Fraud Prevention Strategy Analyst

As a key member of the Risk & Fraud BR Tribe, you will help protect SumUp's acquiring business in Brazil, Mexico, and the United States, ensuring that our merchants can operate safely and with confidence. You will join a global, autonomous, cross-functional team committed to building smart, scalable, and frictionless fraud prevention solutions that directly impact business performance and merchant trust.

As a Senior Fraud Strategy Analyst, you will take ownership of critical initiatives to detect and prevent Card-Present (CP) and/or Card-Not-Present (CNP) fraud, leveraging data analytics, decision-engine rules, and continuous experimentation to strike the right balance between fraud loss, false positives, and user experience.

• Analyse large-scale datasets to detect evolving fraud behaviors and propose proactive countermeasures.
• Design, implement, and optimize rules and strategies within our fraud decision engines.
• Continuously monitor fraud performance dashboards, investigate anomalies, and respond to threats in real time.
• Maintain industry-level compliance by turning regulatory and scheme-mandated changes into actionable fraud controls.
• Build and refresh dashboards for visibility into CP hotlists and CNP risk signals.
• Communicate insights and recommendations clearly to leadership and cross-functional stakeholders, such as Fraud Ops and Disputes.
• Produce structured documentation, including strategy manuals and monthly performance reviews.

• Have strong SQL and Python skills for analytical workflows and data pipelines.
• Bring hands-on experience designing and tuning rule-based fraud prevention systems or fraud decision engines.
• Is capable of creating clean, effective monitoring solutions through BI tools (as Tableau, PowerBI, Looker, etc.) 
• Possess applied knowledge in statistics including A/B testing and classification models.
• Have a deep understanding of fraud patterns and behaviors in Brazilian CP/CNP environments.
• Have advanced English proficiency. 

• If you have experience with machine learning techniques.
• Participate in industry working groups, conferences, or webinars related to fraud and risk in Brazil.
• Understand acquirer settlement flows, chargeback processes, and interchange economics.

Why you should join SumUp
Global Experience: Collaborate with a diverse team of 3,000+ people from over 90 countries, and join our global off-sites and hackathons.
Collaborative Culture: Join a team that values diversity, innovation, and teamwork, where your ideas and contributions truly matter.
Career Growth: Be part of a global team working on large-scale fintech products used by millions of businesses.
Great Benefits: Health plans, meal vouchers (VR), Zenklub, Wellhub, life insurance, childcare allowance, and more.
Learning & Development: Access an annual budget of R$ 10,000 for education, certifications, and conferences.
Time Off: Enjoy 30 additional days off through our Break4Me program after 3 years at SumUp.
Grow with Us: Participate in our virtual stock program and benefit from SumUp's success with company shares.

Learn More About SumUp
Office tour at São Paulo
Ask me anything: Engineering at SumUp
SumUp's Innovation Hackathon
Get to know our hiring process

Ready to Join us?
Apply now and help us shape the future of financial solutions for small businesses

Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don't tick every box, it's ok too because it means you have room to learn and develop your career at SumUp.