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Hamza A.

Hamza A.

Senior React Native Developer | iOS & Android

Hello! I’m a Senior React Native Developer with 7+ years of experience designing, developing, and scaling high-quality iOS and Android applications. I’ve delivered production-grade mobile solutions for clients across the UK, US, Europe, and Australia, working on apps used by real users in production. I have experience integrating AI-powered features into mobile applications, including AI APIs, intelligent automation, chat-based experiences, and data-driven features, while maintaining clean architecture, strong performance, and a smooth user experience. I specialize in writing maintainable, high-performance code, stabilizing existing apps, and helping teams ship reliable mobile products efficiently. 💼 What I Bring ✅ Senior-level React Native development (iOS & Android) ✅ Feature development, bug fixing, and app upgrades ✅ AI integrations (OpenAI / intelligent APIs) ✅ Backend-aware mobile development (API design & integration) ✅ Clear communication and independent execution 🛠️ Core Technologies • Mobile: React Native, JavaScript, TypeScript • State & UI: Redux, Zustand, MobX, React Navigation • AI Integrations: OpenAI APIs, AI-powered chat & automation • Backend: Node.js, NestJS, Firebase, Supabase • Releases: App Store & Google Play deployment 🎯 Why Clients Choose Me ✨ 7+ years building real production apps ✨ Broad skill set without being niche-limited ✨ Fast, reliable, and professional delivery ✨ Focus on long-term maintainability 💬 Let’s Work Together If you’re looking for a senior React Native developer who can build, fix, or enhance your mobile app — and add AI-powered capabilities when needed — I’d be happy to discuss your project.

🇬🇧Brierfield, United Kingdom$30/hr100% JSS4.80 (7)Since Jan 2021

Earnings and projects

MRR
$1

Last 6 months ÷ 6

World#181,955 / 412k
🇬🇧Country#3,916 / 10.7k
Revenue, last 30 days
$0

Last 6 months: $5

Total earnings
$1.4k

Billed in all: $1.4k

World#364,832 / 412k
🇬🇧Country#9,515 / 10.7k
Per project
$234

$5 in the last 6 months

World#252,446 / 412k
🇬🇧Country#7,055 / 10.7k
Projects, last 6 months
1
100% fixed0% hourly
World#128,092 / 412k
🇬🇧Country#2,874 / 10.7k
Projects in all
6

Across 8 contracts

75% fixed25% hourly
World#250,290 / 412k
🇬🇧Country#6,828 / 10.7k

Earnings, last 30 days

$1.4kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,380$1,400$1,420$1,440Oct 8Oct 23Nov 7

Skill rankings: Top 24% in AWS AppSync

Ranked by MRR among everyone on Upwork with the skill.

  1. #26AWS AppSync109 freelancers · 🇬🇧 #3Top 24%
  2. #100Jest412 freelancers · 🇬🇧 #3Top 24%
  3. #203Unit Testing669 freelancers · 🇬🇧 #4Top 30%
  4. #1,065Kotlin3,021 freelancers · 🇬🇧 #21Top 35%
  5. #1,100GraphQL3,403 freelancers · 🇬🇧 #17Top 32%
  6. #1,174Swift3,634 freelancers · 🇬🇧 #31Top 32%
  7. #1,391CI/CD3,691 freelancers · 🇬🇧 #20Top 38%
  8. #1,445iOS3,908 freelancers · 🇬🇧 #27Top 37%