Senior Java Software Engineer – banking industry

Groupe SII

📍 Warsaw, Masovian Voivodeship, Poland 💼 Full-time 🕒 Posted February 19, 2026

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Job Description

 We are looking for an experienced Java Developer to join our project in the banking industry.
 As a Team member, you will be involved in risk remediation initiatives in the existing platforms.
 Join us!
 Your role Working on existing applications in the context of technology updates
 Updating Java versions, libraries
 Patching security vulnerabilities
 Introducing DevOps improvements, which involve small changes to the code
 Adjusting various applications to upgraded database versions (different databases in different applications)
 Upgrading UI stack (React or Angular – depending on the application)
 Your skills Minimum of 7 years of Java programming experience with proficiency in object-oriented design principles
 Knowledge of distributed data storage systems and continuous integration and deployment (CI/CD) processes
 Proficiency in frameworks for creating web applications, including Spri...
            

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Job Details

Location Warsaw, Masovian Voivodeship
Job Type Full-time
Category Computer Occupations
Posted Date February 19, 2026
Application Deadline March 31, 2026