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Senior Java Developer

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Onsite

Senior Java Developer

B2Bnetwork

Senior Java Developer

Skills

SQL QueriesDockerReactJavaMicroservicesSpring BootKafkaBitbucketJenkinsAIGitHubKubernetesJavascript

1 month ago

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Important information


Location:

Warsaw, Poland

Work mode:

Onsite

Published on:

18 September 2026

What they need


We are looking for a skilled and experienced Senior Java Developer to join one of our teams in Cards Technology. As the Java Developer, you will play a critical role in the design, development and maintenance of Java applications that support our business services.

At our company, we recognize that the world is evolving rapidly, and we aim to stay ahead of the curve. We are dedicated to providing innovative solutions for our customers. Our agile environment fosters experimentation and growth, and we value your unique ideas and background. Join us, and you'll be part of a supportive community with the opportunity to make a meaningful contribution.

At the Cards Domain, we are deeply committed to providing the financial solutions of tomorrow to our customers.

About this opportunity

Examples of what you could be doing:

  • 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

Your technical skills and experience:

  • Minimum 5 years of Java Software Development experience.
  • Practical knowledge of microservices architecture, clean code and continuous integration.
  • Knowledge and hands on experience of Java (8+), Spring Framework, Spring Boot, SQL
  • Good understanding of REST API design
  • Familiarize with CI/CD tools like Bitbucket, Jenkins
  • Agile/Scrum/SAFe methodology experience

Nice-to-have knowledge and experience

  • Experience in C++ development
  • Hands-on experience with AI-assisted development tools (e.g., GitHub Copilot) is a significant advantage.
  • Familiarity with test automation concepts, tools, and best practices
  • Kafka
  • Front-end development experience with at least one of the following: JavaScript, Angular or React
  • Spring WebFlux
  • Docker, Kubernetes
  • Experience in the financial industry

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