Senior React Native Engineer · Team Lead

I lead React Native teams and ship to millions

6.5+ years across fintech, e-commerce, and on-demand — mobile architecture, native modules, SDK development, and performance at scale. Led a 13-engineer team. Shipped a Flutter SDK from zero prior Flutter experience.

6.5+
Years Exp
13
Team Led
6.8M+
App Users
5+
Open Source
Gulsher

Gulsher

Senior React Native Engineer & Team Lead

Role

Senior React Native Engineer & Team Lead

Specialization

React Native, ReactJS & Next.js

Experience

International delivery in UAE & Oman

Founder

ZuPick AI · AI shopping assistant · 60K+ users

Founder

DevSolve · Developer marketplace for tools & solutions

About Me

A brief introduction to who I am and what I do

I'm a Senior React Native Engineer and Team Lead with 6.5+ years building mobile products for fintech, e-commerce, and on-demand businesses — the kind of apps where a crash or a slow checkout costs real money. I own architecture end-to-end: native module integration, payment gateways, maps, real-time tracking, and the CI/CD pipeline that ships it all. As Team Lead at Code Brew Labs, I've led a 13-engineer team, run code reviews, and mentored developers from onboarding to independent ownership.

My core stack is React Native and React.js, but I don't stay in my lane when a client needs something else — I picked up Flutter mid-career to lead the Alfardan Exchange remittance SDK, using Claude Code to close the gap fast. I've delivered projects onsite in the UAE and Oman, working directly with client stakeholders rather than through a layer of account managers, so I'm used to owning requirements and outcomes, not just tickets. Outside the day job, I've co-founded two live products — an AI shopping assistant and a developer tools marketplace — and contribute to open-source React Native tooling.

Team Leadership

Led up to 13 engineers — architecture, code review, mentoring

Global Delivery

Onsite delivery & direct client ownership in UAE & Oman

Performance

99.99% crash-free at 4.5M+ users in production

Open Source

5 published tools/contributions & 2 self-funded products live

Experience

My professional journey and career milestones

React Native Team Lead

Code Brew Labs

May 2022 - Present
Chandigarh
  • Lead a 13-engineer React Native team across architecture decisions, code reviews, and sprint delivery for Code Brew Labs' multi-vertical super-app (Royo 2.0), spanning e-commerce, taxi, food delivery, and on-demand modules
  • Migrated RedTag's e-commerce app from separate native iOS/Android codebases to a single React Native codebase, now serving 4.5M+ users across the GCC at a 99.99% crash-free rate — owned architecture decisions and delivered the release onsite in the UAE
  • Integrated Google Analytics, MoEngage, and AppsFlyer into RedTag for marketing's user-journey tracking, and built push and in-app notification systems
  • Designed and shipped a Flutter-based Remittance SDK for Alfardan Exchange (UAE) using Flutter Plugin/Module architecture, built entirely with Claude Code despite zero prior production Flutter experience
  • Directed real-time driver tracking, maps, and taxi-booking features for Royo 2.0's ride-hailing module, shipped alongside food delivery, grocery, and rental verticals on a shared codebase
  • Cut release friction by integrating CodePush into CI/CD and automating Android APK generation and S3 distribution with a Node.js script
  • Own technical client communication for UAE/GCC accounts — translating stakeholder requirements directly into architecture and sprint plans

Tech Stack

React Native, ReactJS, NextJS, Flutter, CI/CD, Node.js

React Native Developer

Code Brew Labs

Jan 2020 - May 2022
Chandigarh
  • Promoted from Intern to full-time Developer within 8 months
  • Delivered production features across e-commerce, fitness, and marketplace apps — API integration, payment flows, maps, push notifications, and real-time updates for multiple concurrent client projects

Tech Stack

React Native, JavaScript, Firebase, Push Notifications, Redux, REST API

Projects

Production apps serving millions of users across multiple countries

Featured

4.5M+ App Users

RedTag's e-commerce app, migrated from separate native iOS and Android codebases into a single React Native app. Serves customers buying clothing, shoes, and homeware across Gulf countries at a scale of millions of users.

40-50K DAUs (Seasonal)99.99% Crash-Free Rate16% Growth in Sales

Role: Solo Developer : Rebuilt the native iOS/Android app from scratch in React Native, owned architecture decisions, and delivered the project onsite in UAE

React NativeE-commerceNew Architecture

A cross-platform remittance SDK built for Alfardan Exchange (UAE), enabling partner applications to integrate remittance services including beneficiary management, transfer flows, and transaction tracking. Built entirely using Claude Code, despite having no prior Flutter experience as a React Native developer.

