AHT TECH is a premium global group providing comprehensive technology consulting solutions, specializing in Commerce and Digital Experience in Vietnam. Established in 2007, we have multiple branches and representative offices in Vietnam, Malaysia, Japan. Proud to offer a dynamic working environment with abundant growth opportunities, AHT Tech has become home to over 300 professionals worldwide.

Website: www.arrowhitech.com

• Contract type: Service contract (Full-time)
• Domain: Marketplace E-commerce Platform
• Salary range: Upto 40M Gross

KEY RESPONSIBILITIES

• Build and maintain iOS features using Swift, UIKit, and project Coordinator + MVVM patterns.
• Implement feature screens with ViewController, ViewModel, Coordinator, and service layers that match the existing structure.
• Bind user events and state using RxSwift/RxCocoa/RxRelay input/output transforms.
• Work with shared ApiService, authenticated requests, refresh-token handling, app session state, deep links, and environment-specific configuration.
• Support app flows such as onboarding, login, home, shop, rewards, profile, notifications, payment, QR scanning, and mobile bill offset.
• Integrate and maintain Firebase, AppsFlyer, Clarity, TikTok, Meta/Facebook, push notifications, and analytics/tracking events.
• Support dev/staging/production schemes, SPM dependencies, Git LFS Unity assets, Fastlane, Firebase distribution, and TestFlight release workflows.
• Add focused XCTest/RxTest coverage for view models, services, parsers, and critical flows.

REQUIREMENTS

• 3+ years of professional iOS development experience, or stronger mid-level experience with production apps.
• Strong Swift and UIKit experience.
• Practical experience with Coordinator, MVVM, reactive binding, and service-driven feature architecture.
• Experience with RxSwift/RxCocoa/RxRelay, or strong reactive-programming experience with willingness to work in Rx-first code.
• Understanding of REST API integration, authentication, token refresh, error handling, and environment configuration.
• Experience with XCTest and test doubles for network/service boundaries.
• Ability to work safely in an existing production codebase with multiple schemes, SDK integrations, and release workflows.
• Fluent in English 4 skills, especially speaking.

Nice-To-Have 

• SwiftUI interoperability experience, especially hosting SwiftUI inside UIKit-owned navigation.
• Fastlane, Firebase App Distribution, TestFlight, SPM, Git LFS, and Xcode build troubleshooting.
• Embedded Unity/game integration, JWT/crypto, encrypted APIs, deep links, associated domains, or push notification extensions.
• Firebase, AppsFlyer, Clarity, TikTok Business SDK, Meta/Facebook SDK, Lottie, SDWebImage, or similar SDK experience.
• Loyalty, rewards, telco, payment, QR, or consumer mobile app experience.