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Sii Poland

Java Developer - CC Digital (f/m/x)

EU

October 17, 2026 at 12:48 AM

✨ AI summary

Location

  • Gdańsk, Pomorskie, Poland

Programming Languages

  • Java

Frameworks

  • Spring Boot
  • Spring MVC
  • Hibernate/JPA

Cloud Services

  • AWS
  • Azure
  • GCP

Databases

  • Oracle
  • PostgreSQL
  • MongoDB

Experience Level

  • Minimum 5 years of commercial programming experience in Java
Sii is a place where experienced Java Developers execute global projects, working with modern technologies, microservices architecture and cloud. Our Digital Competence Center is more than 1500 experts who develop enterprise solutions for the following industries: finance, telco,e-commerce, manufacturing, retail or healthcare.

If you're looking for a stable environment, projects with real impact and opportunities for continuous development, there's a place for you at Sii. Check out what we can offer you.

Your tasks

  • Creation, implementation and testing of software using modern technologies
  • Adding new functionalities
  • Troubleshooting software problems (troubleshooting)
  • Preparing technical documentation
  • Ensuring code quality and adherence to programming standards in projects
  • Collaborating with other team members to better understand the problem
  • Proposing new optimization options and changes

Requirements

  • Minimum 5 years of commercial programming experience in Java
  • Practical knowledge of Spring frameworks (Spring Boot, Spring MVC) and Hibernate/JPA
  • Experience working with microservices architecture and tools: Docker, Kubernetes, Kafka
  • Knowledge of relational and non-relational databases (e.g. Oracle, PostgreSQL, MongoDB)
  • Experience in developing and integrating web APIs (REST, GraphQL)
  • Ability to apply good engineering practices: SOLID, unit testing (JUnit), code review, clean code
  • Communication skills, openness and commitment to teamwork
  • Very good oral and written English language skills

Nice to have

  • Cloud experience: AWS, Azure or GCP
  • Knowledge of frontend technologies (e.g. Angular, React)

Job no. 260126-GW12X

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.