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Hanzala S.

Hanzala S.

Expert Flutter Developer | Mobile App | Android | iOS | MVP | Firebase

👋 Hey there! I’m Hanzala, a dedicated Flutter Developer with over 4 years of experience in cross-platform mobile app development. I specialize in delivering high-performance, scalable, and aesthetically pleasing mobile applications for both Android and iOS platforms using Flutter and Dart. Recently, I successfully delivered a high-speed Flutter project in just three days, which led to the following client feedback: “His speed in completing tasks was exceptional... His Flutter skills are clearly top-tier. A highly skilled and professional freelancer!" If you're seeking a results-driven mobile app developer who codes cleanly, communicates clearly, and delivers without delays — I'm a reliable solution. 🔧 Core Expertise in Mobile App Development: ✅ Pixel-Perfect UI/UX – Expert at translating Figma and Adobe XD designs into responsive, interactive Flutter UI. ✅ Advanced State Management – Proficient in GetX, Riverpod, Provider, and Bloc for maintainable architecture. ✅ Flutter & Firebase Integration – Authentication, Firestore, Cloud Functions, Push Notifications, and more. ✅ Backend Integration – Robust REST API integration with secure data handling and efficient performance. ✅ Payment Gateway Setup – Hands-on experience with Stripe, Razorpay, PayPal, and In-App Purchases. ✅ Real-Time Application Features – Including socket.io, live chat, push updates, and dynamic data sync. ✅ Performance Optimization – Code profiling, lazy loading, image caching, and battery usage improvements. ✅ Testing & Debugging – Unit, widget, and integration testing to ensure stability across devices. ✅ Deployment & Store Submission – Complete pipeline management for App Store and Google Play Store deployments. 🌍 Industries & Niches Served: • Health & Fitness Applications • E-commerce & Marketplace Apps • SaaS Platforms • Social Networking Apps • AI & Productivity Tools 🤝 Why Clients Choose to Work with Me: 🚀 Rapid Development Cycles – Fast, iterative delivery without compromising code quality. 🧠 Analytical Problem Solving – Skilled in tackling complex logic, third-party integrations, and edge-case handling. 🧼 Clean, Maintainable Code – Follows best practices, scalable architecture, and team-friendly structure. 🔄 Transparent Communication – Prompt responses, regular updates, and a collaborative workflow. ⭐ Client-Focused Delivery – Prioritizing business objectives, user experience, and long-term app success. 📈 Let’s Build Your Next Mobile App Whether it's a Flutter-based MVP, a production-ready mobile solution, or a revamp of an existing app, I provide comprehensive support — from planning and design to development, integration, testing, and deployment. 💬 Reach out today to discuss your project goals. I’m here to help you turn your app idea into a functional, beautiful, and high-performing mobile application.

🇵🇰Karachi, Pakistan$30/hr100% JSS4.95 (9)Since May 2019

Earnings and projects

MRR
$62

Last 6 months ÷ 6

World#146,334 / 412k
🇵🇰Country#21,133 / 52.9k
Revenue, last 30 days
$0

Last 6 months: $371

Total earnings
$3.2k

Billed in all: $3.2k

World#293,328 / 412k
🇵🇰Country#34,839 / 52.9k
Per project
$318

$371 in the last 6 months

World#225,831 / 412k
🇵🇰Country#26,389 / 52.9k
Projects, last 6 months
1
100% fixed0% hourly
World#128,096 / 412k
🇵🇰Country#22,565 / 52.9k
Projects in all
10
90% fixed10% hourly
World#201,801 / 412k
🇵🇰Country#33,132 / 52.9k

Earnings, last 30 days

$3.2kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$3,100$3,150$3,200$3,250Oct 9Oct 24Nov 8

Skill rankings: Top 23% in QR & Barcode Scanner

Ranked by MRR among everyone on Upwork with the skill.

  1. #13QR & Barcode Scanner57 freelancers · 🇵🇰 #2Top 23%
  2. #238Firebase Cloud Firestore869 freelancers · 🇵🇰 #77Top 27%
  3. #507Hybrid App Development1,431 freelancers · 🇵🇰 #154Top 35%
  4. #700AI Mobile App Development1,401 freelancers · 🇵🇰 #245Top 50%
  5. #771Dart2,324 freelancers · 🇵🇰 #222Top 33%
  6. #989App Development2,592 freelancers · 🇵🇰 #205Top 38%
  7. #1,189iOS3,908 freelancers · 🇵🇰 #253Top 30%
  8. #1,393Android4,975 freelancers · 🇵🇰 #271Top 28%