Available for new opportunities

SENIOR REACT NATIVE ENGINEER · 5+ YEARS

I build scalable, secure & high-performance mobile experiences.

Senior React Native Engineer with 5+ years of experience building cross-platform applications for Android, iOS, and PWA — with expertise in the React Native New Architecture, performance optimization, security, native integrations, and CI/CD automation.

Hire me Resume

amitaquarius13@gmail.com New Delhi, India

import { View, Text } from 'react-native';
export default function App() {
  return (
    <View style={styles.card}>
      <Text style={styles.title}>
        Ready to ship 🚀
      </Text>
    </View>▌

Fast Refresh · 0.4s

iOS ✓

Android ✓

React Native

Android

iOS

JavaScript

TypeScript

Node.js

Firebase

Redux

Git

GitHub

Fastlane

Sentry

Years Experience

Active Users

RN Applications Shipped

Faster Feature Development

Cold-Start Improvement

SDK Integrations

Open-Source Packages

Release Pipeline Time

// ONE CODEBASE, EVERY PLATFORM

Shipped native. Built once.

Scroll to move through real screens I've shipped to production — Android, iOS, and PWA from a single React Native codebase.

✓npx react-native run-android — build succeeded

✓xcodebuild -workspace ios — archive succeeded

✓fastlane deploy — Play Console & App Store Connect

✓OTA update pushed — Stallion · 0 downtime

✓Crashlytics & Sentry — monitoring live

Android

APK trimmed from 114MB to 70MB on Bally's Rewards, with 50% faster cold-start.

iOS

App size cut from 55MB to 26MB, shipped through App Store Connect with Fastlane.

Progressive Web App

The same React Native codebase, rendered straight to the browser.

// ABOUT

Engineering mobile products end-to-end, not just screens.

I'm a Senior Software Engineer at TO THE NEW, specializing in React Native across Android, iOS, and Progressive Web Apps. My work spans the full lifecycle of a mobile product — architecture decisions, native module bridging, performance tuning, authentication and security, and the release pipelines that ship it all reliably.

I led the migration of legacy applications to React Native's New Architecture (TurboModules & CodeGen), built a reusable component library adopted across multiple projects, and have shipped features for global platforms in sports betting/iGaming and OTT meditation.

Beyond writing code, I own production health — monitoring crash-free sessions with Sentry and Crashlytics, automating dependency security audits, and building Fastlane pipelines that take releases from days down to minutes. I work closely with product, design, backend, and QA teams inside Agile sprints.

ARCHNew Architecture migration — TurboModules, CodeGen, native bridging

PERFStartup time, re-render reduction, memory profiling, app size

SECHMAC, Passkeys, biometrics, reCAPTCHA, dependency auditing

CI/CDFastlane automation, OTA updates, multi-environment release

OPSCrash monitoring, production health, release management

TEAMCross-functional delivery with PMs, design, backend & QA

// TECHNICAL EXPERTISE

Built for production, not demos.

Six areas of depth that define senior React Native engineering — from architecture to what keeps an app alive after release.

React Native & Architecture

React NativeReactPWANew ArchitectureTurboModulesCodeGenNative ModulesNative BridgingReact NavigationReusable Components

Performance

Startup OptimizationRe-render ReductionMemory ProfilingApp Size OptimizationCode SplittingFlatList OptimizationImage OptimizationAPI Debouncing

Security & Authentication

HMACSecure StoragePasskeysBiometricsGoogle reCAPTCHAOTP Auto-ReadGoogle Sign-InApple Sign-InFacebook Sign-In

CI/CD & Release

FastlaneFirebase App DistributionPlay ConsoleApp Store ConnectOTA Updates (Stallion)Release Automation

Monitoring

Firebase CrashlyticsSentryReactotron

Integrations

FirebaseWebSocketsPush NotificationsDeep LinkingAppsFlyerSingularCleverTapAeropayZoom SDKApple HealthKit

// EXPERIENCE

Professional Experience

Senior Software Engineer, TO THE NEW

Noida, Uttar Pradesh, India · React Native (Android, iOS, PWA)

Sep 2021 — Present

4+ applications, 10K+ users. Built a reusable component library adopted across 3+ projects, cutting new-feature development time by 70%.

New Architecture migration. Led migration of legacy apps to TurboModules & CodeGen, improving runtime performance and maintainability.

50% faster cold-start. Cut app size by up to 44MB (Android) / 29MB (iOS) via re-render reduction, memory profiling, and code splitting.

Secure by design. Implemented Passkeys, Biometrics, OTP Auto-Read, Google reCAPTCHA, and HMAC-secured API communication.

8-minute releases. Automated Android/iOS pipelines with Fastlane and Firebase App Distribution, down from a much longer manual process.

Production ownership. Monitored app health via Crashlytics and Sentry, and built an automated NPM dependency vulnerability audit script.

