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Zalando Lounge Logo Zalando Lounge · IT - Software Development

Senior Software Engineer - Backend

Germany, Ansbach · Job Posted January 19, 2026
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Job Description

As a software engineer in one of our core product teams, you’ll help shape the modern evolution of our technology. We’re building scalable, high performance software that powers thousands of brands and retailers across Europe. You’ll contribute to a growing ecosystem designed for resilience, speed and customer impact.

Job Responsibility

  • Design & Develop: Architect, build, and maintain clean, efficient, and reusable code using either Java or Python. Both are supported and strong proficiency in one is expected
  • Problem Solve: Take a proactive approach by suggesting, researching, and implementing solutions to complex technical challenges
  • Collaborate: Work closely with Product Management, Frontend, and Platform teams to design robust APIs and backend services. You will translate business problems into scalable technical solutions
  • Own Your Work: Take full ownership of the services you build, including writing comprehensive unit and integration tests to ensure quality and long term maintainability
  • Innovate & Improve: Always look for opportunities to improve systems, whether it is performance, cost efficiency, architecture, or developer experience. Your technical insight and pragmatism will be key
  • Align & Lead: Act as a technical leader within your team and on cross team projects, helping to define service boundaries, ensure quality, and deliver reliable solutions

Requirements

  • Proven ability and experience building scalable backend systems using either Java or Python
  • Strong experience with Java (JDK 21 or newer) or Python (3.11 or newer)
  • Experience with backend frameworks such as Spring Boot (Java) or Django/Flask (Python)
  • Experience with relational databases such as PostgreSQL or MySQL and NoSQL databases such as DynamoDB or MongoDB
  • Strong knowledge of REST API design, OpenAPI, and optionally SOAP
  • Familiarity with event and streaming systems, including technologies like Amazon SQS and Amazon Kinesis
  • Good understanding of AWS services such as Lambda, EC2, S3, and OpenSearch
  • Proficient with containerisation tools such as Docker, and local cloud emulation tools such as LocalStack
  • Experience with CI/CD and GitOps using tools like GitLab, Bitbucket, GitHub, and Argo CD
  • Unit and component testing: Java: experienced with JUnit 5 for backend test coverage
  • Python: experienced with pytest for backend logic and component
  • End to end testing: Java: familiar with E2E test frameworks such as Cucumber for service and integration testing
  • Python: experienced with Radish or Behave for validating backend workflows
  • You have a proactive approach, constantly suggesting and finding solutions
  • Your creativity and attention to detail drive you to improve everything you touch
  • You have a very good command of English (written and spoken)

What we offer

  • Employee shares program
  • 40% off fashion and beauty products sold and shipped by Zalando, 30% off Lounge by Zalando, discounts from external partners
  • 2 paid volunteering days a year
  • Hybrid working model - work where it works for you within Germany or the UK, with occasional office attendance required for moments that matter
  • Work from abroad for up to 30 working days a year
  • 27 days of vacation a year to start for full-time employees
  • Relocation assistance available (subject to prior agreement)
  • Family services, including counseling and support
  • Health and wellbeing options (including Wellhub, formerly Gympass)
  • Mental health support and coaching available
  • Drive your development with our training offerings and biannual peer-to-peer review
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