Tuong N.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I deliver high-performance mobile and backend solutions for startups and SMBs using cutting-edge technologies. Mobile Development (iOS): • Swift, SwiftUI, UIKit, Objective-C • MVVM, VIPER, Clean Architecture • Firebase, CoreData, RESTful APIs • Combine, Swift Concurrency, RxSwift Backend Development (Java): • Spring Boot, Spring Security, Spring Data JPA • Microservices Architecture, REST APIs • MySQL, PostgreSQL, MongoDB • Docker, AWS, CI/CD pipelines Integration & Tools: • Third-party SDKs (Twilio, SendBird, Google Maps) • Git, Maven, Gradle, Postman • Xcode, IntelliJ IDEA, TestFlight What You Get: ✓ End-to-end development (mobile + backend) ✓ Scalable, secure architecture ✓ Direct work (no outsourcing) ✓ 100% client satisfaction guarantee Whether you need a complete mobile app with backend or just one piece of the puzzle, I've got you covered. Let's build something great together!