Ali S.
100% Job Success
Top Rated Plus

Mobile App Developer, Designer | iOS, Android | React Native, Flutter

🏆 Trusted Mobile App Developer | Building high-quality apps for long-term clients (87%) I'm a mobile app developer with 12 years of experience building successful apps for clients on Upwork. I have a strong track record of exceeding expectations, with a ⭐⭐⭐⭐⭐ client rating and over 41 completed projects. Key Skills: ✅Skilled in iOS (Swift, Objective-C), Android (Java, Kotlin), and cross-platform development (React Native, Flutter). ✅ Experience with APIs and SDKs(not limited to): Google Maps, Google Places, Google Analytics, Sqlite, Parse Server, Realm, Twilio, Stripe,, Crashlytics, Answers, Branch, Firebase, AFNetworking, Facebook SDK, Graph API, Twitter API, Instagram API, Mailchimp Experience: I combine extensive technical expertise with excellent communication skills to ensure your project's success. Here's a glimpse of what I can offer: 1. Developed an e-commerce app with Firebase for real-time product updates and a seamless user experience. 2. Built a social networking app using React Native, enabling efficient scalability and a consistent user interface across platforms. 3. Resolved a critical bug in a client's iOS app, ensuring smooth operation and preventing further issues. 👨 I'm passionate about building high-quality mobile apps that not only function flawlessly but also exceed your expectations. If you're looking for a reliable and experienced developer who prioritizes clear communication and client satisfaction, I'd love to hear from you! 🙏Thank you for taking the time to look over my profile.
Work history


  • Native App Development
  • React Native
  • Swift
  • Flutter
  • API Integration
  • Figma
  • UI/UX Prototyping


Endorsements from past clients

"Had the pleasure to work with Mr.Sufyan on development of our new mobile application and also for some updates pertaining to an existing web project of ours. Mr. Sufyan diligently worked with us and ensured industry standard implementation of Flutter, Python and Firebase for our projects. The Outcome has been very satisfying and we would be keen on acquiring his services again."

Ali A.
Sep 2022


"I have worked with Ali S. for his mobile application services. Belonging to a technical background myself, I was keeping an eye on the backend side, and can safely affirm that his team was extremely professional with development, along with creative problem solving skills. They addressed all the queries I had regarding the project while maintaining and conforming to the deadline with required standards. Ali has an eye for detail and quality. Overall, it was a fantastic experience working with Ali's team."

Nauman T. | Principal Software Engineer
Aug 2022


"If you have the opportunity to work with Ali, I say go for it! You are guaranteed an enjoyable and productive experience. Ali is skilled at what he does, and we look forward to working with him again for our next IT project!"

Abdul G. | Senior Programmer Analyst
Aug 2022


"I had a relatively large app to develop So I hired Ali and worked with him throughout the entire process. He understood my vision and communicated with me clearly and thoughtfully. I would 100% recommend Ali for any mobile app needs you may have. He is thorough in understanding your vision and works diligently with his team to complete the work in a timely manner! Thanks for all your work, Ali!"

Mubasher I. | Project Manager
Apr 2022


"I hired Ali S. to develop a mobile app, it was indeed a great pleasure working with him. Ali is reliable, professional and very knowledgeable. I highly recommend him"

Muhammad Uzair T. | Senior Software Engineer
Apr 2022