q
qunqun485

Quan P

@qunqun485

Full Stack AI and React Native App Developer

Vietnam
Vietnamese, English
About me
I build and ship real products, not demos. 3.5 years as a full-stack engineer: React Native apps shipped to the App Store and Google Play, an AI video platform serving ~500 users, and RAG search systems (hybrid BM25 + pgvector + reranking) used in production. I help founders who built with Lovable, Bolt, Replit or Cursor get to production: fix bugs, secure auth and APIs, publish to the stores, and add AI features that work. Stack: React Native, Expo, Next.js, NestJS, Supabase, Postgres, Go, Docker. Clear scope, daily updates, clean handover.... Read more

Skills

q
qunqun485
Quan P
Offline • 
Average response time: 1 hour

See my services

Troubleshooting & Improvements
I will fix your lovable app, supabase errors and deploy your bolt or replit app
From$20 / projectMore details
Automations & Agents
I will build n8n ai automation, ai agents and chatbots for your business
From$45 / projectMore details

Work experience

Freelance

Freelance Software Engineer

Freelance • Freelance

Jul 2024 - May 2026 • 1 yr 10 mos

Cross-platform desktop app (Rust, Tauri 2 + React): wrote the ~10k-line Rust backend with a local payment-callback server, AES-GCM encryption, Ed25519 license checks, SQLite migrations and browser process management; 189 tests in cross-OS CI before signed auto-updates. Crypto trading backend (NestJS): turned TradingView alerts into validated orders sent to execution bots over Socket.IO, read Binance futures streams for volume indicators, stored trades in PostgreSQL and sent Telegram alerts.