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Achievement: Pull SharkAchievement: QuickdrawAchievement: Starstruck

Achievements

Achievement: Pull SharkAchievement: QuickdrawAchievement: Starstruck

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dakiquang/README.md

Quang Dang

Product-minded tech lead. 15+ years building software, 10 in SaaS.

I keep products simple for the people who use them, and solid for the people who run them.

quangdk.com · Work · Services · Writing · Get in touch

Website LinkedIn

15+ 10 30+
years building software years in SaaS products worked on

Most of my work lives in private client repositories, so this profile shows only a small part of it.

What I do

  • Build web and mobile products from first version to production, payments included.
  • Lead small engineering teams through releases, reviews and upgrades.
  • Modernise ageing apps and backends while they keep serving customers.
  • Bring AI into a team's work with review, limits and a clear record of what it did.

Stack

Layer Tools
Backend and APIs PHP, Laravel, Node.js, Express, GraphQL, REST
Web TypeScript, React, Next.js, Vue, Tailwind CSS
Mobile React Native, Expo, Flutter, App Store and Google Play releases
Data MySQL, multi-tenant SaaS, Cloud SQL, D1
Payments Stripe, 3-D Secure, accounting sync
Cloud AWS, Google Cloud, Cloudflare Workers, Docker
AI Coding agents, cross-model review, MCP

Selected work

  • Racing industry SaaS. Nearly ten years on a B2B platform for Australia and New Zealand: backend, billing, web and mobile apps.
  • School apps. Multi-tenant web portals and teacher, parent and student apps.
  • App modernisation. Rebuilt a legacy React Native app on Expo and moved users across without losing their data.

Case studies are at quangdk.com/work.

Open source

Project What it shows Measured
PaidUp Invoices and safe payments across a Laravel API, a Next.js dashboard and an Expo app ci 61 tests, 97.8% API coverage
pr-orchestrator Cross-model pull request review with guardrails validate
quangdk.com Astro, EmDash and Tailwind on Cloudflare Workers ci Lighthouse: 95 mobile, 97 desktop performance; 100 accessibility and SEO

How I work

Leave things out. Use your users' words. Be careful with money. One model writes, another reviews, a person decides.

Simple is the hardest thing to build.

Pinned Loading

  1. pr-orchestrator pr-orchestrator Public

    Cross-model pull request review: one model writes, another reviews, a person decides.

    Python

  2. quangdk.com quangdk.com Public

    Source of quangdk.com: Astro and EmDash on Cloudflare Workers. Lighthouse 95-100 on production.

    Astro