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Software Engineer (Java) - (m/f/d)

Technologie
Unzer
Berlin, DeutschlandVor 1 WocheBis 27.12.2026
VollzeitHybrid

Stellenbeschreibung

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What your work will look like: - 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
What you need to be successful in this role: - 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); 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)
What’s next?
  • 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.
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Keywords
JavaSpring BootMicroservicesKafkaSQLDistributed systemsDomain-Driven DesignObservabilityOpenTelemetryAI coding assistantsGitAutomated testingCloud computingData structuresAlgorithmsCloud-basedNoSQLAvroCoralogixClaude Code

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