Senior Java Developer/Analyst

• 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

Tasks

• Design 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
• Defining, designing and implementing automated test cases (including regression testing)
• Identification of areas for test automation based on code and documentation
• Work with system security improvements and vulnerability mitigation
• Close cooperation with operational and development teams (~50% analytical work / ~50% development)
• Working in Scrum (2-week sprints) in a small development team
• Supporting system evolution and rollout to new markets (e.g. Germany)

Requirements

• Very good knowledge of Java (8+) and object-oriented programming (experience with Java 17 is a plus)
• At least 5+ years of experience (Regular/Senior level)
• Experience in independent design, implementation, documentation and testing of application components
• Strong analytical skills and ability to work with legacy systems
• Very good practical knowledge of: Spring / Spring Boot, Hibernate / JPA, JEE, RESTful API design, Relational databases (especially Oracle)
• Practical experience with: message queues (RabbitMQ), system integration and distributed systems, application servers (JBoss / WildFly), development tools: Maven, Git, GitLab, GitLab CI/CD, Jenkins, Nexus, Jira
• Docker

Nice to have

• Experience with Linux environments
• Knowledge of code scanning tools (Fortify, Sonatype)
• Experience with AI-supported development tools (Codex)

Offer

• Multisport card
• Private healthcare
• Access to an e-learning platform
• Group life insurance