Mobile-first full‑stack software engineer. I build production-ready cross-platform React Native apps, realtime systems, and reliable backends, payments, tracking, auth, and developer-friendly templates.

I design and ship end-to-end mobile experiences, from native modules and UI to backend APIs, payments, and deployment. I care about developer experience (TypeScript-first), performance, and clean UX. I publish production-ready templates and practical tutorials to help other devs ship faster.

• Languages: TypeScript, JavaScript, PLpgSQL, Kotlin, Swift, Ruby
• Mobile: React Native (CLI & Expo), native Android (Kotlin), native iOS (Swift/Obj-C)
• Backend: Node.js (Express/Nest), Supabase, PostgreSQL, REST + realtime
• Payments: Stripe (Payment Sheet)
• Infra & tooling: Docker, GitHub Actions, Firebase, CI, Jest, E2E testing (Detox)
• Favorite patterns: component-driven mobile architecture, modular coding patterns, typed APIs, reproducible Dockerized dev environments

I focus on real-world mobile apps (food delivery, payments, realtime location) and starter templates that are production-ready.

• Some heavy stuff (projects) that I can't reveal here

• nanbites-food-delivery-app — Complete food delivery mobile app built with React Native CLI, featuring Supabase backend, Stripe payments, real-time tracking, Google OAuth, push notifications, and modern UI/UX.
  https://github.com/salmanazamdev/nanbites-food-delivery-app
  Languages: TypeScript 83.1% · PLpgSQL 11.8% · Kotlin 1.8% · Ruby 1.3% · Other 2%

• restaurant-fullstack-app — Full‑stack restaurant food delivery app (Khaana Express) using Node.js, PostgreSQL (Docker), and React Native (Expo). Admin management for orders, menus, users and real-time status.
  https://github.com/salmanazamdev/restaurant-fullstack-app
  Languages: TypeScript 71.2% · JavaScript 28.8%

• todo-list-app (AchieveIt) — Cross-platform to-do app (React Native + PostgreSQL + Docker).
  https://github.com/salmanazamdev/todo-list-app
  Languages: TypeScript 90.2% · JavaScript 9.8%

• live-location-mapper — RN module for real-time map rendering, live location tracking, and search suggestions.
  private Languages: TypeScript 70.7% · Kotlin 15.6% · JavaScript 13.7%

• rn-firebase-complete — RN + Firebase starter with push notifications & analytics — production-ready template.
  https://github.com/salmanazamdev/rn-firebase-complete
  Languages: TypeScript 62.4% · Kotlin 15.6% · Objective-C 8.3% · Ruby 7.9%

• stripe-payment-react-native-app — RN app with Stripe Payment Sheet integration + backend.
  https://github.com/salmanazamdev/stripe-payment-react-native-app
  Languages: JavaScript 54.1% · Kotlin 16.6% · Ruby 11.5% · Swift 9.2%

• react-native-google-auth-signin-android — Guide + working code for Google OAuth on RN Android.
  https://github.com/salmanazamdev/react-native-google-auth-signin-android

• restaurant-api-nodejs-docker — RESTful restaurant management API (Node.js, Express, PostgreSQL) — Dockerized.
  https://github.com/salmanazamdev/restaurant-api-nodejs-docker

1. Product flow, wireframes, and API contract (OpenAPI / Postman)
2. Backend & DB (Postgres, schema, stored procedures)
3. Mobile UI and components (TypeScript, reusable patterns)
4. Integrations: Auth (Supabase/Google), Payments (Stripe), Push & Analytics
5. Realtime: location, order updates (Supabase Realtime / sockets)
6. CI, tests, Docker, and release (App Store / Play Store + server infra)

• GitHub: https://github.com/salmanazamdev
• LinkedIn: https://www.linkedin.com/in/salmanazamdev

Open to: freelance contracts, startups, technical leadership, mentorship, and collaboration on mobile + backend products. If you’re building something that needs fast, production-ready mobile + backend work, reach out.

If you find a security vulnerability in any repo, please reach out privately (do not open a public issue) and include reproduction steps and affected versions — I will respond and coordinate fixes.

If you find my templates or tutorials helpful and want to support continued work:

• Star projects you like and open issues/PRs with improvements.