Hi, I'm Vatana Chhorn
Mobile Developer
An Mobile Developer specializing in iOS, with expertise in Swift, Kotlin, UIKit, and SwiftUI, and a strong focus on building intuitive, visually appealing user experiences.
I’ve led high-impact projects like a money tracker app at Paraga with over 2 million users and delivered successful products at Dynomite that reached thousands in Cambodia.
About Me
I am an experienced Mobile Developer specializing in iOS development, with a passion for creating exceptional user experiences. I develop high-quality iOS and Android applications using Swift and Kotlin, and I’m well-versed in both UIKit and SwiftUI.
Additionally, I am a UX/UI enthusiast, enabling me to create applications that are not only functional but also visually appealing and intuitive to use. My experience extends to developing tvOS applications, demonstrating my deep understanding of the Apple ecosystem.
I worked @Paraga, turning app ideas into reality. Honed my skills @Okoone, mastering tvOS and app maintenance. Additionally, I also lead Dynomite, where we create iOS apps that positively impact thousands in Cambodia.
🏃♂️ Fun Facts About Me: Beyond coding, I'm a fitness enthusiast, jamming to tunes, exploring local gems, and constantly picking up new skills and hobbies.
Work Experience
Mobile Developer & UI Designer - Dynomite
Sep 2020 - Present- Ported Peak Bondav to Android using Jetpack Compose and Kotlin
- Achieved #2 ranking in Cambodia's Apple App Store
- Led projects from conception to execution, focusing on Cambodian user needs
Android Developer Intern - Daily Prompt
Jun 2025 - Aug 2025- Ensured the app fully adheres to native Android behaviors and Material Design 3 guidelines, targeting a robust MVP for Google Play Store release
- Integrated the Material 3 Theme and developed views fully adhering to Material Design 3 guidelines
- Designed and implemented features utilizing clean architecture
- Leveraged Kotlin Flow and suspend functions to manage asynchronous data streams
- Employed Koin for dependency injection to ensure modular, testable, maintainable code
Software Developer Intern - ITConnexion
Mar 2025 - May 2025- Developed a custom local Expo module to integrate an on-device CoreML model into a React Native app
- Trained a CoreML model using internally annotated data via CreateML
- Implemented an automatic object color extraction feature using k-means clustering and a custom logic pipeline that filters by brightness, saturation, and color distinctiveness
- Prototyped a more advanced color segmentation approach using DETR ResNet-50 for object isolation and dominant colour refinement
- Conducted technical research into cross-platform wireless printing for hybrid mobile apps
- Implemented automated UI testing using Maestro to enhance test efficiency and reliability
Senior iOS Developer - Paraga
Mar 2023 - Feb 2024- Extended app functionality to iPad and Mac Catalyst
- Migrated to SwiftUI and Combine, significantly reducing app size
- Mentored junior developers on SwiftUI, Async/Await, Combine, and RxSwift
- Implemented MVVM-C architecture
Mobile Engineer - Okoone
Oct 2022 - Feb 2023- Developed and maintained RxSwift/RxCocoa projects
- Managed source code distribution across multiple brands
- Applied Agile methodologies for efficient project execution
iOS Developer - Paraga
Apr 2021 - Oct 2022- Developed Money Tracker, achieving over 2 million user registrations
- Created Smart Calendar KH with over 10,000 daily users
- Developed the internationally successful Thai Buddhist Calendar app
Projects & Achievements
Vapeo: Quit Vaping
AI-powered quit vaping app helping users track progress, stay motivated, and save money.
- Winner of the Swinburne Design for Change Competition 2025
- Track vape-free streaks, cravings, and money saved
- Personalized plans, daily affirmations, and habit insights
- Premium subscription with additional features
Money Tracker
A streamlined expense tracking app with a clean, modern design that provides users with a holistic view of their monthly spending habits.
- Implemented home screen widgets for quick expense entry
- Designed intuitive data visualization for spending analysis
- Integrated Firebase for secure, real-time data synchronization
Thai Buddhist Calendar
A comprehensive calendar app containing holidays and Buddhist holy days from 2443 to 2643 BE, helping users track and observe important religious dates.
- Implemented complex date calculations for Buddhist calendar holidays
- Created an intuitive interface for navigating across centuries of dates
- Included detailed information about religious observances and traditions
- Optimized for performance despite large date range coverage
Khmer Smart Calendar
A specialized calendar application built exclusively for Cambodian users, featuring traditional Khmer dates, holidays, and cultural events.
- Engineered complex date conversion between Gregorian and Khmer calendar systems
- Implemented in-app purchase system for premium features
- Created culturally authentic UI/UX tailored to Cambodian users
- Optimized for different device sizes and orientations
Khmer Knowledge Quiz
An engaging quiz game designed to test and enhance users' general knowledge, culture, history, and global affairs.
- Designed question bank with progressive difficulty levels
- Implemented SQL database for efficient question retrieval
- Created gamification elements to enhance user engagement
- Developed scoring and achievement system
tvOS App Development
tvOS App Development
Enhanced and maintained functionality for key tvOS streaming applications, ensuring optimal performance and user experience on Apple TV devices.
- Maintained and updated existing tvOS applications
- Implemented new features and functionality improvements
- Optimized video streaming performance for TV displays
- Integrated with various content provider APIs
Anniversary: Love Reminders
A thoughtful app designed to help couples nurture their relationships through anniversary reminders, event tracking, journaling, and other features that foster healthy relationships.
- Developing intuitive reminder system for relationship milestones
- Creating private journaling functionality for couples
- Designing relationship enhancement activities and suggestions
Peak Bondav
An interactive game that preserves Cambodian heritage by bringing traditional Khmer riddles to a digital platform, creating a vibrant bridge between generations.
- Implemented in-app purchases for additional content
- Created an authentic collection of traditional Khmer riddles
- Designed culturally appropriate visuals and sound effects
Khmer Dictionary: Chuon Nath
A digital adaptation of Sâmdăch Preăh Sángréach Chuŏn Nat Choŭtănhéanaô's authoritative Khmer-Khmer dictionary, making this important cultural resource accessible to digital users.
- Implemented efficient search algorithms for Khmer script
- Created offline-first architecture using Realm Database
- Designed intuitive UI for dictionary navigation
- Optimized storage and retrieval of extensive dictionary entries
Technical Skills
Programming Languages
Frameworks & Libraries
Databases
Tools
Architectures
Education
Master of Information Technology
PresentSwinburne University of Technology
George Swinburne Postgraduate STEM Scholarship recipient
B.S. Software Engineering
2023Hangzhou Dianzi University
Chinese Provincial Scholarship, GPA: 4.76/5.0
ACE Diploma in English
2022Australian Centre For Education
Pass with Distinction
Chinese Language Course
2019Guizhou Jiaotong College
HSK 3 (298/300), HSK 4 (289/300)
Get In Touch
Let's build something meaningful together! I specialize in mobile app development, especially within the Apple ecosystem, with a strong focus on performance, design, and user experience. Whether you're building a product, need consulting, or want to collaborate, I'd love to connect.