Independent Mobile App Developer · Vietnam

Building reliable mobile experiences for everyone

I'm Long Hải, an independent developer focused on crafting polished, cross-platform mobile applications backed by scalable server-side services.

About

End-to-end development from mobile UI to production APIs.

Mobile Development

I design and ship native-quality apps for iOS and Android using React Native and Expo. From onboarding flows to offline-first features, I prioritize performance, accessibility, and a smooth user experience on every screen size.

Backend & APIs

Behind every app is a dependable backend. I build RESTful APIs and services with Node.js and NestJS — authentication, subscriptions, analytics pipelines, and integrations that scale with your product.

Privacy & Trust

User trust matters. My applications follow transparent data practices, clear privacy policies, and secure handling of account and usage information — ready for app store review and real-world use.

Technology Stack

Tools and frameworks I use to deliver production-ready applications.

  • React Native Cross-platform mobile UI
  • Expo Build, deploy & OTA updates
  • TypeScript Type-safe code across the stack
  • Node.js Server runtime & tooling
  • NestJS Structured backend architecture

Contact

Have a question about one of my apps, need support, or want to discuss a project? I'd love to hear from you.

nguyenhailong2508@gmail.com

Based in Vietnam · Replies within 2–3 business days