Java Cloud Developer (f/m/x)

• Java
• Spring
• Hibernate
• SQL
• Docker
• Polski (B2)
• Angielski (B2)
• NoSQL
• At least 4 years of hands-on experience in Java development
• Strong knowledge of frameworks and tools: Spring (Boot, Data, Cloud), JUnit, Spock, JPA, Hibernate
• Solid experience with PostgreSQL, SQL, NoSQL databases, and Redis
• Practical experience with cloud and containerization technologies (Azure, Kubernetes, Docker)
• Experience building and integrating REST/SOAP APIs, including Swagger/OpenAPI documentation
• Familiarity with CI/CD and development tools: Jenkins, SonarQube, Git, Gradle
• Very good communication skills in both English and Polish
• Residing in Poland required

Nice-to-have requirements

• Knowledge of TDD/BDD practices, e.g., Spock, Mockito, Cucumber
• Basic understanding of Domain-Driven Design (DDD)
• Familiarity with service mesh architectures
• Design and implement new features and system improvements
• Ensure software quality through testing and validation against requirements
• Diagnose, troubleshoot, and resolve technical issues
• Collaborate with cross-functional teams in an agile environment
• Participate in team ceremonies and contribute to technical discussions
• Prepare and maintain technical documentation

Opis oferty

We are looking for an experienced Java Cloud Developer to join a dynamic team delivering modern digital solutions for business clients. You will be part of a product area focused on virtual card services and digital platforms that support innovative business models such as Click & Collect and fleet management solutions.

Those systems enable end-to-end management of payments and communication with business customers, including fueling, car wash services, invoicing, and card/account management. The portfolio spans both mobile and web applications, as well as external APIs (e.g., Payment-as-a-Service), serving primarily Scandinavian and Baltic markets. You’ll work across a mix of greenfield development and enhancements to existing systems.

• Start ASAP
• Internal training center
• Jubilee rewards
• Profit sharing
• Sport & hobby communities
• Breakfast, drinks and fresh fruits in the office
• Wide portfolio of technologies
• Solid financial situation
• Comfortable and well-equipped offices
• Invoice kiosk
• Medical care
• Insurance
• Sport cards
• Language courses
• Refferal programs
• Welcome packs and other occasional gifts
• Passion Sponsorship program
• Regular integration events and trips
• Contracts with the biggest brands
• Diverse portfolio of clients
• Flexible forms of employment

Since 2006 on the market, 7 500+ experts, PLN 2,1 billion revenue, 13 timesGreat Place to Work title – get to know Sii,the leading technologyconsulting, digitaltransformation, engineering, and business services vendor in Poland . We implementprojects for over 200 clients from all over the world. Our mission is toidentify and promote the best Workers – Power People. Learn more at sii.pl .

Sii ensuresthat all employment-related decisions are made solely on the basis ofqualifications and competencies. We are committed to equal treatment of allindividuals, regardless of any protected characteristics, and promoting a diverseand inclusive work environment.