
System Developer with 6 years of professional experience in Japan, specializing in Java-based back-end maintenance, front-end support, SQL-driven systems, and documentation. Experienced in manual testing, production support, and working within Japanese corporate environments.
Databases: SQL – IBM DB2 and Oracle Database (working-level knowledge: queries, data analysis, basic maintenance)
Programming: Java (basic development, debugging, system maintenance)
Frameworks: Java EE (Servlets, JSP), Spring (basic knowledge), WFS (company-specific Java web framework
Testing: Manual testing, regression testing, batch testing, test case execution
Documentation: System specifications, User manuals, Operational documents
Support: Production issue investigation, data troubleshooting