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

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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.