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November 4, 2026
Senior Full-Stack Developer (Java & React)
Senior • On-site
Warsaw, Poland
Quick Facts
Senior Full-Stack Developer (Java & React)
Description
Implement new or modify existing applications and services for both backend and frontend. Write unit and integration tests, maintain high software quality (functionality, performance, reliability), and document solutions while analyzing possible approaches and participating in project work.
Responsibilities
- Implement new applications/services or modify existing ones
- Create unit and integration tests
- Ensure high quality software (functionality, performance, reliability)
- Document implemented solutions
- Analyze potential solutions
- Participate in project work
- Design new solutions
Requirements
- Minimum 5 years of commercial experience in object-oriented programming
- Professional experience with Java SE 17 (17 or higher)
- Professional experience in a Frontend Developer role (React)
- Good knowledge of Spring Boot and/or Spring Integration
- Experience with relational databases
- Knowledge of tools: Git, Maven, Jira, Jenkins
- Knowledge of standards: SOAP, REST, XML, JSON
- Teamwork skills
- Analytical thinking
- University degree in Computer Science or related field
Benefits
- B2B contract
- Work location: client office 1x per week (Chmielna 89, Warsaw)
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