Key Backend Systems Developer
2 weeks ago
About the Role
We are seeking a highly skilled Senior Backend Engineer to join our Global Bank tribe, where we are building the infrastructure and core services needed to provide our merchants with a digital bank account.
As a Senior Backend Engineer, you will play a key part in helping us build SumUp's own digital bank, working alongside a global team with 32 nationalities across London, Berlin, São Paulo, Sofia, and Vilnius.
- Design and build a unified global platform, including high-level APIs for multiple regions and local implementations, ensuring high availability and observability.
- Build and maintain highly available, self-healing, and resilient event-driven systems.
- Support the migration of systems and processes, ensuring zero downtime for clients, and design, implement, and support high-value features for customers.
- Improve test coverage for existing services and own the end-to-end delivery of changes, including testing, observability, and monitoring.
- Continuously improve our engineering culture by refining best practices, clarifying problems and opportunities, prototyping solutions, providing comprehensive documentation, and selecting new tools and technologies.
About You
- You have solid programming experience in Golang and are interested in working with additional languages such as Java, Kotlin, and Elixir.
- You have extensive experience as a Backend Engineer specializing in distributed, fault-tolerant, and event-driven systems.
- You have proven experience in system design, data modeling, and API design.
- You have hands-on experience with Kafka, Postgres, and SQL databases.
- You have prior experience with modern cloud technologies (AWS, Docker, Kubernetes).
- You are experienced with CI/CD products such as GitHub Actions and ArgoCD.
- You take pride in your work, have a keen sense of ownership, and are dedicated to writing clear, maintainable, and testable code.
- You are a product-focused engineer who is passionate and curious about solving user challenges.
About SumUp
We empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance, and customer relationships.
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