Senior React Native Developer · BLE/IoT Integrations · Cross-Platform Mobile
Mobile engineer with 5+ years shipping production React Native apps to the App Store and Google Play. I specialise in the parts most React Native developers avoid: Bluetooth Low Energy and IoT hardware integrations, real-time data pipelines, and release automation that turns a manual build into a one-command deploy.
Currently building hardware-connected mobile apps at Xcorebit — based in Lahore, Pakistan and open to remote roles with UK, EU and US teams.
Senior React Native Developer — Xcorebit
Oct 2025 – Present
- Integrate Bluetooth sensors and IoT devices (pressure, differential pressure, GPM flow-rate, LRC) into React Native apps for live data capture and monitoring.
- Build real-time data flows from hardware to UI, including recorded sessions and spreadsheet export for field testing.
- Own CI/CD pipelines for build, test and deployment across iOS and Android.
Mar 2024 – Sep 2025
- Built high-performance React Native apps with optimised state management (Redux Toolkit, Context API) and REST API integration.
- Shipped and maintained releases on the App Store and Google Play using Fastlane, GitHub Actions and Firebase App Distribution.
- Worked across UI/UX, QA and delivery with cross-functional teams.
Aug 2023 – Mar 2024
- Delivered cross-platform apps in React Native and Flutter, focusing on performance and UI consistency across screen sizes.
- Built reusable component libraries and utility apps with offline support and local storage.
- Published applications to both the App Store and Google Play.
Aug 2021 – Jul 2023
- Developed React and React Native applications with TypeScript, JavaScript and Redux.
- Integrated REST APIs and third-party services, and implemented authentication with Firebase, Google and Facebook.
- Delivered for both iOS and Android in agile teams.
Most of my production work is client-owned and private. Case studies and store links live on my portfolio.
| Project | What it does | Stack |
|---|---|---|
| Smart Monster (Hose Monster) | Connects to Kraken pressure transducers over Bluetooth for live pressure and flow-rate readings, recorded flow data and spreadsheet export. Live on both stores. | React Native, BLE, native modules |
| Mersive | Cross-platform collaboration app for meetings and classrooms — iOS, Android, Web and TV from one codebase. | React Native (Expo) |
| SmartWorkForce | HR and workforce management platform for iOS and Android. | React Native, REST APIs |
| Zepiex | Live tracking platform for security guards with real-time manager updates, shift scheduling and report submissions. | React Native, Redux, Firebase |
| Simple Rishta | Matchmaking app with Google authentication, verified signup, profile creation and image uploads. | React Native, Firebase Auth |
| Tecklogs | Field operations and task management app. | React Native |
A CLI that audits an Expo project before eas build / eas update: missing iOS usage strings, Android permissions, eas.json and update-channel mistakes, committed secrets. Tested against 23 open-source Expo apps; the write-up is on dev.to. Try it with npx expo-preflight.
A production-ready starter for new Expo apps: Expo Router protected routes, Redux Toolkit + RTK Query, secure token storage with automatic token refresh, light/dark themes, typed i18n, Jest tests and GitHub Actions CI. Click Use this template to start your next app with sign-in, data fetching and theming already set up.
| Repo | Focus |
|---|---|
| react-native-quick-crypto | Contributor: shipped a Jest mock backed by node:crypto (merged) |
| CI-CD | Expo CI/CD reference: over-the-air updates with expo-updates, multi-environment config, dev client builds |
| Raah-e-Haq | Firebase Auth + Firestore + Cloud Messaging, Google Sign-In, Redux Toolkit, in-app chat, Google Maps, offline handling |
| SecureApp | Expo Router, biometric authentication, encrypted secure storage, local media handling |
| Calendar-App | Calendar scheduling, QR scanning with camera permissions, AWS Cognito auth |
| Spotlight-App | Expo Router, blur UI, WebView, Reanimated animations |
| Authentication | React Native auth flow on Appwrite with protected navigation |
| Audit-Accounts | Next.js + Sanity CMS site with Tailwind CSS and shadcn/ui |
Mobile React Native · Expo · Expo Router · React Navigation · iOS & Android · Flutter · native modules (Kotlin, Swift)
Hardware Bluetooth Low Energy · IoT sensor integration · real-time data streams · camera & QR scanning · geolocation
Languages TypeScript · JavaScript · Dart · Kotlin
State & Data Redux · Redux Toolkit · Context API · AsyncStorage · offline handling (NetInfo) · React Hook Form
UI & Animation Reanimated · Gesture Handler · NativeBase · React Native Paper · custom component systems · Tailwind CSS
Backend & APIs REST APIs · Firebase (Auth, Firestore, Storage, Cloud Messaging) · Appwrite · Axios · Postman
Auth Firebase Auth · Google Sign-In · Facebook Login · AWS Cognito · biometric authentication · secure storage & encryption
Testing Jest · React Testing Library
CI/CD & Release GitHub Actions · Fastlane · Firebase App Distribution · App Store Connect · Play Console
Web React · Next.js · Sanity CMS · shadcn/ui · HTML · CSS · Bootstrap
Tooling Git · GitHub · GitLab · Xcode · Android Studio · Gradle · Jira · Agile/Scrum
BS Computer Science — FAST National University of Computer and Emerging Sciences (NUCES)
Open to senior React Native and mobile engineering roles, remote or hybrid.
- Email attayrasool15@gmail.com
- LinkedIn attay-rasool15
- Portfolio attayrasool.netlify.app