Software Engineer (Java)

• The Foundations group is focused on delivering core platform software products. Starting from gateways, through merchant onboarding and offboarding reaching the billing systems and debtor management solutions of Unzer
• Design, build, test, and operate cloud-based microservices (Java/Spring Boot, Kafka)
• Write automated tests (unit, integration, and end-to-end) as an integral part of your daily work
• Contribute to product design by writing technical specifications – clear enough to
• Guide both engineers and AI agents
• Use AI-assisted development (coding agents, AI code review, spec-driven workflows)
• In your daily work and help us evolve how we use it
• Work with the Unzer Tech standards and processes and help us improve them
• Be actively involved in team and organizational knowledge-sharing

Benefits

• Flexible working hours
• A learning budget for personal development in addition to internal knowledge-sharing forums and best practice sharing. We want you to have the ability to learn something new every day!
• A fast-paced work environment with the creative freedom to contribute to Unzer’s future
• A hybrid work model allows you to keep work-life balance – you can work from home up to 80% of the time
• Excellent working atmosphere in ambitious, diverse, and agile teams

• You use them productively and critically review, test and own the code they produce
• Hands-on mentality
• Experience with observability tools such as Coralogix or OpenTelemetry
• 5+ years of experience with Java 21+ and Spring Boot
• Git-based workflows (feature branches, pull requests, code review)
• You diligently test (ideally test-first/TDD) and document your deliveries
• Experience with SQL databases (schema design, migrations); NoSQL is a plus
• Experience with microservices, event-driven messaging (Kafka, Avro) and
• Hands-on experience with AI coding assistants/agents (e.g. Claude Code, GitHub Copilot):
• Solid knowledge of data structures, algorithms, operating systems and distributed systems
• Experience in architecture design (e.g. Domain-Driven Design) and common design patterns
• Know-how in delivering software to the AWS cloud platform
• Frontend experience with Angular
• Experience with Docker, Kubernetes and GitOps (e.g. Argo CD)
• Experience building agentic workflows (MCP integrations, custom agent skills,
• Experience in regulated environments (payments, PCI-DSS, GDPR)
• AI steps in CI such as automated PR review)

• Does it sound exciting? - Apply with your CV in English. Please don’t shy away if you don’t meet all the requirements! We’re looking forward to meeting you
• We will get back to you within 7 days of receiving your application
• The interview process includes a 30-minute intro call with a TA Partner, a 45-minute conversation with the Hiring Manager, and a technical interview with the team (60- 90 mins). Please note the process might alter depending on our team’s availability