Role: Technical Lead : Built the SDK using Flutter Plugin and Flutter Module architecture, entirely with Claude Code despite having no prior Flutter experience

FlutterFintechSDKClaude Code
Led Team of 13 Developers

A super app that integrates multiple modules such as e-commerce, cab booking, food delivery, car rentals, on-demand services, and P2P transactions. A single platform providing multiple services seamlessly.

Multi-Module Architecture

Role: Led a team of 13 developers. Designed architecture, integrated taxi module, maps, real-time driver tracking

React NativeSuper AppSaaS

A digital wallet and payment application providing dynamic wallet functionality and transaction-related services.

Role: 2-person team : Restructured and optimized the codebase, built pixel-perfect UI from Figma designs, and integrated wallet & transaction APIs

React NativeFintech
300K+ App Users

A food delivery platform serving customers in Oman. Built separate applications for customers, drivers, and vendors. Traveled to Oman to deliver the first phase milestone.

International Delivery (Oman)

Role: Solo Developer : Built customer, driver, and vendor apps

React NativeFood Delivery
2M+ Downloads

du Pay is a secure and user-friendly mobile payment service, regulated by the Central Bank of the UAE, enabling seamless digital transactions, instant money transfers, and hassle-free bill payments.

Role: 2-person team : Implement new UI/UX designs and integrate APIs seamlessly

FlutterFintech

A financial app that allows users to take personal loans instantly and manage their expenses effortlessly.

Role: Solo Developer : Built mobile and web app

React NativeReactJSFintech
10K+ Downloads

Mexican food delivery app with over 10K+ downloads featuring customer and driver apps.

Role: Solo Developer : Built customer, driver, and vendor apps

React NativeFood Delivery
Entrepreneurship

Side Projects

Products I'm building on the side - from idea to launch

ZuPick AI icon

ZuPick AI

AI-Powered Shopping Assistant

Co-Founder & Developer

An AI-powered shopping companion that helps users discover daily deals, compare products side-by-side with AI analysis, and get personalized recommendations across smartphones, electronics, fashion, and home goods - all without account registration.

60K+
App Users
iOS & Android
Platforms
Free + Pro
Rating
AI-powered product analysis & comparisons
Personalized daily deal recommendations
No registration required to use
React NativeAI/MLiOSAndroid
DevSolve icon

DevSolve

Developer Marketplace

Founder & Developer

A two-sided marketplace where developers can monetize their expertise by selling premium tools (reusable modules, components, starter kits) or get expert help solving coding problems through competitive bidding and real-time collaboration.

Marketplace
Type
Next.js
Stack
Live
Status
Sell premium developer tools & earn revenue
Post coding challenges & receive competitive bids
Real-time chat collaboration with developers
Next.jsReactJSNode.jsMarketplace

Open Source

Projects I've created and libraries I've contributed to

NativeCraft

A web-based tool that instantly generates ready-to-use React Native boilerplates for both Expo and CLI. Supports custom app names and bundle IDs.

Visit Website

ScreenShield

Bridged a native iOS SDK to React Native to prevent screen recording when no suitable npm packages were available.

View on GitHub

react-native-bg-location

Developed an npm package for fetching user's latitude and longitude in both foreground and background modes.

View on GitHub

RNBrewKit

Developed a React Native boilerplate with essential configurations for projects, including libraries, navigation, state management, and styling setup.

View on GitHub

react-native-maps-here

Enhanced the library by contributing a Routing Feature for iOS, integrating HERE Maps SDK into React Native.

View on GitHub

Skills & Technologies

Technologies I work with on a daily basis

Languages

JavaScriptTypeScript

Frameworks & Libraries

React.jsNext.jsNode.js

Mobile

React NativeFlutterSwiftUINative ModulesMobile Architecture

Tools & DevOps

FirebaseGitCI/CDCodePushRedux

Analytics & Marketing

Google AnalyticsMoEngageAppsFlyerPush Notifications

Engineering Practice

System DesignCode ReviewsMentoringPerformance OptimizationSDK Development

AI Tools

Claude CodeCursor

Education & Awards

Academic background and recognitions

Education

B.Tech. in Computer Science and Engineering

ICFAI University, Himachal

Aug 2016 - Jun 2020CGPA: 7.8/10

Awards & Certs

  • Meta iOS Developer Professional on Coursera (2024)
  • Excellence Award by Code Brew Labs (2022)
  • Best Performer Award by Code Brew Labs (2021)