Data Scientist, Retrieval & Agentic Systems
Confirmed on the employer's own hiring board on Oct 25, 2026. First seen by Alion on Oct 15, 2026.
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.
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 global 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
ABOUT KHARON:
Kharon operates at the nexus of global security and is on a mission to revolutionize the current landscape. We take complex data as it relates to global security and empower our clients to not only understand the risk associated with their potential business relationships but to operationalize that data so that they can make the best and most informed decisions possible.
From financial crimes and sanctions to export controls and threat identifications, our tools optimize protection against the types of risks that could otherwise be incredibly dangerous and excessively costly to any business. Serving many of today’s leading global financial and multinational institutions, Kharon products are the most powerful in the space with a precision and depth that is absolutely unparalleled.
When you look at any major global crisis event, we’re providing intelligence that’s at the heart of those circumstances. We connect the dots in a way that’s meaningful. As the world continues to evolve in complexity, so too does the demand for our products. Given the significance of our work and the increasing global reliance on our insights, we are looking for a Data Scientist, Retrieval & Agentic Systems to join us as we work to shape the way businesses perceive and navigate global risks.
Disclosures
Kharon 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 [email protected]. 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 www.kharon.com/privacy. 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, atwww.aepd.es. To exercise your rights, contact us at [email protected].
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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