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June 8, 2026

Java Developer z Kafką

Senior • Hybrid

120 - 130 PLN

Kraków, Poland

You will join a global team of Full Stack Developers working on an in-house application supporting electronic trading. The team works with modern technologies, a DevOps approach, and close collaboration with the business.

Currently, the team is focused on migrating the application from an on-premise environment to GCP. The application is responsible for position management and real-time data visualization.

You and your teammates are responsible for all aspects of delivering software to your users:

  • Development of new features.

  • Speaking to the product owner (traders) to understand new feature requirements.

  • Automating regression testing of new software.

  • Frequent deployment of multiple software packages to production.

  • Production availability – we collectively build and own the service.

  • Peer review of colleague’s changes.

  • Speak up and help shape how we do things better.

Required skills and experience:

  • Expertise of Java development, with at least 4 years of experience

  • Exposure to cloud technologies such as GCP and Terraform.

  • Familiar with TDD, continuous integration and delivery environment using Git/Gradle/Teamcity/Github

  • Experience with Apache Kafka and Kafka Streams

  • Fluent English (min. B2)

Nice to have skills and experience:

  • Experience with REST, messaging technologies and JVM performance tuning.

  • MongoDB

  • An interest in Equity or Equity Derivatives trading business

  • Trading or Risk analysis systems domain knowledge

  • A passion for software development outside of work through involvement in open source, working groups, meetups etc.