Seth Aldwin Tolentino

Engineered a full-featured coffee shop e-commerce Android app using Jetpack Compose and Material 3, improving internal QA usability scores by 50% and reducing user error reporting by simplifying flows and responsiveness. Built Kotlin-based field operations apps under Ropali’s LUPA initiative by combining Google Maps (geolocation), CameraX, and ML Kit to automate on-site data capture, achieving 40% faster field reporting and eliminating manual entry errors across 5 regional branches. Implemented and maintained a 3-app Android POS ecosystem for Dino Discovery Park supporting ticketing, queue management, cash payments, and daily remittance tracking (500+ visitors/day), reducing checkout time by 45% and end-of-day reconciliation time by 60%. Applied scalable MVVM architecture with Kotlin Coroutines and Flow for asynchronous state management and real-time data handling, ensuring maintainable code quality and smoother user experiences.

Built a responsive mobile e-commerce application with Material Design alignment and performance improvements. Implemented coroutine-based async flows with LiveData, reduced UI lag, and simplified background processing across modules. Integrated Firebase services for secure auth, persistent data storage, and analytics, while following a modular architecture using layered design and repository pattern. Prepared the app for production using release-focused improvements (Room migrations, crash reporting, and billing integration where applicable).

Developed and maintained an e-commerce mobile app, aligning UI/UX with Material Design, improving usability and reducing QA rework. Implemented Kotlin coroutines and LiveData for async state handling, optimized UI responsiveness, and improved background task management across app modules. Designed modular XML layouts and shared patterns to reduce layout redundancy, applied Agile/Scrum practices with Jira, and improved delivery cadence. Built reusable components and implemented core e-commerce features with Firebase backend integration and production-readiness improvements such as crash reporting and store release preparation.