SumUp

Backend engineer in digital banking

In short

Backend engineer role building a unified global digital banking platform for merchants at a fintech company, working on distributed, event-driven microservices in Golang, Kotlin, Java, and Elixir on AWS/Kubernetes. Requires solid experience with Kafka, Docker, Kubernetes, SQL/NoSQL databases, and CI/CD tooling. Onsite position in Sofia, Bulgaria, aimed at a mid-level engineer with at least 2 years of experience.

# About the Role
In the Global Bank tribe, we are building the infrastructure and core services needed to provide our merchants with a digital bank account that empowers them to be successful at doing what they love. Our goal is to become the most popular banking partner for small merchants globally by offering a high-quality banking experience tailored to their needs - effortless, simple, and affordable.
Responsibilities
•Collaborate with a global team to design and build a unified global banking platform. This includes high-level APIs for multiple regions and local implementations, ensuring high availability and observability
•Be part of the transformation team that is transforming monolithic services into decoupled, highly scalable, region-agnostic, unified global bank services
•Design, implement, and iteratively develop highly available backend services, while continuously evaluating and implementing new methods to ensure the high reliability of transfer systems
•Maintain and improve core services utilizing a modern, cloud-native technology stack (AWS, K8s), with microservices written in Golang, Kotlin and Java and Elixir
•Improve test coverage for existing services and drive the end-to-end delivery of changes, including testing, observability, and monitoring
•Shape and continuously improve our engineering culture by sharing ideas, refining best practices, exploring innovative solutions, and contributing to comprehensive documentation and tool selection
Requirements
•Solid programming experience and interest in working in any of these modern languages (Java, Kotlin, Golang and Elixir)
•Advanced understanding of developing and maintaining distributed and event-driven systems
•Solid experience with event streaming platforms and messaging brokers such as Kafka
•Experience with modern cloud technologies like AWS, and containerization tools such as Docker and Kubernetes
•Comfortable working with SQL and NoSQL databases
•Experienced with CI/CD tools like GitHub Actions or ArgoCD
•Pride in your work, a keen sense of ownership, and dedication to writing clear, maintainable, and testable code
•Curiosity and enthusiasm for solving meaningful challenges for users and a commitment to collaboration and continuous learning
•Comfortable pairing with peers on a day-to-day basis, sharing knowledge and learning from each other, fostering the culture of knowledge sharing
Conditions / Benefits
•Be part of a company that values diversity and celebrates unique perspectives
•Work with a global team of skilled professionals in an environment that fosters collaboration, learning, and growth
•The opportunity to work on large scale fintech products used by millions of businesses around the world
•25 days' paid leave, plus 1 additional day for each year of employment
•Up to 10 days' educational leave to expand your skill set
•Career growth and learning opportunities: regular training, mentorship programs, SumUp University leadership cohort, and a yearly learning budget (2,000 EUR)
•Enrollment onto the virtual stock ownership program - you will own a stake in SumUp's future success
•Access to the SumUp Sabbatical, and an Employee assistance program for mental health
•Join a global team where you belong: D&I Initiatives and Employee Resource Groups such as Pride Club, SumAfro, Neurodiversity, Grupos Mais, Women in Tech, and more
•Additional health insurance, a subsidized Multisport card, free shuttle buses from Joliot-Curie metro station and other great benefits
•You'll attend global offsites and/or hackathons

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