Global Fraud Prevention Strategist

SumUp; Berlin (NH); On-site; USD 100,000 - 145,000; Full time

Benefits offered by this job

L&D budget

Pension scheme

Paid leave 28 days + holidays

Urban Sports Club subsidy

Kita placement assistance

Office lunches

Sabbatical after 3 years

Referral bonus

Job summary

SumUp is seeking a Fraud Prevention Strategy Specialist in Berlin to shape global fraud strategies for the acquiring business. You will analyze large datasets to identify trends, configure and test decision engine rules, and monitor performance metrics across markets.

The role requires deep experience in fraud prevention, strong SQL/Python skills, and the ability to translate regulations into practical controls.

Qualifications

• 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.

Responsibilities

• 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.

Skills

SQL

Python

Fraud rules

Fraud strategy

Stakeholder comms

Job description

SumUp is seeking a Fraud Prevention Strategy Specialist in Berlin to shape global fraud strategies for the acquiring business. You will analyze large datasets to identify trends, configure and test decision engine rules, and monitor performance metrics across markets.

The role requires deep experience in fraud prevention, strong SQL/Python skills, and the ability to translate regulations into practical controls.