Production Down?

I'm Fichil.

Expert Backend & DevOps Troubleshooter

I specialize in resolving mission-critical production issues: from Nginx 502s and API timeouts to complex SAP/WMS integrations.

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What I Solve

I focus on real-world reliability. If your system is failing under pressure, I provide:

  • Infrastructure Rescue: Nginx, Linux kernel tuning, and VPS recovery.
  • Backend Debugging: Java/Spring production profiling and API error tracing.
  • Cloud Automation: Fixing broken Docker/CI/CD pipelines.
  • Enterprise Bridge: SAP, WMS, and TMS integration troubleshooting.
Technical Arsenal
  • Linux / Nginx Tuning
  • Java / Spring Boot
  • Docker / Kubernetes
  • Enterprise API Integration
  • Performance Profiling

Case Studies

Restoring VPS Reachability
Nginx Linux Security
Restoring VPS Reachability
Fixed a critical 'Connection Refused' error by reconfiguring Nginx listeners and firewall chains.
Enterprise API Integration
SAP API WMS
Enterprise API Integration
Resolved a multi-day SAP/WMS synchronization failure in a production warehouse environment.

Urgent Support

Email me with your system logs or error descriptions. I usually respond within 4 hours for production-stop issues.