Fraud Prevention Specialist

• Shape fraud prevention strategy for SumUp's acquiring business across international markets
• Analyse large, complex datasets to spot fraud trends, performance shifts and opportunities for improvement
• Design, configure and test decision engine rules, thresholds and authentication strategies
• Monitor fraud, chargeback, approval rate and false positive performance to assess strategy effectiveness
• Investigate root causes of performance changes and recommend clear, evidence based actions
• Translate regulatory and card scheme requirements into practical fraud controls

You'll be great for this role if…

• Proven experience in fraud prevention, fraud strategy or risk management within payments, fintech or another data driven environment
• Advanced skills in SQL and Python, including experience working with data pipelines and large datasets
• Hands on experience configuring fraud decision engines, rule based systems or authentication strategies
• Strong knowledge of Card Present and Card Not Present fraud patterns across diverse markets, with the ability to apply this knowledge to strategy
• Ability to balance merchant conversion, approval rates, fraud losses and false positives when making decisions, and to communicate recommendations clearly to technical and senior stakeholders

It would be a plus if you have

• Participation in industry working groups, webinars or communities focused on global fraud trends
• Knowledge of acquirer settlement flows and interchange economics
• Experience working with card scheme requirements or regulatory change across international payments markets