I'm a senior software developer with over 20 years of experience in backend development, DevOps, system administration, and open-source technologies. My expertise lies in building scalable web applications, automating processes, and integrating modern AI tools into real-world solutions.
- Languages: Python, PHP, JavaScript, Bash, SQL, Perl
- Frameworks: Django, Django REST, Flask, FastAPI, Symfony, Laravel
- CMS & eCommerce: WordPress (custom themes & plugins), Magento, Joomla
- DevOps & Infra: Docker, Docker Compose, SWAG (Secure Web Application Gateway), WireGuard, Uvicorn, Apache, Nginx, Portainer
- Databases: PostgreSQL, MySQL, SQLite
- Frontend: HTML/CSS (responsive), React, jQuery
- AI & Automation: OpenAI APIs, LLM fine-tuning, LangChain, local model deployment
- Cloud: AWS (EC2, S3), custom self-hosted stacks
- OS & Servers: Linux (20+ years), Windows 11 with WSL2, macOS
- Custom CMS & Platforms: Built enterprise-grade CMS platforms with WordPress and Symfony; developed and maintained e-commerce sites with Magento
- System Administration: Managed Linux servers, high-availability Nginx/Apache environments, and automated workflows with scripting
- AI & NLP: Integrated large language models for automation and internal tools; experience fine-tuning and deploying LLMs for practical use cases
- Data Handling: Built ETL pipelines and catalog integrations using Python and shell scripts to process and normalize supplier data
- Versioning & Deployment: Git workflows, CI/CD setup, multi-environment deployment strategies using Docker and Compose
- Performance Optimization: Improved load times, database performance, and SEO across multiple high-traffic portals
- Self-hosted document automation using Paperless-ngx + GPT
- AI-powered Notion integrations for task parsing and smart search
- SSH session manager app for Ubuntu with GTK and Python
- Lightweight Flask API for Chinese lunar calendar and festival calculations
- Personal VPN server with dynamic DNS and WireGuard-UI
- Visual Niko-Niko calendar with Flask backend and reactive UI