DOAN DUY PHUONG
iOS Software Engineer
I build iOS apps used by millions — from design systems that cut dev time by 40% to App Store products across fintech, security, and IoT. 5+ years with Swift, SwiftUI, and UIKit.
About Me
I'm a passionate Software Engineer with over 5 years of experience building high-quality mobile applications. My expertise spans native iOS development with Swift, SwiftUI, and UIKit, as well as cross-platform development with React Native.
I take pride in delivering fast, reliable, and beautifully crafted user experiences that adhere to Apple's design guidelines and modern best practices. I'm constantly learning and leveraging AI-assisted development tools to accelerate innovation.
Currently working at Axon Active, I've successfully built design systems adopted by multiple teams, reducing UI development time by 40% and visual bugs by 60%.
Work Experience
Software Engineer (iOS)
Axon Active
Ho Chi Minh
- ▸Built a design system library supporting 4 dynamic appearances with customizable brand colors, adopted by 3+ teams, reducing UI development time by 40% across ePost iOS app
- ▸Architected a scalable component framework enabling theme switching and appearance customization, eliminating code duplication for 15+ core UI components
- ▸Migrated core production features to a new design system, improving UI consistency and reducing visual bugs by 60% based on QA reports
- ▸Leveraged AI-assisted development (Claude, ChatGPT, Grok) to accelerate research and implementation, increasing development velocity by 60%
Software Engineer (iOS)
S3 Corp
Ho Chi Minh
- ▸Collaborated with a dynamic design team to create app user experience in adherence to Apple's user interface guidelines
- ▸Utilized the latest Swift version and Xcode to develop features, aligning with MVVM architecture and SOLID principles
- ▸Strictly followed Agile methodologies to drive the product, wrote unit tests using XCTest, achieving 90% coverage at the ViewModel layer
- ▸Facilitated API integration for user data and push notifications using NWWebSocket for real-time connections
iOS Engineer
ZILLEARN
Ho Chi Minh
- ▸Maintained and implemented improvements for existing features
- ▸Developed CI/CD pipelines for automated deployment, supporting QA testing process
- ▸Led efforts to refactor and update the project's architecture
- ▸Developed UI/UX for tvOS enabling users to manage courses and learn from their Apple TV using AVFoundation
Software Engineer (iOS) - Team Leader
WINDSCRIBE
Canada Client
- ▸Led a team of 2-3 members, developing task plans and conducting code reviews
- ▸Engaged in strategic discussions with CEO and CTO, contributing to brainstorming sessions for new features and maintenance
- ▸Implemented CI/CD pipelines for automated deployment to QA environment using Bitrise
Skills & Technologies
Languages
Frameworks
Tools
Services
Architecture
AI-Assisted Dev
Expertise
Featured Projects
Darkin Smart Home
iOS app for controlling Darkin Air conditioners using NWWebSocket for real-time communication.
Side Projects
Open-source tools and personal projects I've built to solve real problems. Contributions and feedback are always welcome.
Let's Work Together
Open to full-time roles and contract projects — remote or based in Ho Chi Minh City, Vietnam. Drop me a message and I'll get back to you within 24 hours.