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About the Role
The Billing and Subscriptions team manages the billing engine, merchant wallet, and subscription experiences for millions of transactions across 37 markets. The team is expanding its billing capabilities to support new sales models, market expansions, and financial integrations, which is central to how small businesses experience SumUp.
Responsibilities
- Build and maintain backend services and frontend interfaces across billing, contracts, and merchant wallet products
- Contribute to refactoring key billing components to improve reliability, data security, and alignment with the payments platform
- Support the expansion of billing and wallet capabilities into new markets, ensuring localisation requirements are met
- Participate in weekly support rotation, handling customer queries and maintaining platform stability
- Collaborate with senior engineers and product managers to deliver features end-to-end, from implementation to production
Requirements
- Solid experience building full stack applications, with a backend focus
- Comfortable with Node.js or Go, open to other backend languages
- Comfortable working with relational databases (PostgreSQL, MySQL) and non-relational databases (DynamoDB, MongoDB, Redis)
- Practical frontend experience with React and Next.js
- Ability to write clean, typed code in TypeScript or JavaScript
- Strong written and spoken communication skills in English
- Ability to give and receive clear, constructive feedback
- Pragmatic approach to problem-solving
- Ability to make sensible trade-offs
- Ability to unblock self and others
- Ability to write clean, maintainable code
Skills
- Full stack application development
- Backend development
- Node.js
- Go
- Relational databases
- PostgreSQL
- MySQL
- Non-relational databases
- DynamoDB
- MongoDB
- Redis
- React
- Next.js
- TypeScript
- JavaScript
- Written communication
- Spoken communication
- Constructive feedback
- Problem-solving
- Pragmatic approach
- Clean code
- Maintainable code
Location
- Berlin, Germany (office-first)
Work Type
- Onsite
Experience Level
- Solid experience
Benefits
- Opportunity to work globally on large-scale fintech products
- Commitment to Diversity and Inclusion
- Annual L&D budget of €2000 for individual development
- Corporate pension scheme with up to 20% company match
- 28 days of paid leave plus public holidays and special leave days
- Urban Sports Club subsidy
- Kita placement assistance
- Subsidised office lunches
- 1-month sabbatical after 3 years of service (Break4me)
- Referral bonus
About the Company
- SumUp empowers small businesses globally with simple and affordable tools to thrive.
- Over 4 million businesses in 37 markets rely on SumUp for payments, finance, and customer relationships.
- The company has a diverse team of over 3,000 employees from over 90 nationalities.
- SumUp fosters inclusivity, a continuous learning culture, and a safe space for personal and professional growth.
Equal Opportunity
- SumUp is an Equal Employment Opportunity employer, actively seeking and embracing diversity.
- Hiring decisions are not based on race, color, religion, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age, or any other protected basis.
- The company is committed to creating a safe and respectful workplace where harassment is strictly prohibited.