Job description
Alexander Barnes is leading the search for a Fraud Prevention Lead, Identity & Account Security for one of the fastest growing FinTechs globally.
This role owns identity-linked fraud prevention across a large-scale digital banking and payments environment.
The scope includes:
- Account Takeover and credential abuse
- Authentication and login attacks
- Session hijacking and identity theft
- APP-linked account compromise
- Behavioural and device anomalies
- Mule and coordinated abuse patterns
You’ll own fraud detection and prevention across onboarding, authentication, account lifecycle, and transaction flows.
The focus is real-time decisioning, behavioural detection, fraud signals, authentication controls, and scalable prevention systems.
The team is looking for someone with deep hands-on experience across ATO, Identity Abuse, Authentication Risk, Credential Fraud, Trust & Safety, or behavioural fraud prevention.
Strong understanding of:
- Behavioural analytics
- Device intelligence
- MFA and recovery flows
- Velocity frameworks
- Rules and model-driven detection
- Fraud decisioning systems
Strong SQL and Python capability is expected.
The environment is highly technical and highly cross-functional, working closely with engineering, ML, data science, product, and fraud teams to build scalable fraud prevention systems at platform level.
Extra information
- Status
- Open
- Education Level
- Secondary School
- Location
- City of London
- Type of Contract
- Full-time jobs
- Published at
- 23-05-2026
- Profession type
- Accountancy
- Full UK/EU driving license preferred
- No
- Car Preferred
- No
- Must be eligible to work in the EU
- No
- Cover Letter Required
- No
- Languages
- English
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