Senior Backend Engineer - Fiscalization

SumUp; Berlin; Vor Ort; EUR 95.000 - 130.000; Vollzeit

Benefits dieser Stelle

Annual Learning & Development budget

Virtual stock ownership program

Corporate pension scheme

28 days paid leave + 1 for birthday

Subsidized office lunches

Babbel language platform subscription

Kita placement assistance

Subsidized office lunches

Babbel language platform subscription

Zusammenfassung

A leading payment solutions provider in Berlin is looking for a Senior Backend Engineer to develop fiscal compliance solutions across Europe. This role involves building secure backend systems, collaborating with cross-functional teams, and working with third-party services for receipt fiscalization. Ideal candidates should have over 5 years of backend engineering experience, with a strong grasp of Java and/or Kotlin, AWS, and Kubernetes. Join a dynamic team and enjoy great benefits including a learning budget and corporate pension scheme.

Qualifikationen

• 5+ years experience in backend engineering with Java and/or Kotlin.
• Strong understanding of fundamental system architecture and design principles.
• Experience with distributed and fault-tolerant systems.
• User-level experience working with AWS and Kubernetes.
• Good knowledge of Kafka, Postgres, and CQRS.

Aufgaben

• Build and maintain fiscal compliance solutions for SumUp's international expansion.
• Develop integrations with third‑party services for receipt fiscalization.
• Navigate SumUp's complex POS ecosystem and master fiscalization frameworks.
• Collaborate with squad members and stakeholders in a hybrid environment.

Kenntnisse

Java

Kotlin

AWS

Kubernetes

Kafka

Postgres

CQRS

Tools

AWS

Kubernetes

Kafka

PostgreSQL

CQRS

Jobbeschreibung

About The Team

SumUp’s Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow. It offers a wide range of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools.

Our Fiscalization team will accelerate making the following countries fiscally compliant: Italy, Sweden, Norway, Belgium, Austria, and many other European countries. They will also start building the path for integrating with third parties and fiscalizing receipts.

About The Role

As a Senior Backend Engineer, you’ll collaborate with a dynamic, cross‑functional team of Product Managers, Product Designers, Engineering Managers, and fellow engineers. 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 is also an onsite role based in Berlin.

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.

You’ll thrive in this role if:

• 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 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, and CQRS.

Why you should join SumUp

• A dedicated annual Learning & Development budget for attending conferences and/or advancing your career through further education.
• Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success.
• A corporate pension scheme.
• 28 days paid leave + 1 for birthday.
• You’ll attend global offsites and/or hackathons.
• You'd enjoy other great benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidized office lunches and other location-tailored benefits, Babbel language platform subscription and more!

Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.