I'm Fichil.
Backend / DevOps / Enterprise Integration Engineer
I write down the problems I actually handle: Java backend fixes, logistics workflow changes, Nginx/Linux recovery, SAP/WMS/TMS integrations, and practical AI-assisted development.
Build. Debug. Ship.
Engineering Focus
This site is my public engineering notebook and portfolio. I use it to record problems I have solved, the checks that worked, and the tools I am building.
- Backend Engineering: Java, Spring, REST APIs, validation rules, SQL troubleshooting, and production defect analysis.
- Logistics Platforms: WMS, TMS, YMS, billing, carrier assignment, dispatch confirmation, proof of delivery, and SAP/ERP integration.
- DevOps Operations: Linux, Nginx, Docker, VPS deployment, HTTPS, GitHub Actions, and incident recovery.
- Open Source: Building Repo2AI to convert repositories into AI-ready context packs for ChatGPT, Claude, Cursor, and coding agents.
- AI Workflow: Using ChatGPT and Codex to speed up implementation while keeping design, testing, and release decisions under human review.
- Java / Spring / REST APIs
- MySQL / SQL troubleshooting
- Linux / Nginx / HTTPS
- Docker / GitHub Actions
- WMS / TMS / YMS / SAP integration
- Go / Repo2AI / AI-assisted development
Current Work
Nginx
Linux
HTTPS
VPS and Nginx Recovery
A real recovery note covering DNS, ports, Nginx, Hugo build output, HTTPS, and production verification for fichil.com.
Go
AI Tools
Open Source
Repo2AI
An open-source CLI that turns repositories into structured context files for ChatGPT, Claude, Cursor, and coding agents.
Java
SAP
WMS/TMS
Enterprise Logistics Integrations
Notes from WMS/TMS/YMS work: carrier dispatch, billing, route validation, fee confirmation, and SAP/ERP interface troubleshooting.
Contact
For collaboration, technical discussions, open-source feedback, or production troubleshooting, send a clear problem statement with logs, screenshots, data samples, or a repository link.