Experienced in the full mobile development lifecycle including architecture, API integration, CI/CD, store deployment, analytics, performance optimization, and real-time systems. Strong background in clean architecture, scalable state management, Firebase integrations, and production-level React Native applications.
Scalable Mobile Applications
Mohammed
Ahmed
Senior React Native Developer
5+ years of experience building scalable cross-platform mobile applications. Specialized in clean architecture, Firebase integrations, and robust real-time systems.
0
Years Experience
0
Production Apps
1.8M
Fintech Users
Professional Summary
Architecting robust mobile experiences.
React Native (CLI & Expo)
Deep expertise building scalable cross-platform apps using TypeScript, ES6+, and JSX.
Performance Optimization
FlatList optimization, memoization, bundle splitting, and Hermes engine configuration.
Clean Architecture
SOLID Principles, Feature-based modular design, and robust scalable state management.
Technical Skills
My development technology stack.
Core & Languages
React Native, React Native CLI, Expo, TypeScript, JavaScript (ES6+), JSX.
State & Offline Caching
Redux Toolkit, RTK Query, React Query, Zustand, Context API, MobX, WatermelonDB, Local Sync Caching.
Security & Compliance
Pen-Testing Remediation, Biometrics (FaceID/TouchID), Keychain/Keystore, Network Security Config, SSL Pinning.
APIs & Real-Time
REST APIs, GraphQL, Apollo Client, Socket.io, WebSockets, Twilio Video SDK.
Architecture & UI
Clean Architecture, SOLID Principles, Feature modular design, NativeWind/Tailwind, Reanimated, Lottie.
DevOps & Testing
Fastlane, GitHub Actions, Bitrise, App Store Connect, Google Play Console, Jest, Detox, Flipper.
Career Timeline
5+ years of shipping real-world applications.
Jan 2026 - Present
React Native Developer
Uniparticle — Cairo, Egypt (Remote)
- Spearheaded feature development for the AMAN SuperApp, optimizing e-payment, microfinance, and installment modules to handle high transaction volumes smoothly.
- Collaborated closely with cross-functional product and design teams to translate complex business logic into high-fidelity UI components.
- Successfully identified and mitigated critical security vulnerabilities exposed during corporate penetration testing, implementing secure data storage protocols, biometric authentication, and Keychain/Keystore configurations to meet enterprise-grade financial standards.
- Overhauled iOS and Android build configurations to guarantee compliance with the latest Apple App Store guidelines and Google Play's 16KB memory page alignment for Android 15+ devices.
Key Project: AMAN SuperApp — Egypt's leading fintech SuperApp (Raya Holding) serving 1.8M+ users across 120+ micro-services.
Tech Stack: React Native CLI, TypeScript, Redux Toolkit, RTK Query, Push Notifications (FCM), Native Biometrics (FaceID/TouchID), Keychain Security, Network Security Config
Jun 2025 - Dec 2025
Senior React Native Developer
Mastery Grade — Remote
- Architected and executed the greenfield mobile development of a comprehensive educational ecosystem from scratch using React Native CLI, delivering the production-ready product within schedule.
- Owned the complete engineering lifecycle, establishing robust folder structures, scalable state design, automated CI/CD pipelines, and executing successful deployments to both the Apple App Store and Google Play Store.
- Engineered complex data dashboards, student progress tracking, role-based access workflows, and real-time attendance management modules.
- Architected an offline-first state synchronization engine utilizing local data caching and offline synchronization logic to guarantee seamless application usability and local database stability in low-connectivity school environments.
Key Project: Mastery Grade Educational Ecosystem.
Tech Stack: React Native CLI, TypeScript, Zustand, React Query, WatermelonDB, Local Data Sync Caching, TailwindCSS/NativeWind, Fastlane
Jan 2024 - May 2025
React Native Developer
CCIT Software Solutions — Riyadh, Saudi Arabia
- Engineered, tested, and deployed 3+ production-grade mobile applications from inception to market launch.
- Refactored legacy codebases to improve rendering performance, reducing memory leaks and fixing critical production-level bugs to elevate overall application performance.
- Monitored system health utilizing Firebase Crashlytics and performance monitoring tools, proactively resolving runtime bugs to maintain a 99.9% crash-free user rate.
Key Projects: Ezhalha (Automotive & Marketplace SuperApp), SKIP App (KSA Food Delivery Network), and Crowdy (Digital Ads Platform).
Tech Stack: React Native, Redux Toolkit, Google Maps SDK, Firebase Analytics, REST APIs
Nov 2022 - Oct 2023
React Native Developer
Business Valley / Robosto — Cairo, Egypt
- Improved front-end performance by identifying and eliminating rendering bottlenecks, optimizing list rendering speeds using specialized FlatList configurations.
- Refactored app UI components and state management architecture for enhanced scalability and long-term maintainability.
- Integrated Facebook Pixel SDK to track, measure, and optimize targeted marketing campaigns for user acquisition.
- Leveraged Firebase Analytics and Crashlytics to gather real-time insights into user interaction and prioritize high-impact bug fixes.
Key Project: Robosto — On-demand grocery and home-needs delivery platform.
Tech Stack: React Native, JavaScript, Context API, Facebook Pixel SDK, Firebase
Feb 2022 - Oct 2022
React Native Developer
Heck Yeah SAS — France (Remote)
- Implemented Twilio Video SDK for stable, low-latency one-to-one and group video sessions, ensuring proper device permission handling and stream optimization.
- Built custom scheduling and real-time appointment booking workflows synced with background notification mechanisms.
Key Project: Heck Yeah — Online personal fitness coaching platform connecting users with trainers worldwide.
Tech Stack: React Native, Twilio Video SDK, WebSockets, Scheduled Local Notifications
Dec 2020 - Dec 2021
React Native Developer
Tech Village Egypt — New Cairo, Egypt
- Developed and maintained multiple cross-platform mobile applications, boosting general UI/UX responsiveness and reducing customer-reported layout issues.
Key Projects: Doctors Admin App (Healthcare administration), Aleffak (Vet booking), Orri Sushi (Food delivery), and Banktot (Gamified quiz app).
Tech Stack: React Native, JavaScript, Redux, Lottie Animations, React Navigation
Academic Background
Education & Certifications.
Education
Bachelor of Science in Computer Science
Faculty of Science - Damanhour University
Certifications
- CS50 Mobile App Development with React Native - Harvard University
- React Native Advanced Concepts - Udemy
Get in touch
Let's build scalable mobile applications together.
I am currently open to new opportunities. Reach out if you're looking for a dedicated Senior React Native Developer to lead your mobile initiatives.