data
Fraud Prevention Strategy Specialist
Fraud Prevention team · Berlin, Germany (office-first)
SumUp's Fraud Prevention team sits at the intersection of risk, data and global payments, working at pace to stay ahead of one of fintech's most dynamic challenges: stopping fraud at scale across multiple markets and products. In this role, you'll help protect SumUp's acquiring business globally, using data, analytical thinking and fraud prevention expertise to reduce losses while safeguarding approval rates and the experience of our merchants and their customers. You'll work on complex, high impact fraud challenges across international markets, building a deep understanding of fraud performance and turning your analysis into practical strategies that shape how we prevent fraud over time.
What you'll do
- 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, includi