Software Engineer Java - Payouts Platform

Job description

Who We Are: 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. The Team: Our robust payments processing platform, consisting of various sub-platforms, has powered SumUp’s global business for over a decade. A critical component of this platform is our Payouts team, which owns the components responsible for payout profiles and payout scheduling. These systems play a critical role in the wider payout flow: they manage how and when merchants receive their funds and support the configuration needed for reliable payouts across markets. About the Role: Payouts are one of the most important parts of the merchant experience. When a merchant expects to receive their money, the process needs to be reliable, transparent and predictable. In this role, you’ll work on systems that directly support the movement of funds to SumUp merchants. You’ll help modernise existing components, build new capabilities and contribute to a platform that needs to operate reliably across markets and at scale. This is a role for an engineer who enjoys solving complex backend problems, working with distributed systems and balancing the needs of a legacy platform with the opportunity to build something better. Our Stack: Java (minimal setup, Spring Boot), Kafka Streams, PostgreSQL/RDBMS, RestEasy, VueJS. What you'll do: 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. You will be a great fit if you have: 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. Str