OverviewLocation: Madrid, SpainAnnual Remuneration: €85,000 - €95,000 and discretionary annual bonusPay Frequency: MonthlyProbationary Period: 180 daysWork Arrangement: Hybrid, 3-days per weekDepartment: EngineeringEmployment Type: Full TimeDesignation: AI Engineer, Retrieval & Agentic SystemsResponsibilitiesOwning 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 integral 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 systemsDisclosures and Legal NoticesKharon is committed to cultivating and maintaining a workplace that is free from harassment and discrimination.
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.If you require any adjustment to participate in the recruitment process, please contact ******.
You must have the right to work in Europe and Spain.
Kharon is unable to offer visa sponsorship for this role.By applying for this position, you acknowledge that Kharon will process your personal data for recruitment purposes in accordance with applicable data protection laws, including the EU General Data Protection Regulation and Spanish data protection legislation.
For information about how we collect, use, store, and protect your personal data, please review our Candidate Privacy Notice at .
You have the right to access, correct, or request deletion of your data, to object to or restrict its processing, and to lodge a complaint with the Spanish data protection authority, the AEPD, at .
To exercise your rights, contact us at ******.If your application is unsuccessful, your data will be retained for up to 12 months before being securely deleted.
If you accept a role, your data will transfer to your employee record.
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📌 Ai Engineer, Retrieval & Agentic Systems (Madrid)
🏢 Kharon
📍 Madrid