As a member of Web Applications Development Department inside Hellenic Army IT Support Center (H.A.I.S.C), during my mandatory military service• Conducted technical analysis and designed scalable software solutions• Developed backend services using Java Spring Boot and optimized database performance• Trained new team members and authored comprehensive documentation

As a member of Electrical Equipment and Instrumentation Maintenance Department• Identified and verified Bill of Materials (BOM) for equipment• Encoded materials and spare parts into the SAP information system• Procured materials and spare parts for the instrument workshop• Gained hands-on experience with PLC systems

As a member of Public Sector Department• Contributed to the Perseus project for automating social security services and enhancing pension fund management• Implemented pages for generating test data, using Java Enterprise Edition and Java Server Faces