Backend Engineer _ Apps team – Remote-First

In today’s digital Europe, payments still feel too complicated. Random delays, confusing rules, extra apps and accounts make it harder than it should be to pay and get paid.

The European Payments Initiative is changing that with Wero, a proudly European digital wallet to make payments easier, clearer and more secure. Online, in store, at home and across borders, with your money and data protected under European laws and regulations.

Wero is live in Belgium, France and Germany and launching very soon in Luxembourg and the Netherlands. Backed by 16 major banks and the two largest European acquirers, we’re building a brand new, proudly European payment system. Why not join us?

🔎 What's In It For You

Join EPI as a Backend Engineer and become part of a bold movement to transform how Europe pays. This isn’t just another payment solution, it’s a once-in-a-generation opportunity to help build a unified, secure, and seamless European payment ecosystem from the ground up. Your work will directly shape a product used by millions, backed by Europe’s leading banks, and designed to empower consumers across the continent.

🐝 About The Team

You’ll be part of a Pan-European Product and Engineering team that operates in an Agile environment. You’ll work closely, but fully remotely, with experts in Product Design, Web Dev, Mobile Dev, Backend Dev, QA and DevOps from Germany, France, the Netherlands, Poland, and other European locations.

You’ll collaborate daily with teammates across Germany, France, Spain, Latvia, the Netherlands, Poland, and other European locations.

💥 Your impact

Technical leadership and development

• Own and deliver backend features end to end, from API design and implementation to deployment, monitoring, and operational support.
• Lead the architecture and evolution of EPI’s cloud-based microservices, ensuring scalability, performance, security, and alignment with mobile and business needs.
• Define and uphold high code quality standards, apply best practices for maintainable and testable services, and ensure backend solutions integrate smoothly with mobile applications.
• Actively support mobile engineers by providing backend expertise, guidance on API usage, data contracts, and performance considerations.

• Drive backend platform decisions with a clear understanding of both current product requirements and future growth, especially as they impact mobile experiences.
• Balance global platform consistency with mobile-specific needs, making pragmatic trade-offs where required.
• Identify opportunities to improve backend reliability, developer experience, and delivery speed for mobile and platform teams alike.

• Collaborate closely with mobile engineers, acting as a primary backend point of contact for mobile-related topics and initiatives.
• Work with product management, design, web, QA, and other backend teams to ensure aligned, well-communicated, and efficient delivery.
• Represent backend perspectives in cross-team discussions, ensuring clear ownership, shared understanding, and consistent backend practices across the organization.

• Kotlin, Ktor, MongoDB, OpenAPI, Docker
• AWS, Event Sourcing, Kubernetes, Kotest
• Yarn, Nextjs , MUI, TypeScript

• +7 years of professional experience in software development, including at least 5 years of back-end development
• Fluent in English (CEFR C1 or C2); German, Dutch, French, or other European languages are a plus
• Thrive in a remote-first, multicultural environment
• Proven experience in building scalable system architectures and familiarity with modern design patterns and REST API design, coupled with a dedication to clear technical documentation
• Proficiency in core backend technologies like Kotlin, Ktor, Docker, Kubernetes, MongoDB and Kafka
• Ability to recognize and implement effective automated tests at suitable levels of involvement
• Experienced in Agile methodologies, adaptable to changing project needs and timelines

• Experience in implementing UI/UX or frontend components, with an understanding of user-centric design principles
• Experience designing and implementing Backend-for-Frontend (BFF) services
• Familiarity with frontend or mobile integration concerns, including API contract design, performance considerations, and client-specific requirements

• A first call with one of our recruiters
• Technical interview with one of our Senior Backend Engineers
• Final interview with the Engineering Manager and Product Manager
• Hopefully, an offer you can’t refuse

• You're not passionate about web technologies or not willing to work in a fully remote environment
• You are not interested in delivering feature from end to end
• If you are not familiar with JVM languages

• Remote-first culture with quarterly and annual all-staff in-person meetups to keep teams connected and collaborative
• Possibility to work from another EU country for up to 3 months per year
• Competitive compensation package, featuring salary, performance-based bonus, and a thoughtfully designed, high-quality benefits program
• The opportunity to be part of a multicultural European company
• Learning & development budget: €5,000 training budget per year

🫶 Our commitment to equal employment opportunities

EPI offers the same job opportunities to all, without distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age. EPI promotes the development of an inclusive work environment that mirrors the diversity of the clients our product is serving.