Maaz Op

Lead Mobile Application Developer with 3 years of experience building and shipping cross-platform iOS and Android apps with React Native, Expo, and TypeScript.

Built

AiCenna, a health app with wearable integrations (Health Connect, Samsung Health, Apple Health) and an AI assistant, from scratch in 5 months, and led Panda Delivery, a real-time delivery app with 10,000+ downloads. Currently leads mobile development for large-scale ERP apps at Zaryans Consulting, with apps published on both Google Play and the Apple App Store. Also experienced with Node.js, Firebase, PostgreSQL, Socket.IO, Stripe, and OpenAI and Gemini APIs.

Lead Mobile Application Developer - Zaryans Consulting - Islamabad, Pakistan

(2026-05)

• Lead mobile development across the company’s ERP and product apps, owning architecture, code quality through Git pull requests, and production releases.
• Maintain and enhance large-scale ERP mobile applications, including Z-Delivery, Aqua Green, and Dynamic Traders ERP, shipping new features, fixes, and store releases.
• Built and shipped AiCenna, a cross-platform health app, from scratch in 5 months using React Native 0.81, Expo SDK 54, React 19, and TypeScript with the New Architecture enabled.
• Integrated Android Health Connect, Samsung Health, and Apple Health through the Spike SDK, with background vitals sync using Android WorkManager and iOS BGTaskScheduler that runs even when the app is closed.
• Built health onboarding, health history, and lab-report upload (PDF and image) flows, plus health score, disease risk, and biological age dashboards with per-metric vitals trends.
• Implemented an AI chat and voice assistant over REST APIs with session history, and secure authentication using email OTP, Google Sign-In, token refresh, and Expo Secure Store.
• Designed a feature-based architecture (14 modules, about 290 source files) with DTO and mapper layers, React Query data fetching, a backend-driven SDK bootstrap that keeps secrets out of the app, and automated tests for vitals aggregation.

Lead Mobile Developer - CodenzaX - Remote

(2026-01 - 2026-04)

• Led architecture and development of Panda Delivery, a food and grocery delivery app with 10,000+ downloads, using React Native, Node.js, Firebase, Socket.IO, and REST APIs.
• Built real-time GPS tracking for drivers and customers using Socket.IO and the Google Maps API.
• Developed cart, checkout, wallet, and order management workflows with Stripe payments, JWT authentication, and Firebase Cloud Messaging push notifications.
• Published and maintained the app on both the Apple App Store and Google Play Store.
• Live Apps: iOS App Store | Google Play Store

React Native Developer - IG Tech Services - Islamabad, Pakistan

(2025-02 - 2025-12)

• Delivered production mobile and web applications, including MaxHype, Dynamic Energy Trading, the YardPair Admin Portal, and the Panoptic Dashboard.
• Built the MaxHype mobile app with React Native, TypeScript, and Firebase, integrating Stripe checkout and a Gemini AI chatbot, and improved responsiveness through search optimization and response caching.
• Built real-time dashboards for the Dynamic Energy Trading platform with live market data, analytics, and RBAC-secured access, using React Query caching for faster UI updates.

React Native Developer Intern - Quantum AI Labs - Swat, Pakistan

(2023-10 - 2025-01)

• Developed an AI Assistant mobile app with specialized assistant roles, AI chat, image analysis, Speech-to-Text, Text-to-Speech, and conversational memory using local SQLite storage.
• Built AI Kids Encyclopedia, an educational app with simplified explanations, storytelling, quizzes, voice-based learning, and YouTube API content.
• Built Firebase Cloud Functions with the OpenAI and Gemini APIs for AI orchestration, content generation, and moderation.

Bachelor of Science - Computer Science - University of Swat, Swat, Pakistan (2021 - 2025)