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About the Role
The Global Bank team builds core infrastructure and services for a digital bank account, helping small businesses manage their money. The Balance Management Squad is central to this platform, currently consolidating the European balance management system and building a global transaction history service for consistent financial activity views.
Responsibilities
- Build and evolve SumUp’s core banking services powering ledger operations and transactions, transforming regional systems into a unified, scalable global platform.
- Tackle complex distributed systems challenges, ensuring resilient services that perform under high transaction volumes.
- Support modernization initiatives by improving observability, adding test coverage, refactoring code, and gradually introducing new architectural patterns.
- Contribute to key architectural decisions, building ledger and transaction history systems from the ground up for global scalability.
- Collaborate with teams across Risk, Treasury, Finance, and Infrastructure for smooth, compliant, and reliable global operations.
- Take ownership from design to production, running services, monitoring performance, and continuously improving software delivery at scale.
Requirements
- Solid backend experience building reliable, high-volume services with careful consideration of system design, APIs, data modeling, and service interaction.
- Proficiency in Golang and comfort learning other languages like Kotlin or Elixir.
- Ability to write maintainable, well-tested code, follow CI/CD best practices, and take responsibility for software from development to production.
- Experience building, deploying, and running services in cloud environments like AWS using Docker and Kubernetes.
- Fluency in relational databases that perform well under load and maintain data consistency.
- Collaborative spirit with experience working across regions, communicating clearly, exchanging feedback effectively, and making joint technical decisions.
- Curiosity for building reliable financial services and understanding the banking domain.
Skills
- Golang
- Kotlin
- Elixir
- System Design
- APIs
- Data Modeling
- CI/CD
- AWS
- Docker
- Kubernetes
- Relational Databases
- PostgreSQL
- Kafka
- Grafana
- Honeycomb
Location
- Global
Work Type
- Full-time
Experience Level
- Senior
Benefits
- Career growth and learning opportunities
- Regular training
- Mentorship programs
- SumUp University leadership cohort
- Yearly learning budget (2,000 EUR)
- Sabbatical program
- D&I Initiatives
- Employee Resource Groups
- Health & wellness benefits
- In-house fitness classes
- Gym in the office
- Subsidized Urban Sports Club
- Available psychotherapy sessions
- Subsidized Public Transport Card
- Kita placement assistance
- Pension Scheme
- Language Learning platform/courses
- Virtual stock ownership program
About the Company
- SumUp empowers small businesses globally with simple and affordable business tools to start, run, and grow. Over 4 million businesses in 36 markets rely on SumUp as their financial partner. The company has over 3,000 employees from over 90 nationalities, fostering global collaboration and an innovative mindset. SumUp values inclusivity and continuous learning, providing a safe space for personal and professional growth. Their differences make them unique and strong, striving for an environment where everyone belongs and feels supported.
Equal Opportunity
- SumUp is an Equal Employment Opportunity employer, actively seeking and embracing diversity. Hiring and employment decisions are not made based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age, or any other basis protected by applicable laws or prohibited by company policy. The company is committed to creating a safe and respectful workplace where harassment is strictly prohibited.