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Java Developer with Kafka (f/m/x)
  • Gdynia
Java Developer with Kafka (f/m/x)
Gdynia, Gdynia, Pomeranian Voivodeship, Polska
Sii Sp. z o.o.
22. 1. 2026
Informacje o stanowisku

technologies-expected :


  • Java
  • Apache Kafka
  • Microservices
  • Spring Boot
  • SQL
  • REST
  • JavaScript/ Angular/React

about-project :


  • We are looking for a skilled and experienced Java Developer to join one of our teams in Cards Technology. At the Cards Domain, we are deeply committed to providing the financial solutions of tomorrow to our customers. You will play a critical role in the design, development, and maintenance of Java applications that support our business services. The team is based in Gdańsk/Gdynia, and we work in hybrid mode 2-3 times a week in the office.

responsibilities :


  • Designing, developing, and maintaining Java applications
  • Collaborating within agile team and ART
  • Working with various internal and external stakeholders
  • Troubleshooting and resolving issues in existing applications
  • Optimizing application performance and ensuring code quality
  • Creating technical documentation for developed functionalities

requirements-expected :


  • Minimum 4 years of Java Software Development experience
  • Practical knowledge of microservices architecture, clean code and continuous integration
  • Knowledge and hands-on experience of Spring Framework, Spring Boot, Kafka, SQL
  • Good understanding of REST API design
  • Front-end development experience with at least one of the following: JavaScript, Angular or React
  • Familiarize with CI/CD tools like Bitbucket, Jenkins
  • Fluent English
  • Fluent Polish required
  • Residing in Poland required

offered :


  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

  • Praca Gdynia
  • Gdynia - Oferty pracy w okolicznych lokalizacjach


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