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Hamza Maghfoor

@hamzamaghfoor

React Native Developer at Stackup Solutions, shipping fintech payment flows and low-latency AI voice features in production apps.

Pakistan

Message

At Stackup Solutions, I engineered low-latency AI voice features with WebRTC and the OpenAI Realtime API, bringing real-time conversational interfaces into production mobile apps.

I also implemented fintech payment flows with Stripe, Apple Pay, Google Pay, and Tap to Pay, maintaining production crash rates under 0.1%. I built a transport booking app for real-time driver-passenger coordination.

At Txend Icn, I led a migration to Redux Toolkit, RTK Query, and strict TypeScript, and built custom native modules bridging Android Kotlin APIs to React Native. I established test automation with Jest and Detox and rolled out CodePush for OTA updates.

At Kodex Technologies and Oladoc Pakistan, I improved mobile performance, integrated maps and push notifications, and built reusable booking features. I’ve shipped more than 15 production apps for funded startups, as noted in my resume summary.

Experience

Work history, roles, and key accomplishments

Current

React Native Developer

Current

Stackup Solutions

Oct 2025 - Present (1 year)

Engineered low-latency AI voice features using WebRTC and the OpenAI Realtime API, and implemented fintech payment flows with Stripe, Apple Pay, Google Pay, and Tap to Pay. Optimized JS-native bridge performance under React Native New Architecture and maintained production crash rates under 0.1% via Sentry monitoring.

React Native WebRTC OpenAI GPT Realtime Stripe Apple Pay Google Pay Tap To Pay Sentry Fabric JSI (JavaScript Interface)

Software Engineer (React/React Native)

Txend Icn

Sep 2024 - Oct 2025 (1 year 1 month)

Led migration to a scalable, type-safe state architecture using Redux Toolkit, RTK Query, and strict TypeScript. Built custom native modules for Android (Kotlin) and established test automation with Jest and Detox, plus CodePush for OTA updates.

React Native React Redux toolkit Redux RTK Query TypeScript Kotlin Jest Detox CodePush Fastlane

React Native Developer

Kodex Technologies

Oct 2023 - Sep 2024 (11 months)

Re-engineered heavy data feeds by migrating legacy lists to FlashList, cutting UI rendering lag and memory usage. Integrated interactive mapping via Google Maps and Apple Maps APIs with optimized background location tracking, and built high-throughput push notification infrastructure using FCM, APNS, and OneSignal.

React Native FlashList Google Maps Apple Map Firebase Cloud Messaging APNS OneSignal Deep Linking

React Native Developer

Oladoc Pakistan

Sep 2022 - Oct 2023 (1 year 1 month)

Built reusable UI components and core booking features for a healthcare platform serving patients across 100+ cities. Improved app performance on mid-to-low-end devices by optimizing re-renders and implementing lazy loading and pagination.