Hi, I'm HarryFull-stack Developer
I design, build and ship full-stack web products — from clean React interfaces to typed APIs, Docker deployments and AI-powered features.
Full-stack
Frontend to infrastructure
TypeScript
First language of choice
1 live
Product in production
About
Engineer who ships end to end
I enjoy owning a product from the first sketch to production — and keeping it running smoothly after launch.
Who I am
I'm Dinh Phuc Khang, known as Harry. I build full-stack web apps with TypeScript, care about clean architecture, and like turning messy ideas into simple, reliable products.
Based in
Vietnam
Open to remote work (GMT+7)
What I do
Frontend
Fast, accessible React and Next.js interfaces.
Backend
Typed APIs, auth and solid data models.
DevOps
Docker, CI/CD and self-hosted servers.
AI
LLM features and model routing in real products.
Quick contact
Tech stack
Tools I use every day
A practical, modern toolkit for building and running web products.
Frontend
- React
- Next.js
- TypeScript
- Tailwind CSS
- Vite
Backend
- Node.js
- Hono
- REST APIs
- PostgreSQL
- Zod
DevOps
- Docker
- GitLab CI
- Nginx
- Linux VPS
- Cloudflare
AI
- LLM APIs
- LiteLLM
- Prompt design
- AI agents
- Model routing
Projects
Selected work
Real products and infrastructure I designed, built and operate.
EngliTutor
AI English tutor for workplace conversations
A production web app where learners practice real conversations with an AI tutor, get feedback in Vietnamese and track their progress across speaking, listening, reading and writing.
- Marketing site and learner workspace
- Typed API with auth, docs and admin tools
- Dockerized CI/CD to a self-managed VPS
- React
- TypeScript
- Hono
- Docker
- GitLab CI
- LLM
AI Model Router
Self-hosted LLM gateway that routes requests by task — planning, coding, testing, review — with automatic fallbacks between providers.
- LiteLLM
- Python
- Docker
Self-hosted Infrastructure
A small VPS platform with reverse proxy, TLS, container networks and CI deploys running several apps side by side.
- Nginx
- Docker
- Linux
Process
How I work
A simple, transparent workflow from idea to production.
- 01
Understand
Clarify goals, users and constraints before writing a single line of code.
- 02
Design
Plan the data model, API contracts and UI flows so the build stays focused.
- 03
Build
Ship in small, typed, tested increments with clean and readable code.
- 04
Deploy
Automate CI/CD, monitor production and keep improving after launch.
Contact
Let's build something great together.
Have a project, a role or an idea? Send me a message — I usually reply within a day.