// FEATURED PROJECTS

Case studies from production.

Real platforms, real constraints — streaming, iGaming, and wellness, each with its own performance and security bar.

SPORTS BETTING / iGAMING · REACT NATIVE · PWA

Bally's Rewards

Bally's Interactive is a global entertainment platform offering sports betting, iGaming, free-to-play, and daily fantasy sports. Delivered high-performance UI across Android, iOS, and PWA, with CI/CD built for multi-environment scale.

114→70MB

Android APK size

55→26MB

iOS app size

Native Modules & Platform APIsFastlane CI/CD — Dev/QA/Pre-Prod/ProdEnvironment-specific code signingHMAC-secured communicationPasskey AuthenticationVoice-to-TextAeropay IntegrationFirebase Crashlytics

STREAMING PLATFORM · REACT NATIVE · ANDROID · iOS

Astro-Go

Streaming platform for Astro customers offering 50,000+ shows, live sports, dramas, and entertainment content.

Reusable UI ComponentsREST API IntegrationThird-Party SDKsAuthentication & Deep LinkingPerformance OptimizationProduction DebuggingAndroid & iOS Releases

STREAMING PLATFORM · REACT NATIVE

Sooka

A freemium streaming platform for Malaysian audiences, offering live sports such as the Premier League and Liga Malaysia, local entertainment, and exclusive Sooka Originals.

Google reCAPTCHA v1 & v2 POCSplash-Screen VideoDynamic Auth-Token RefreshDRM-Protected Playback

OTT MEDITATION APP · REACT NATIVE

Idanim

A mindfulness and meditation platform designed to bring calm, balance, and focus into users' daily lives.

UI & SDK IntegrationsTeam LeadershipAndroid & iOS ReleasesProduction MonitoringAuth: Google/Apple/FacebookOffline DownloadsZoom Live StreamingDeep LinkingCleverTap Analytics

// ENGINEERING IMPACT

Engineering that made a difference.

−50%

Faster Startup

Cold-start time reduced through re-render reduction, memory profiling, and code splitting focused on the app's critical render path.

−44 / −29MB

Smaller Apps

Android and iOS binaries trimmed through targeted app-size optimization, directly improving install conversion and update speed.

8 min

Faster Releases

End-to-end release pipeline automated with Fastlane and Firebase App Distribution.

Code→ Build→ Test→ Sign→ Distribute→ Release

−70%

Faster Development

A reusable component library, adopted across 3+ projects, cut new-feature development time significantly.

Security, Layered

A defense-in-depth approach applied across production apps:

Passkeys→ Biometrics→ HMAC→ Secure Storage→ reCAPTCHA→ Dependency Auditing

// OPEN SOURCE & WRITING

Open Source & Technical Writing

NPM PACKAGE

react-native-customizable-image-crop-picker

Customizable image crop picker for React Native — Android & iOS.

npmjs.com ↗

NPM PACKAGE

react-native-multi-flow-accordion

Custom accordion component for React Native — Android & iOS.

npmjs.com ↗

DEV.TO ARTICLE

Offline Audio & Video Downloads in React Native

A technical walkthrough of building offline media downloads for React Native apps.

dev.to ↗

DEV.TO ARTICLE

A Complete Guide to Deep Linking with Custom Domain in React Native

An end-to-end guide to implementing custom-domain deep linking in React Native.

dev.to ↗

// RECOGNITION

Awards & Recognition

FY'26

Star Performer Award

Recognized as a Star Performer for consistently delivering high-impact projects, demonstrating technical excellence, and contributing to team success.

Q2 FY'25

Quarterly Team Award — Customer Delight

Recognized for delivering exceptional customer experiences through strong collaboration and execution.

FY'24

Aeropay Feature Delivery

Successfully delivered the Aeropay payment integration within a challenging timeline while maintaining high quality.

FY'24

Continuous Improvement Awards

Recognized for consistently contributing to process improvements and optimizing workflows.

2024

Idanim July Release Milestone

Recognized for key contributions to the Kids Meditations milestones in the Idanim July release.

Q2 FY'23

Quarterly Team Award — Customer Delight

Honored for delivering exceptional customer experiences through great teamwork and dedication.

EDUCATION

Master of Computer Applications (MCA)

Guru Gobind Singh Indraprastha University, New Delhi · 2017–2020

Bachelor of Computer Applications (BCA)

Sikkim Manipal University, New Delhi · 2012–2015

CERTIFICATIONS

Advanced JavaScript

React Native Development

Cursor AI for Project Setup & Development

LEADERSHIP & VOLUNTEERING

Chief Coordinator — AICB Quadrennial National Conference of the Blind

Main Coordinator — NASA Space Apps Challenge

// GET IN TOUCH

Let's build something exceptional.

I'm open to opportunities where I can contribute to challenging mobile engineering problems, scalable architecture, performance, and product development.

Email Me

Resume