Senior Data Engineer – AI AML Engineering

📍 Berlin, Germany | Full-time | Office-first

Team description

The AI AML Engineering squad sits at the heart of SumUp's Risk & Compliance tribe, building the data products and engineering solutions that protect millions of small businesses from financial crime. We're in the middle of something genuinely new: Risk Decision Center (RDC), also known as SumUp Sentinel, is our flagship product designed to automate up to 90% of fraud and AML case investigations — and it can only work if the data underneath it is correct, complete, and trusted. This role exists because we can't build reliable automation on shaky foundations, and we need an engineer who cares deeply about getting that right.

What you'll do

• Build and operate production-grade Python data pipelines that power AI-driven decisioning and near real-time analytics within Risk Decision Center and SAR Studio
• Own data quality end-to-end: designing validations, monitoring, alerting, and clear SLAs so that analysts, data scientists, and AI systems can rely on what they're seeing
• Build and maintain scalable regulatory reporting pipelines, supporting recurring submissions and ad-hoc regulator requests with full audit trails, versioning, and reproducible outputs
• Define and document data architecture, dataset ownership, and lineage to reduce knowledge silos and improve operational maturity across the squad
• Collaborate closely with Data Platform and a cross-functional team of data scientists, ML engineers, software engineers, and analysts to ship safely in production

You'll be great for this role if…

• Strong proficiency in Python data engineering, with a track record of building and operating scalable pipelines in production environments
• Solid SQL and data modelling skills, with a genuine quality mindset: experience setting standards, writing validations, and keeping data trustworthy at scale
• Experience working with AWS technologies such as S3, EKS, Athena, or Keyspaces, and comfort with containers (Docker), version control (Git), and API design
• Ability to navigate a complex, multi-stakeholder environment, balancing competing priorities while keeping critical work on track
• Comfort operating under ambiguity and shifting deadlines without sacrificing data reliability or correctness

Why you should join SumUp

• 🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup
• 🌈 Commitment to Diversity and Inclusion: Be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced
• 🚀 Enrolment in our Virtual Stock Option programme: you will own a stake in SumUp's future success
• 📚 A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education
• 💶 A corporate pension scheme where we match up to 20% of your contributions
• 🏖️ Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days
• 🏃 Numerous other benefits, such as Urban Sports Club subsidy, Kita placement assistance, and subsidised office lunches
• 🌴 Break4me: 1-month sabbatical after 3 years of service
• 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team

About SumUp

Be empowered to do more that matters.

At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance, and customer relationships.

Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify.

SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedIn, Instagram, and TikTok.