Blockchain and Fraud Models Analyst

As a Blockchain and Fraud Models Analyst at ClearBank, you'll join the Financial Crimes Operations Models Management team to develop and maintain monitoring controls for blockchain-based products and fraudulent payment screening. Reporting to the Models Management Senior Manager, you'll specialise in designing rules and models that protect the bank while enabling new products and clients to operate safely.

What you'll do

• Design, develop, tune and maintain rules and models for blockchain transaction monitoring and fraudulent payment screening, ensuring strong risk coverage and operational efficiency to support new products and clients
• Analyse blockchain and payment transaction behaviour to identify emerging financial crime typologies, including cross-chain activity, high-risk wallet exposure and transaction velocity risks
• Optimise monitoring performance by working closely with data scientists, engineers and compliance teams, enhancing rule logic, thresholds and outputs
• Own the ongoing effectiveness monitoring of rules and models, including rule health metrics, dashboards and regular performance reporting
• Conduct root cause analysis on monitoring incidents and model performance issues, recommending and implementing data-driven improvements
• Partner with 1st and 2nd Line of Defence teams and external vendors to ensure monitoring controls are well-calibrated, documented and aligned to risk appetite
• Contribute to strategic initiatives that enhance the organisation's financial crime analytics capabilities, particularly across blockchain and innovative payment products

What you bring

• Strong subject-matter expertise in fraud and blockchain monitoring, including rules, typologies, detection approaches and vendor tooling
• A solid understanding of blockchain use cases and risks, such as digital asset trading, stablecoins, mixers and evasion techniques
• Experience designing and tuning transaction monitoring or fraud rules to balance effectiveness and efficiency
• Knowledge of banking payment products and their fraud risk profiles (for example, transfers, cards, mobile and app-based payments)
• Strong analytical capability, with high attention to detail and the ability to interpret data to distinguish normal versus abnormal behaviour
• Confidence communicating complex monitoring approaches and findings to non-technical stakeholders across technology and business teams
• A proactive, curious mindset with the ability to identify data quality issues and continuously improve financial crime controls

What we offer

• Flexible work arrangements, including London office, fully remote, or hybrid options
• 27 days of annual leave per year, plus bank holidays, with the option to buy or sell up to five days each year
• Flexibility to work outside the UK for up to 30 days in a rolling 12-month period
• Option to swap bank holidays to any other day of your choice
• 24/7 employee assistance programme including mental health support, life assurance and income protection
• Private healthcare and discounted dental cover, with employee perks and discounts
• Enhanced family-friendly leave
• Personal development budgets, role-related training opportunities and unlimited LinkedIn Learning
• Regular social events
• Paid time to do something that matters to you outside of ClearBank each year