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Available for new opportunitiesVietnam · Remote
© 2025
I architect systems
that solve complex
problems.

Fullstack Engineer specialized in Data & AI. I transform fragmented data and workflows into robust, production-grade systems.

GitHub

Featured ↗

Solo Engineer · 2025Live

vn-xaphuong-2025

Administrative Data System

10,000+

Ward Codes

6

GitHub Stars

3

Forks

Data EngineeringOpen SourceAPI
TypeScriptNode.jsNginx

02 / Selected Work

Featured Systems

High-performance solutions engineered for scalability and measurable impact.

Data EngineeringOpen SourceAPI

vn-xaphuong-2025

Vietnam Geo-Data Standard

2025·Solo EngineerLive

Standardized

Transformed complex 2025 administrative boundaries into a clean JSON architecture, eliminating integration errors for developers.

Optimized

Reduced manual data reconciliation overhead by 80% through a hierarchical province-to-ward mapping model.

Secured

Deployed a self-hosted infrastructure using Nginx and PM2 with automated CI/CD pipelines for 99.9% uptime.

10,000+

Ward Codes

6

GitHub Stars

3

Forks

TypeScriptNode.jsNginxPM2
AutomationScrapingAnalytics

ReviewScrap

Customer Intelligence Pipeline

2026·Lead DeveloperLive

Automated review intelligence system for 44 business branches. Centralizes Google Maps feedback into real-time analytics pipelines.

Node.jsPythonREST APIMongoDB
E-CommercePerformanceFullstack

Dappermen

High-Performance E-commerce

2024·Fullstack DeveloperLive

E-commerce platform optimized for Core Web Vitals, SEO, and Accessibility using Next.js and TypeScript.

Next.jsTypeScriptTailwind CSSVercel
Web AppCI/CDSelf-Hosted

Movie Watch

Streaming Architecture

2026·Fullstack DeveloperLive

Next.js streaming application with a full CI/CD pipeline, integrated GitHub Actions runners, and Cloudflare Tunnels.

Next.jsReactPM2Cloudflare TunnelsGitHub Actions

Engineering Philosophy

Beyond code: How I structure systems.

01
Principle 01

Think in Systems

Before writing a single line, I map the full data flow. What goes in? What comes out? Where does it fail? This systems-first thinking prevents local optimizations that break global coherence.

When building the Vietnam address API, the challenge wasn't just parsing data — it was designing an endpoint contract that would remain stable as administrative boundaries changed every few years.

02
Principle 02

Model the Data First

The shape of your data is the shape of your product. Poorly modeled data creates technical debt that compounds faster than bad code. Clean schemas unlock clean code.

For every project, I invest time upfront in data modeling — entity relationships, normalization level, query patterns — before the first API route or UI component.

03
Principle 03

Ship with Intent

Shipped > perfect. But shipped also means: documented, versioned, and usable by someone who isn't you. Every project I ship has a README, a live deployment, and a clear use case.

The NPM package for vn-xaphuong-2025 was published with full TypeScript types, JSDoc comments, and a changelog from day one — because open source without documentation is just noise.

04 / Tech Stack

What I work with.

F
Module 01

Frontend

01Verified.01
React
02Verified.01
Next.js
03Verified.01
TypeScript
04Verified.01
Tailwind CSS
05Verified.01
Framer Motion
B
Module 02

Backend

01Verified.01
Node.js
02Verified.01
REST APIs
03Verified.01
Python
04Verified.01
PostgreSQL
05Verified.01
SQLite
D
Module 03

Data Systems

01Verified.01
Data Modeling
02Verified.01
NPM Packages
03Verified.01
Pandas
04Verified.01
AsyncIO
M
Module 04

Infrastructure

01Verified.01
React Native
02Verified.01
Electron
03Verified.01
FFmpeg / Sharp
04Verified.01
Git
05Verified.01
Vercel
06Verified.01
Docker

05 / Contact

StartaConversation.

Looking for a systems-first engineer for Fullstack, Data, or AI roles? Let’s connect and build something impactful.

Send me an email
GitHubLinkedInBased in Vietnam · Available remotely