I help companies fix backend & DevOps issues

Hi, I'm Fichil. I specialize in solving real-world backend problems:

• Fix API errors / timeouts (Java, Spring, Dubbo)
• Deploy & debug servers (Linux, Nginx, Docker)
• System integration (SAP / WMS / TMS)

Recent Work

• Resolved async timeout issue in enterprise system
• Integrated SAP with transport management system
• Deployed production server with Nginx + SSL

Contact

Email: fichilzhang@gmail.com