Senior Backend Engineer
SumUpWarsaw, Masovian Voivodeship, Poland
Posted November 4, 2025
Full Time
About the Company
SumUpās Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow.
Job Description
Join our Fiscalization team to work on secure backend systems and ensure our SumUpās Point of Sale (POS) products are compliant in different countries. Collaborate with a dynamic team to design and deliver unique solutions for each market.
Requirements
- 5+ years experience in backend engineering with Java and/or Kotlin
- Strong understanding of fundamental system architecture, design principles, data modeling, and API design
- Experience with distributed and fault-tolerant systems
- User-level experience working with AWS and Kubernetes
- Good knowledge of Kafka & Postgres
Benefits
- Generous time off
- PPK (Employee Capital Plan)
- Health insurance coverage
- Life insurance
- VSOP program
- Fitness support
- Referral Bonus
- Break4me: 1-month sabbatical after 3 years of service