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Java Backend Developer
  • Warsaw
Java Backend Developer
Warszawa, Warsaw, Masovian Voivodeship, Polska
T-Mobile
24. 10. 2025
Informacje o stanowisku

technologies-expected :


  • Java
  • Spring Boot
  • Kafka
  • Kubernetes
  • Docker
  • GitLab
  • Jenkins
  • Maven
  • Gradle

technologies-optional :


  • Prometheus
  • Grafana

about-project :


  • Our system is one of the components in the chain that processes network configuration files.

responsibilities :


  • Design, build, and maintain scalable, high-performance backend applications
  • Work closely with cross-functional teams to define, develop, and deliver new features that ensure a seamless and responsive user experience
  • Develop and maintain APIs to support robust and efficient communication between microservices in a Kubernetes-based environment
  • Conduct code reviews, provide constructive feedback, and ensure adherence to coding standards and best practices

requirements-expected :


  • Minimum 5 years of experience in backend development
  • Strong focus on code quality – Clean Code principles, SOLID, unit and integration testing
  • Java 21, Spring Boot 3, Spring Web / REST API, Spring Security + OAuth2 / OIDC, JDBC / Spring Data JPA
  • Kafka – message production and consumption
  • Kubernetes – basics: deployments, configmaps, secrets
  • Helm – chart creation and management
  • Docker – application containerization
  • CI/CD pipelines – e.g., GitHub Actions, GitLab CI, Jenkins
  • Maven / Gradle – dependency management

offered :


  • Employment contract
  • Additional day off on the occasion of birthdays/namedays
  • Medical package and life insurance
  • Benefit platform - you choose what you benefit from
  • Access to training platforms to improve your knowledge
  • I know Talent - training or money for referring friends to work ?!
  • Besides, with us you can count on access to our products and services at preferential terms and benefits, which you will read about below

benefits :


  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • life insurance
  • flexible working time
  • corporate products and services at discounted prices
  • integration events
  • mobile phone available for private use
  • no dress code
  • parking space for employees
  • extra social benefits
  • sharing the costs of tickets to the movies, theater
  • holiday funds
  • birthday celebration
  • sharing the costs of a streaming platform subscription
  • employee referral program
  • charity initiatives
  • extra leave
  • Benefit Platform

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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