About SumUp
We've come a long way from our origins as a small startup. Today, we're a truly global fintech company, with over 3000+ people from 80 nationalities, spread across 22 offices on 4 continents. And we're growing and diversifying faster than ever before. SumUp enables businesses to get paid easily, process orders quickly, sell online instantly and manage their money more efficiently. We create the tools businesses need to make their business and their customer experience thrive.
Responsibilities
•Develop and maintain the payout profile and payout scheduling components of SumUp's Payments Processing Platform
•Help transition the existing legacy system to a new event-driven microservices architecture
•Design and build scalable backend services using Java and Spring Boot
•Work across the full software development lifecycle, from technical design and implementation to testing, deployment and production support
•Build reliable, maintainable and well-tested services that support money movement and merchant payouts
•Contribute to API design, data flows and integration patterns across the Payments Platform
•Investigate operational issues, identify root causes and implement permanent fixes
•Participate in technical discussions, architecture reviews and code reviews
•Collaborate with engineers, QA, Product and adjacent Payments teams to deliver high-quality solutions
•Help improve the team's engineering practices, operational readiness and system maintainability
Requirements
•Strong professional experience across the full software development lifecycle
•Hands-on experience building backend services with Java and Spring Boot
•Experience working with distributed systems and microservices architectures
•Understanding of event-driven systems, service integration and reliable data flows
•Experience designing, building and maintaining APIs
•Strong problem-solving skills and a structured approach to investigating complex issues
•Experience writing production-quality, maintainable and well-tested code
•An ownership mindset and willingness to take responsibility for the systems you build and operate
•A collaborative approach and the ability to communicate clearly with technical and non-technical stakeholders
•The ability to work autonomously while contributing actively to a team environment
•A tool-agnostic mindset and the ability to learn new technologies pragmatically
Nice to have
•Experience building a system or service from scratch
•Experience with payments, payouts or other financial technology products
•Familiarity with Kubernetes, Docker and AWS
•Experience with observability, incident management and production support
•Experience modernising or migrating legacy systems
•Knowledge of payout flows, settlement, reconciliation or transaction processing
Conditions
•Make an impact on a global scale - our systems serve millions of merchants
•Learn from experienced engineers while working on complex, real-world problems
•Be part of a tech-agnostic team that uses the right tools for the job
•Collaborate with SumUppers worldwide on large-scale fintech products used by millions, based in our Sofia office (office-first setup)
•Access a €2,000 annual L&D budget to attend conferences or advance your career through education
•Enjoy 25 days of paid leave (increasing with tenure), plus paid vacations for special occasions and a 1-month sabbatical every 3 years
•Benefit from extra perks like health and life insurance, co-sponsored Multisport cards, childbirth/adoption bonuses, discounts, a referral program, 100 EUR monthly food vouchers, 40 EUR flexible benefits, and more
