Staff Engineer – Stablecoin

Ready to help reshape how money moves in Europe?

At SumUp, we’re building a world where small businesses can thrive – whether they’re accepting payments in-store, online, or across borders. We empower over 4 million merchants across 35+ markets to get paid, manage their money, and grow their business with confidence.

From launching a card reader in 2012 to offering a full ecosystem of payment and financial tools today, we’ve come a long way. Our next leap is SURO – a EUR-backed stablecoin that makes merchant payments instant, cheaper and fully compliant.

What’s the opportunity?

We’re looking for a Staff Engineer who can own the technical foundations of SURO and, once the product and team are in motion, grow into the Engineering Manager role. If you love building from scratch, mentoring others and still writing production code, this one’s for you.

This is a newly created role, designed to bring internal technical leadership to a high-priority project. It’s fast-moving, complex, and full of potential – perfect for someone who thrives in ambiguous, high-impact environments.

What you’ll do

• Lead end-to-end technical discovery and MVP build-out for SURO, coding daily in Kotlin or Go.
• Design high-SLA, service-oriented architectures that integrate with our ledger, reconciliation and treasury stacks.
• Work hands-on with a small cross-functional squad (2-3 backend engineers + PM); hire and coach once the product scales.
• Drive best practices in reliability, security and observability from day one.
• Collaborate with Product, Finance, Legal and Banking teams to ship features that meet regulatory and compliance standards.
• Set the engineering roadmap and, over time, transition into an Engineering Manager role while retaining technical depth.

What we’re looking for:

• 7 + years’ experience delivering production software in high-reliability payments, PSP, acquiring or digital-wallet domains.
• Deep backend expertise in Kotlin or Go and solid knowledge of cloud-native patterns (micro-services, event-driven, CI/CD).
• Proven track record designing systems that meet strict SLAs and transaction-integrity requirements.
• A builder’s mindset—comfortable with green-field uncertainty, rapid prototyping and iterative delivery.
• Leadership traits: mentoring, clear communication and the ability to scale a team, even if you haven’t held a formal EM title yet.
• Nice to have: familiarity with blockchain concepts or having shipped crypto / stablecoin features before.

Why join SumUp?

• Shape a first-of-its-kind product at the intersection of fintech, crypto, and compliance
• Collaborate with a world-class, cross-functional team spanning product, engineering, design, legal, and commercial
• Get in early — and help define the future of SumUp’s next strategic bet
• Enjoy a people-first culture that values ownership, curiosity, and collaboration

Perks & Benefits

• €2,000 yearly learning & development budget
• Participate in our VSOP (Virtual Stock Option Plan)
•  25+ days of paid leave, plus 1-month sabbatical every 3 years
• Childbirth/adoption bonuses
• Co-sponsored Multisport card & wellness perks
• Monthly meal vouchers and flexible benefits
• Comprehensive health & life insurance
• An inclusive, values-driven team that celebrates diversity

Interested?

We don’t expect you to be an expert in stablecoins – very few people are. What matters most is curiosity, structured thinking, and the drive to build something real in an emerging and fast-changing space.

About SumUp

We believe in the everyday hero.

Small business owners are at the heart of all we do, so we create powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a ‘team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that the small business owners we partner with can be successful doing what they love.

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, color, 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. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.

SumUp will not accept unsolicited resumes from any source other than directly from a candidate.

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.