Senior Java Backend Developer | #14174 Senior Java Backend Developer (m/w/d)

Constaff GmbH

Köln, Nordrhein-Westfalen, Deutschland
Published Mar 19, 2026
Full-time
Fixed-term

Job Summary

As a Senior Java Backend Developer, you will play a pivotal role in developing scalable microservices-based solutions within the logistics sector. Your day-to-day responsibilities involve the implementation and continuous evolution of backend systems, managing deployments, and ensuring stable operations through monitoring, performance optimization, and IT security management. While the focus is heavily on backend architecture, you may occasionally contribute to web frontend development. This position is ideal for professionals who thrive in agile environments and enjoy working with modern DevOps toolchains. What makes this role unique is the opportunity to work on mission-critical logistics projects for well-known clients while being supported by Constaff’s transparent and personal corporate culture. You will benefit from flexible working arrangements, attractive compensation, and a structured career development path within a collaborative team environment.

Required Skills

Education

Not specified

Experience

  • Professional experience in developing scalable solutions based on microservices
  • Extensive experience in backend development using Java and Spring Boot
  • Proven experience in deploying and operating Java applications in CI/CD and DevOps environments
  • Experience with Event-Driven Architecture specifically using Kafka
  • Professional experience working within agile software development methodologies
  • Experience in system monitoring, performance optimization, and IT security

Languages

German (Fluent)English (Basic)

Additional

  • The role is a full-time, fixed-term contract (BEFRISTET). Applicants should provide their earliest possible start date and salary expectations.