Senior Backend Engineer - Fiscalization

As a Senior Backend Engineer, you'll collaborate with a dynamic, cross-functional team of Product Managers, Product Designers, Engineering Managers, and fellow engineers.

About the role

You will be working on secure backend systems to ensure our SumUp's Point of Sale (POS) products are compliant in the different countries in our roadmap. Furthermore, you will work with the Fiscalization squad to understand the challenge in each market to design a unique solution to delivery.

You're a developer who values user-centric design, precision, and seamless collaboration. You bring structure to communication and thrive in a cross-functional environment.

This will be B2B role for our team in Warsaw.

What you'll do

• Build and maintain fiscal compliance solutions to enable SumUp's expansion across Italy, Sweden, Norway, Belgium, Austria, and other European markets.
• Develop integrations with third-party services for receipt fiscalization and regulatory reporting systems.
• Navigate SumUp's complex POS ecosystem and master fiscalization frameworks across multiple jurisdictions.
• Collaborate with distributed squad members and stakeholders across 5+ cities in a hybrid environment.

Do you have experience in PostgreSQL?, * You have 5+ years experience in backend engineering with Java and/or Kotlin.

• You have a strong understanding of fundamental system architecture, design principles, data modeling, and API design.
• You have a strong experience with distributed and fault-tolerant systems.
• You have user-level experience working with AWS and Kubernetes.
• You have good knowledge of Kafka, Postgres, & CQRS.

Opportunity to work , from our vibrant Warsaw office with inspiring art-filled lounges and a skyline terrace in the Mennica Legacy Tower.

Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced

Enrolment onto our VSOP program: you will own a stake in SumUp's future success

Fitness support: work out on-site at our gym or explore the city using the Multisport Card, subsidised by SumUp for access to sports facilities across Warsaw

Commitment to well-being: access health insurance coverage for you and your family, plus life insurance to further protect your peace of mind

PPK (Employee Capital Plan): grow your savings with joint contributions from SumUp and the State.

️ Generous time off: enjoy 26 days of paid leave plus public holidays and special leave days Break4me: 1-month sabbatical after 3 years of service

Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team