Vien Nguyen - Tech Lead (iOS-Android), Author at Saigon Technology

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Vien Nguyen

Tech Lead (iOS-Android)

With 8 years of iOS development experience, Vien specializes in building efficient, responsive, and user-friendly applications using Swift, RxSwift, Realm, and Auto Layout, delivering smooth UI/UX with meaningful animations. He has also worked with international teams across Singapore, Hong Kong, Switzerland, England, Australia, and Vietnam.

iOS DevelopmentFlutterSwiftDartMVVMRealm/SQLiteRxSwiftBLoC

Expertise

Reactive programming with RxSwift / Combine

Clean Architecture, MVVM, MVC, VIP

iOS UI development: Auto Layout, SnapKit, SwiftUI

Flutter UI development & state management: BLoC, GetX

RESTful API integration: Moya, Alamofire, Dio

Local database management: Realm, SQLite, Floor (Flutter)

Achievements

8+ years experience in Mobile Development (iOS & Flutter)

Delivered apps for multiple countries: Singapore, Hong Kong, Switzerland, England, Australia, Vietnam

Built and maintained production apps using RxSwift + Clean Architecture for long-term scalability

Successfully implemented StoreKit2 In-App Purchase in native iOS and bridged to Flutter via Method Channel

Refactored architecture from VIP → MVVM to improve maintainability and code quality

Implemented offline-first systems with local DB + synchronization when internet is available

Developed apps supporting multiple devices: iPhone / iPad / Table

Certifications

Bachelor of Engineering in Information Technology

200+ stars in GitHub

Insights

Automated Localization Script

Automated Localization Script

Google Sheets and Scripts can make working with multiple languages a lot easier, especially in mobile development and front-end and back-end development.

Vien Nguyen - Tech Lead (iOS-Android)

Hybrid App Development: A Practical Decision Guide for Businesses

Hybrid App Development: A Practical Decision Guide for Businesses

Learn what hybrid app development really means, when it wins, where it fails, and how to choose frameworks with a practical checklist for decision-makers.

Vien Nguyen - Tech Lead (iOS-Android)

If you have any questions about Saigon Technology?

Please feel free to contact us for the best support.

Mike: +84 906 939 804

Ann: +84 962 638 169