What I Can Help With

• Java/Spring Boot REST API expertise
  Hands-on experience across development, maintenance and integration of REST API.
• Performance & architecture optimization
  Reduce server load, and stabilize large applications.
• Legacy modernization
  Safe upgrades and refactoring without disrupting users or business flows.
• Enterprise reporting (Keikai)
  Advanced Excel-like reporting integrated directly into ZK applications.
• Consulting-level ownership
  Clean code, documentation, and long-term maintainability.