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Senior Java Developer
  • Gdańsk
Senior Java Developer
Gdańsk, Gdańsk, pomorskie, Polska
B2B.net S.A
29. 1. 2026
Informacje o stanowisku

You will join a project in the Fraud Management domain, focused on building systems for fraud detection and prevention.

The solutions process large volumes of data in near real-time, with a strong emphasis on high availability, performance, and scalability.

The project is based on microservices architecture and modern system integration patterns.

Senior Java Developer



Your responsibilities

  • Design, develop, and maintain Java-based backend applications
  • Design and implement near real-time data pipelines using Apache Kafka
  • Integrate systems using REST and SOAP web services
  • Collaborate with the development team in a Scrum/Agile environment
  • Participate in architecture design and ensure long-term maintainability of applications
  • Perform performance analysis, profiling, and optimization
  • Work closely with Product Owners and stakeholders to clarify and refine requirements
  • Ensure high code quality, performance, and system reliability
  • Create and maintain technical documentation

Our requirements

  • Strong experience with Java
  • Hands-on experience with Apache Kafka
  • Experience with system integrations using REST and/or SOAP
  • Experience with Spring Boot
  • Knowledge of microservices architecture
  • Experience with SQL databases, especially Oracle
  • Solid background in backend application development
  • Experience working in Scrum / Agile teams
  • Very good communication skills, including collaboration with Product Owners and stakeholders
  • Proactive approach to proposing technical solutions
  • Strong sense of ownership for code quality, performance, and maintainability
  • Ability to clearly document technical solutions
  • English - B2
  • Experience with Kubernetes
  • Familiarity with cloud environments, preferably AWS
  • Experience working on high-availability, high-throughput systems

 

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