right to work in Europe and Spain and does not offer visa sponsorship.xqbhyrx 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.#J-*****-Ljbffr ## Related Videos - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library) - 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But What Are They? - Andreas Kollegger - Neo4j](https://www.wearedevelopers.com/videos/1311-graphs-and-rags-everywhere-but-what-are-they-andreas-kollegger-neo4j) ## Related Articles - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Graph and AI Trends 2026: Why Is AI Running but Not Yet Delivering?](https://www.wearedevelopers.com/magazine/680-graph-and-ai-trends-2026-why-is-ai-running-but-not-yet-delivering) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this) - [13 AI Tools You Have to Try](https://www.wearedevelopers.com/magazine/219-13-ai-tools-you-have-to-try)