Job Detail

Senior Data Scientist (FinCrime / Fraud)

Data Science and AI Full–time
ID: #12226
Posted: 2026-03-15
Salary

Description

💻 Job Title: Senior Data Scientist (AI / ML Engineer) 💰 Salary: up to £135k (+ very generous early-stage equity, £100k+) 📍 Location: Central London, EC1 (3 office day/week) 🏦 Company: B2B FinTech / Fraud Prevention 👥 Employees: ~25 💸 Funding: $15m+ (Series A) This London startup is building a new intelligence layer designed to bring more context and security to digital payments. Their technology analyses transactions in real time, gathering signals from multiple sources to determine whether a payment is legitimate or potentially fraudulent. The platform combines distributed data systems, real-time investigations and AI-driven decisioning to help financial institutions detect scams while allowing legitimate payments to flow without unnecessary friction. Within 2 years of being founded, they're working with most Tier 1 banks and payment providers in the UK - and are just getting started! They are now looking for an experienced Data Scientist (AI/ML Engineer) with deep fraud or financial crime experience (ideally APP fraud exposure) to join at an early stage and help shape the core intelligence powering the platform. Key responsibilities: • Designing and deploying machine learning models used to detect fraud and financial crime in payment flows • Building features from heterogeneous data sources, including transaction data, contextual signals and unstructured information • Improving systems that extract useful signals from fragmented or unstructured data sources • Building reliable ML infrastructure to train, deploy and monitor models in production environments • Working closely with product and engineering teams to ensure models improve real-world fraud outcomes • Identifying the fraud signals, typologies and data sources that meaningfully improve detection capability • Experimenting with both classical ML techniques and newer AI approaches where appropriate • Helping shape data strategy, including how feedback loops and labelling pipelines are built to improve models over time This role is focused on shipping production systems rather than academic research. ✅ Must have requirements: • Strong practical experience building fraud detection systems or financial crime models in production • Deep FinCrime / FinTech / Payments domain expertise • Product mindset - focus on improving real-world outcomes, not just model metrics. • Experience working in fast-moving environments where systems are built from scratch and priorities evolve quickly. • Experience working with heterogeneous datasets (transaction data, enrichment signals, text, network signals etc.) • Familiarity with model monitoring, drift detection and retraining pipelines • Strong SQL and data engineering capability • Strong programming skills in Python 👍 Bonus points for: • Exposure to / understanding of APP Fraud, payment fraud or transaction monitoring • Previous experience working in an early stage start-up and/or high growth scale up • Exposure to newer approaches such as LLM-powered systems • Cloud infrastructure / data platforms experience, ideally GCP 🛂 VISA sponsorship is available if needed.

Hard Skills 6
Skill Source Confidence
Python llm_hard
100%
SQL llm_hard
100%
Data Pipelines llm_hard
80%
Model Deployment llm_hard
80%
MLOps llm_hard
80%
Model Optimization llm_hard
80%
Soft Skills 2
Skill Source Confidence
Cross-Functional Communication llm_soft
80%
Collaboration llm_soft
80%
Apply Options
Publisher Direct Link
LinkedIn No Apply
LinkedIn No Apply
API Logs for this Job
Query Country Status Response ms Created
Senior Data Scientist (FinCrime / Fraud) extracted 4605 2026-03-22 03:13
Senior Data Scientist (FinCrime / Fraud) classified 496 2026-03-21 21:16
graduate data scientist in United Kingdom gb processed 10746 2026-03-21 17:19
Raw JSON
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