Senior Full-Stack Product Engineer with 11+ years of experience building and shipping production web, mobile, AI, e-commerce, fintech, and digital products.

I specialize in taking products from idea → architecture → implementation → deployment → production.

Currently focused on:

• Next.js, React & TypeScript
• Node.js & full-stack application development
• AI / LLM integrations
• Supabase, Firebase & PostgreSQL
• React Native & Expo
• Mobile-first web apps & PWAs
• Cloud deployment & production engineering

AI-powered Vietnamese calendar and cultural Web/PWA.

Built independently from idea to production, including product design, architecture, frontend/backend development, Gemini AI integration, deployment, analytics, SEO, and ongoing iteration.

Tech: Next.js · React · TypeScript · Gemini · Google Cloud Platform

Multi-platform QR and barcode product running across:

• Web
• Android
• Telegram Bot
• Developer API

Built and operated end-to-end, covering product strategy, UX, architecture, frontend, mobile, APIs, deployment, analytics, SEO, and maintenance.

Tech: React · TypeScript · Expo · Node.js · REST APIs

Full-stack affiliate discovery and analytics platform integrating affiliate networks, campaign data, smart links, and performance tracking.

I built the product architecture, frontend, backend, database, API integrations, campaign processing, tracking, deployment, and analytics.

Tech: Next.js · TypeScript · Node.js · Supabase · API Integrations

I work across the full product lifecycle:

• Product requirements & MVP planning
• Solution architecture
• Frontend development
• Backend APIs & databases
• Authentication & integrations
• AI chatbot / LLM integration
• Real-time systems & WebSockets
• Mobile development
• Cloud deployment & CI/CD
• App Store & Google Play releases
• Analytics, debugging & production support

I enjoy working on products where I can understand the business problem, make technical decisions, and take real ownership rather than only implementing isolated tickets.

TypeScript JavaScript Next.js React Node.js Hono NestJS

REST API Supabase Firebase PostgreSQL MongoDB MySQL WebSocket

Gemini LLM Integration AI Chatbots AI-Assisted Development

React Native Expo Flutter Swift Kotlin iOS Android

Google Cloud Platform Cloudflare Vercel Firebase GitHub Actions CI/CD Fastlane

Web3 WalletConnect Privy Solana Base Blockchain APIs

I maintain open-source packages focused on solving practical Flutter, mobile, and web development problems.

A collection of Flutter utilities for moving expensive workloads away from the main UI thread.

Includes:

• isolate_flutter — utilities for working with Dart isolates
• isolate_http — HTTP processing with isolate-based execution
• isolate_image_compress — image compression without blocking the UI thread

The project focuses on improving responsiveness and simplifying isolate-based processing in real-world Flutter applications.

SVG URI rendering support for React Native and Expo applications.

My background combines deep mobile engineering with modern full-stack product development.

Over the years, I've worked with:

• Production e-commerce applications
• Marketplace and fulfillment systems
• AI-powered products
• Real-time applications
• Wallet and fintech experiences
• Mobile apps published to the App Store and Google Play
• Client-facing software delivery
• Small engineering team leadership

I've also independently launched multiple 0-to-1 production products and have experience leading developers, reviewing architecture and code, estimating work, and collaborating directly with product and business stakeholders.

I'm open to freelance, contract, and remote opportunities involving:

• Next.js / React
• Full-Stack TypeScript
• SaaS & MVP development
• AI-powered applications
• Supabase / Firebase
• React Native / Expo
• Product development from 0 → 1

LinkedIn: linkedin.com/in/thongdn

GitHub: github.com/thongdn-it