Own rendering and engine-system challenges for an AAA co-development project, debugging Unreal Engine 5 code, optimizing graphics performance and memory, and collaborating across disciplines to deliver reliable visual systems.
Software Engineer (Java) - (m/f/d)
📜 Description
- Design, build, test, and operate cloud-based microservices using Java, Spring Boot, and Kafka.
- Write unit, integration, and end-to-end automated tests as part of daily development.
- Contribute to product design by writing technical specifications for engineers and AI agents.
- Use AI-assisted development tools and help evolve their use across coding, reviews, and workflows.
- Follow and improve engineering standards and processes, and share knowledge across the team.
🛠️ Requirements
- 5+ years of experience with Java 21+ and Spring Boot.
- Solid knowledge of data structures, algorithms, operating systems, and distributed systems.
- Experience with SQL databases, schema design, migrations, microservices, Kafka, Avro, and Git-based workflows.
- Experience with architecture design, such as Domain-Driven Design, and common design patterns.
- Experience with observability tools such as Coralogix or OpenTelemetry.
- Hands-on experience with AI coding assistants or agents, including critically reviewing, testing, and owning generated code.
- Diligent testing and documentation practices; test-first or TDD experience is preferred.
- Nice to have: Angular, AWS, Docker, Kubernetes, GitOps, agentic workflows, or experience in regulated environments such as payments, PCI-DSS, or GDPR.
✨ Benefits
- More than a workplace. A place to grow. 🌍
- We set high expectations and give you the flexibility, learning opportunities and practical support to do your best work, grow your impact
- 🏡 Flexibility that works
- Combine focused time at home with connection and collaboration in the office. Our hybrid setup includes two office days per week.
- 🚲 Your commute, your choice
- Choose the mobility benefit that works for you: bike leasing or a Deutschlandticket.
- 🏖️ Work from anywhere in the EU
- Change your perspective and work from another EU country for up to 15 days per year.
Full job description
What your work will look like:
- 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
What you need to be successful in this role:
- Solid knowledge of data structures, algorithms, operating systems and distributed systems
- Experience with SQL databases (schema design, migrations); NoSQL is a plus
- Experience with microservices, event-driven messaging (Kafka, Avro) and
Git-based workflows (feature branches, pull requests, code review)
- You diligently test (ideally test-first/TDD) and document your deliveries
- Experience in architecture design (e.g. Domain-Driven Design) and common design patterns
- Experience with observability tools such as Coralogix or OpenTelemetry
- Hands-on experience with AI coding assistants/agents (e.g. Claude Code, GitHub Copilot):
you use them productively and critically review, test and own the code they produce
- Hands-on mentality
Nice to have:
- Frontend experience with Angular
- Know-how in delivering software to the AWS cloud platform
- Experience with Docker, Kubernetes and GitOps (e.g. Argo CD)
- Experience building agentic workflows (MCP integrations, custom agent skills,
AI steps in CI such as automated PR review)
- Experience in regulated environments (payments, PCI-DSS, GDPR)
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