← Zulqurnain Haider

Service

Expert Mobile Developer

Pixel-perfect, high-performance mobile apps built to scale. React Native, Flutter, Swift, and Kotlin — delivered end-to-end, from first wireframe to App Store.

React NativeFlutteriOSAndroid15+ apps shipped
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What I build with

React Native

Cross-platform apps with native performance. Custom modules, animations, Expo and bare workflow.

Flutter

Beautiful, expressive UIs that feel native on both platforms. Dart, BLoC, Riverpod.

iOS · Swift · SwiftUI

Full native iOS apps. UIKit, SwiftUI, Core Data, push notifications, App Store submission.

Android · Kotlin · Compose

Modern Android with Jetpack Compose, MVVM, Room, coroutines, and Play Store publishing.

Backend Integration

REST, GraphQL, WebSockets, Firebase, and custom APIs. I build the backend too if needed.

Security

Certificate pinning, code obfuscation, Frida countermeasures, and secure storage.

Industries I've built for

Fintech & BankingE-commerceRide-sharing & TransitHealthcareEdTechReal EstateEnterprise / B2BSocial & Community

What you get

—Full source code with clean architecture
—App Store and Google Play submission
—CI/CD pipeline setup
—Push notifications (FCM / APNs)
—In-app purchases & subscriptions
—Analytics & crash reporting
—Offline-first data sync
—Accessibility compliance

Types of apps I've shipped

Mobile wallet for millions of users

React Native · Spring Boot · AWS

iOS & Android

Shopping app with AI-powered search

React Native · Flutter · Python · Pinecone

iOS & Android

Banking app with SWIFT integration

React Native · Java · Oracle DB

iOS & Android

Mass-transit booking & real-time tracking

Swift · SwiftUI · Kotlin · Compose · GCP

iOS & Android

HR & workforce management platform

Flutter · Laravel · MySQL

iOS & Android

On-demand delivery with security hardening

Kotlin · Jetpack Compose · Frida

Android
See full project gallery →

How we work together

  1. 1Discovery call — I understand your idea, users, and goals.
  2. 2Scope & estimate — clear deliverables, timeline, and price. No surprises.
  3. 3Build — weekly updates, staging previews, and you're always in the loop.
  4. 4QA & launch — I handle testing, App Store submission, and production deployment.
  5. 5Support — bug fixes and iterations post-launch.

Have a mobile app idea?

Let's talk scope, timeline, and budget. I respond within 24 hours.

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Zulqurnain Haider

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Lahore, Pakistan · Open to remote worldwide