Mobile App Architect

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I’m Bilal RamzanMobile App Engineer

Senior Mobile Engineer building React Native, Flutter and native iOS apps that ship to the App Store and Google Play.

  • React Native
  • Expo
  • Flutter
  • SwiftUI
  • Node.js
See Shipped Apps Live on both stores
countYears Of Experience
iOS + AndroidShipped to both stores
countClient Satisfaction
Bilal Ramzan
Shipped Apps

Live On The App Store & Google Play

View All Projects
Cleansai app icon
Flutter · On-device AI

Cleansai

Cleansai is an AI-powered storage cleaner that runs entirely on-device, so photos never leave the phone. It finds near-duplicate photos and videos with real perceptual-hash clustering rather than guesswork, scores photo quality to suggest the best shot in each group, and cleans junk, large files, old files, contacts and messaging media. Every deletion goes through a 30-day recycle bin, and on Android it also finds data folders that uninstalled apps left behind. The app is built in Flutter with a feature-first architecture, ships a freemium model with a monthly free quota, rewarded-ad top-ups and a Pro subscription, and includes a macOS junk cleaner.

Broski: AI Wingman app icon
React Native · Node.js · AI

Broski: AI Wingman

Broski is an AI-powered conversation coach that helps users reply with confidence and never get left on read. It suggests chat replies, analyses conversation screenshots, and runs gamified daily drills to build texting and dating skills. The React Native app is backed by a Node.js/Express and MongoDB API with AI assistants for each feature, a Redis job queue, push notifications through Firebase Cloud Messaging, and RevenueCat subscriptions, and it is live on both the App Store and Google Play.

MyHayd app icon
React Native CLI · Firebase

MyHayd

MyHayd is an Islamic period-tracking health app personalised for Muslim women. I built and released it to both the App Store and Google Play, covering Firebase authentication, real-time data sync across devices, and push notification delivery.

vExpo ( Virtual Expo )
Product Design & Development

vExpo ( Virtual Expo )

vExpo is Pakistan’s biggest virtual and hybrid expo platform. Complete 360° support throughout the event and after. Get a dedicated customer representative to support you throughout the event. The virtual expo is designed for online use and to resemble a conventional expo center, with lobbies, networking and exhibition halls. There are booths for showcasing projects. An online attendee can view booths/stalls, peruse soft brochures, or chat with sales representatives in real-time, attend keynote presentations and network with virtual stall owners as per his/her convenient time and location

A+ Payroll app icon
Mobile App Development

A+ Payroll

A+ Payroll is a payroll management app for small businesses, letting owners handle staff pay and payroll records from their phone. It is published on the App Store.

Expert Online Training app icon
Mobile App Development

Expert Online Training

Expert Online Training delivers expert-led staff training on mobile, with training videos, progress tracking and multilingual support. It is live on both the App Store and Google Play.

About Me

Senior Mobile Engineer & Architect

I've spent 8+ years building and shipping cross-platform and native mobile apps with React Native (Expo and CLI), Flutter and Swift/SwiftUI, backed by Node.js, Supabase and Firebase.

I turn web products into real iOS and Android apps, rescue AI-generated and vibe-coded codebases into typed, tested systems, and get rejected apps approved on the App Store and Google Play.

Remote · US, EU & Middle East hours BS Computer Science
Mobile Architecture

React Native, Flutter & SwiftUI apps built to scale

Web to Mobile Apps

Real iOS & Android apps from your web product

App Rescue & Refactoring

AI-generated code turned typed, tested & safe

Store Submission & Approval

Rejections fixed, releases shipped

Experience

8+ Years Shipping Mobile Apps

Jul 2024 - Present

Senior Mobile Engineer & Architect

Freelance · Remote
Oct 2025 - Dec 2025

Mobile Development Trainer

NAVTTC / Prime Minister's Youth Programme
2022 - 2024

Sr. Software Engineer

AiSoftwares
2021 - 2022

Mobile App Engineer

Friday Media Group LTD
2020 - 2021

Assoc. Software Engineer

Dual Innovation
2019 - 2020

Asst. Software Engineer

World Works Systems LTD
What I Do

Mobile Apps That Ship & Scale

01.

Web to Mobile Apps

Turn your web product into a real iOS and Android app, not a WebView wrapper. Shared backend, secure auth, offline support, push notifications, deep links and in-app purchases.

02.

AI-Generated & Vibe-Coded App Rescue

Audit and refactor fast-built codebases into typed, tested systems. Fix state, security and performance first, then add CI and crash reporting so new features ship safely.

03.

App Store & Google Play Rejection Fixes

Get rejected apps approved. I fix the root cause behind guideline 4.2, 3.1.1, 5.1.1, privacy manifest and Play policy rejections, then write a Resolution Center reply that closes it out.

04.

Mobile Architecture & Development

End-to-end React Native, Expo, Flutter and SwiftUI apps: state management, API integration, offline sync, push notifications and analytics, built to keep scaling.

05.

Subscriptions & Monetization

Subscriptions and in-app purchases with RevenueCat, StoreKit and Google Play Billing, plus AdMob, across free, subscription and referral tiers.

06.

Upgrades, CI/CD & Releases

React Native and Expo SDK migrations, native dependency upgrades, unblocked iOS and Android builds, and automated releases with EAS, Fastlane and GitHub Actions.

My Skills

Let’s Explore Popular Skills & Experience

Cross-platform and native mobile, backed by Node.js, Supabase and Firebase. Plus RevenueCat, StoreKit and Play Billing for subscriptions, and EAS, Fastlane and GitHub Actions for CI/CD and store releases.

Learn More
React Native
React Native
95%
Expo
Expo
93%
Flutter
Flutter
88%
Swift / SwiftUI
Swift / SwiftUI
85%
TypeScript
TypeScript
92%
Kotlin / Android
Kotlin / Android
78%
Node.js
Node.js
82%
Supabase & Firebase
Supabase & Firebase
88%