Senior Java Developer/Analyst

Experis

📍 Warsaw, Masovian Voivodeship, Poland 💼 Contract 🕒 Posted June 23, 2026

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Job Description

Opis Pracy
On-site work from Warsaw (5 days per week from the Client's office) 
Full availability in the Polish time zone 
Polish language is required 
English: at least B2



TasksDesign and implementation of IT solutions based on analytical and technical documentation 
Review and improvement of analytical documentation 
Creation and maintenance of technical documentation 
Technical upgrades and modernization of an existing system (including migration to Java 17 and newer technologies like Spring Boot) 
Work with legacy code and monolithic architecture (Java 8-based system) 
Reverse engineering based on: existing source code, functional and technical documentation, documented business processes, system UI and database access 
Participation in transformation of a monolithic TMS system (POS terminal management) towards microservices architecture 
            
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Job Details

Location Warsaw, Masovian Voivodeship
Job Type Contract
Category Computer Occupations
Posted Date June 23, 2026
Application Deadline August 02, 2026