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I'm a mobile application developer specializing in native Android and iOS development. I build maintainable apps using Kotlin, Jetpack Compose, Swift, and SwiftUI, with hands-on experience applying MVVM and Clean Architecture to deliver scalable software. I excel at integrating REST APIs, handling authentication flows, and implementing local storage and UI state management. I thrive collaborating with designers, backend engineers, and QA teams in Agile environments to ship reliable, high-quality releases.…I'm a mobile application developer specializing in native Android and iOS development. I build maintainable apps using Kotlin, Jetpack Compose, Swift, and SwiftUI, with hands-on experience applying MVVM and Clean Architecture to deliver scalable software. I excel at integrating REST APIs, handling authentication flows, and implementing local storage and UI state management. I thrive collaborating with designers, backend engineers, and QA teams in Agile environments to ship reliable, high-quality releases.

RONJIE DIAFANTE MAN-ON

PRO

Programmer, Developer, App Developer

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I'm a mobile application developer specializing in native Android and iOS development. I build maintainable apps using Kotlin, Jetpack Compose, Swift, and SwiftUI, with hands-on experience applying MVVM and Clean Architecture to deliver scalable software. I excel at integrating REST APIs, handling authentication flows, and implementing local storage and UI state management. I thrive collaborating with designers, backend engineers, and QA teams in Agile environments to ship reliable, high-quality releases.…I'm a mobile application developer specializing in native Android and iOS development. I build maintainable apps using Kotlin, Jetpack Compose, Swift, and SwiftUI, with hands-on experience applying MVVM and Clean Architecture to deliver scalable software. I excel at integrating REST APIs, handling authentication flows, and implementing local storage and UI state management. I thrive collaborating with designers, backend engineers, and QA teams in Agile environments to ship reliable, high-quality releases.

Available to hire

Cebu City, Philippines

I’m a mobile application developer specializing in native Android and iOS development. I build maintainable apps using Kotlin, Jetpack Compose, Swift, and SwiftUI, with hands-on experience applying MVVM and Clean Architecture to deliver scalable software.

I excel at integrating REST APIs, handling authentication flows, and implementing local storage and UI state management. I thrive collaborating with designers, backend engineers, and QA teams in Agile environments to ship reliable, high-quality releases.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Tagalog

Advanced

Work Experience

Mobile Developer at Vauldex Technologies Inc

January 1, 2023 - Present

Developed and maintained mobile applications using Kotlin (Jetpack Compose) and Swift (SwiftUI) with MVVM architecture. Utilized Jetpack and SwiftUI libraries (Coroutines, ViewModel, Navigation, Room) for efficient, scalable development. Managed Play Store and App Store releases, handled bug fixes, and improved app stability. Collaborated with designers, backend engineers, and product teams to deliver seamless, high-quality user experiences across Android, iOS, iPadOS, and macOS platforms.

Machine Operator and Maintenance at LAMCOR

August 31, 2015 - July 29, 2025

Operated and maintained industrial machinery, ensuring smooth and efficient production. Performed routine inspections, troubleshooting, and preventive maintenance to minimize downtime. Diagnosed and repaired mechanical and electrical issues to maintain optimal machine performance.

Mobile Application Developer at Vauldex Technologies Inc

January 1, 2023 - Present

Develop and maintain native Android and iOS mobile applications using Kotlin and Jetpack Compose and for iOS using Swift and SwiftUI. Build modular, testable features using MVVM and Clean Architecture to improve maintainability and support long-term scalability. Integrate REST APIs, authentication flows, local storage, and state management to deliver reliable user experiences. Collaborate with designers, backend engineers, and QA teams in Agile/Scrum workflows, including sprint planning, code reviews, testing, and release preparation. Troubleshoot issues, profile application behavior, and support quality assurance activities to help deliver stable production releases.