Department: Engineering

Location: Madri
d
Compensation: €85,000 - €95,000 / ye
ar
Descript
ion
Location: Madrid, S
pain
Annual Remuneration: €85,000 - €95,000 and discretionary annual
bonus
Pay Frequency: M
onthly
Probationary Period: 1
80 days
Work Arrangement: Hybrid, 3-days
per week
TL;DR Kharon is seeking a full-time Data Scientist, Retrieval & Agentic Systems based i
n Madrid.
Respon
sibilities
Owning and evolving Corestream, Kharon's risk intelligence feed — a dynamic platform that surfaces entity-level insights and topic-based risk narratives t
o customersRedesigning and improving Kharon's semantic search capabilities, opening new avenues for content discovery — drawing on modern approaches including BM25 tuning, semantic distance, RAG, an
d 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 fo
r 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 narrativ
e relevance
Qu
alifications
A proven interest or experience in general security, financial crimes, sanctions, export controls, or re
lated domains3+ years of experience in a Data Science or AI Eng
ineering roleHands-on experience with semantic search — including familiarity with BM25, vector search, reranking, and retriev
al evaluationExperience with RAG pipelines and working with agentic systems
in productionProficiency in P
ython 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 retr
ieval system
s
About Kharon
Kharon

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