Backend Engineer (Java / Spring) based in Osaka, Japan.
Experienced in enterprise backend systems, API design, and system integration.
Previously involved in startup environments, handling backend systems, cloud infrastructure, and team leadership.
- 2026.04 ~ Present Backend System Engineer @ Upload Inc. (Java, Spring Boot)
- 2024.07 ~ 2025.12 Backend / Team Lead @ NeuroCircuit (NestJS, AWS, Flutter)
- 2022.11 ~ 2023.11 Backend Engineer @ Metanet Digital / Global (Java, Spring, SAP)
| Certification / Skill | Issued by | Status / Date |
|---|---|---|
Java SE 11 Developer (Silver)
|
Oracle | Passed (Feb 2026) |
| JLPT N1 (Japanese) | Japan Foundation | Target: July 2026 |
| JLPT N2 (Japanese) | Japan Foundation | Passed (2014) |
| AWS Solutions Architect (SAA) | Amazon (AWS) | In Progress |