Software Engineer · AI Systems · Developer Infrastructure
I’m a software engineer focused on building reliable, scalable software at the intersection of AI, developer tooling, and backend infrastructure.
My experience spans full-stack development, backend systems, cloud infrastructure, machine learning, and AI-powered developer tools. I enjoy working on problems where the solution requires both strong engineering fundamentals and systems-level thinking.
Recently, I’ve been focused on AI agents and developer infrastructure—designing systems that allow AI agents to reason, collaborate, retain context, execute workflows, and operate reliably in real-world software environments.
I care deeply about software architecture and maintainability. My engineering approach is simple: understand the system, reduce unnecessary complexity, build clear abstractions, and optimize for the humans who have to maintain the software.
- AI agents & agent runtimes
- Developer tools & coding agents
- Backend & distributed systems
- Full-stack application development
- Cloud infrastructure & DevOps
- Machine learning & applied AI
- Software architecture & system design
Languages: PHP, Ruby, JavaScript/TypeScript, Python, C#, SQL
Frameworks: Laravel, Ruby on Rails, Vue, Nuxt, Node.js
Infrastructure: AWS, Docker, Linux, Cloudflare
AI/ML: LLMs, RAG, OCR, speech recognition, local inference
I’m particularly interested in building the infrastructure that makes AI-powered software practical, reliable, and scalable.
Here are some of the things I'm most proud of right now:
| term2 A terminal-based AI assistant, think of Claude Code and Warp getting married and having a child TypeScript |
chat Lightweight AI chat frontend — because OpenWebUI feels too heavy TypeScript |
ocr Privacy-first, fully browser-based OCR — no data leaves your device TypeScript |
| code-rag Semantic code search MCP server for smarter coding agents Python |
claude-skills My growing collection of Claude skills & tools Claude Skills |
→ Check out my pinned repositories below for live demos, setups & code!
I also build lightweight, practical web tools that solve everyday developer pain points — all 100% client-side, no backend needed.
| Tool | Description | Tech Stack | Live Demo | Repo |
|---|---|---|---|---|
| Markdown Preview | Real-time Markdown editor with note management, live preview & local persistence | React 19, Vite, Marked, DOMPurify | Try it → | qduc/md-preview |
| JSON Visualizer | Interactive JSON tree viewer, formatter, minifier, escaper + validation feedback | Vanilla JS, HTML/CSS | Try it → | qduc/json-visualizer |
- Website/Blog → qduc.me
- Email → duc@qduc.me
- Open to: freelance, full-time roles in AI + full-stack, DevOps, or interesting open-source collabs
Thanks for visiting! Feel free to star ⭐ repos you like or open issues/PRs — I appreciate every bit of feedback.