Atul Tiwaree

Summary

React Native Developer with 3 years of experience building cross-platform mobile apps for Android and iOS. Independently architected Fahdu, a creator platform serving 20,000+ users with live streaming, real-time chat, and payment integrations — achieving a 4.2+ Play Store rating and 25% retention growth. Specialized in performance optimization (60fps, 99.7% crash-free), real-time systems (WebRTC, Socket.io), and full-stack integration. Published 2 NPM packages.

Experience

Software Engineer — React Native (Team Lead)

July 2023 – Present

Ginie Digital, Mohali

Independently architected Fahdu (fahdu.com), a creator platform for 20,000+ users with a 4.2+ Play Store rating, built using React Native CLI and Expo.
Built live streaming and video call features using ZEGOCLOUD SDK and real-time chat via WebSockets / Socket.io handling 10,000+ daily messages at 99.5% delivery rate.
Integrated Firebase Crashlytics and Analytics for observability; maintained 99.7% crash-free sessions and improved retention by 25% through data-driven optimizations.
Implemented biometric authentication (Face ID / fingerprint) via react-native-biometrics, reducing auth time by 40%.
Optimized performance using FlatList virtualization and Redux refactoring — achieved 60fps scroll and 35% memory reduction.
Built security architecture with JWT, OAuth 2.0, rate limiting, and encryption — zero incidents in production.
Developed test suite with Jest and Detox at 75% code coverage, reducing bugs by 60%.
Integrated payment gateways (Cashfree, Razorpay) and FCM push notifications.
Established CI/CD pipeline using Expo EAS and GitHub Actions with OTA deployments.
Implemented offline-first architecture using MMKV and AsyncStorage, reducing server load by 40%.

Web Development Intern

June 2022 – Dec 2022

Deftsoft, Mohali

Built RESTful APIs using Express.js, MongoDB, and JWT authentication.
Developed React Native screens with navigation and state management.

Technical Skills

Mobile

React Native, TypeScript, JavaScript, Redux Toolkit, Expo, React Native CLI, Hooks, React Query

Real-Time & Streaming

ZEGOCLOUD SDK, WebRTC, WebSockets (Socket.io), FCM, APNs, Notifee

Backend & APIs

Node.js, Express.js, MongoDB, REST APIs, GraphQL, Firebase, AWS (S3, Lambda), Azure

Performance

FlatList optimization, Memory management, 60fps rendering, Bundle optimization, React DevTools Profiler

Security & Storage

JWT, OAuth 2.0, Biometric login, MMKV, AsyncStorage, Redis, API rate limiting

Testing & DevOps

Jest, Detox, Appium, GitHub Actions, CI/CD, EAS Build, Git

Open Source & Writing

ServerSetup — NPX CLI Tool

Node.js boilerplate generator. Rated 4.5/5 on npm. Reduces project setup time by 25%. — npm / GitHub

Ring — Clipboard Manager

CLI tool for code snippets with remote sync. Featured on Medium. Cross-device productivity tool. — npm / GitHub

Technical Articles on Medium

"Free Custom Dynamic Link" and "FFmpeg for Android 16KB" — helped 500+ developers with practical solutions.