Hi, I’m Ruzain Abdurahman

I build

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About

Android Developer with 3+ years of professional experience building scalable mobile applications using Kotlin, MVVM, and Clean Architecture. Experienced in Android TV, Firebase, REST APIs, and offline‑first systems.

Skills

Native Android development with Kotlin & Jetpack
MVVM & Clean Architecture for maintainable code
Firebase, REST APIs, Room & offline-first apps
Flutter (IBM Certified) & Git-based workflows

Projects

OneDi Bus Ticketing App

Native Android application for public transport ticketing with NFC-based payments. Contributed to core feature development and performance improvements, resulting in approximately 40% revenue increase.

Chandini Automobiles DSR App

Sales and daily collection reporting application for an oil distribution company. Designed for offline usage with automated report generation to improve operational efficiency.

OneDi Passenger App

Passenger-facing ride booking and real-time tracking application for buses and autos. Improved usability and performance, leading to a 30% increase in app downloads.

OneDi Pilot App

Operator-focused Android application for managing daily trips, analytics, and operational reporting for transport services.

OneDi Media

Android TV–based digital advertising platform for transit vehicles. Optimized UI and playback reliability for large-screen displays.

Certifications

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Flutter and Dart: Developing iOS, Android, and Mobile Apps

Issued by IBM · November 2025

Professional certification covering Flutter and Dart fundamentals, cross-platform mobile application development, UI design, state management, and deployment for Android and iOS platforms.

Credential ID: 58ZBK02VGRJW

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Contact

I’m open to full-time roles, freelance projects, and collaborative opportunities. If you’re building something meaningful and need a reliable Android developer, let’s talk.

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