Rio Ephraim Miranda

Built video editing tools emphasizing timeline editing, filters, and effects, ensuring compatibility across diverse video formats using FFmpeg. Designed modular export systems with format and resolution flexibility. Improved performance of video rendering pipeline reducing processing times by 25%. Added hardware acceleration and batch processing features, enhanced UI for intuitive effect application. Handled debugging and memory optimizations, integrated third-party plugins, and cloud project saving workflows. Collaborated with UX designers to refine user controls and interface.

Developed cross-platform mobile applications using Flutter and React Native with focus on video editing functionalities including timeline editing, filters, effects, and export options. Optimized timeline editing performance for low-end devices via lazy rendering and memory management. Integrated FFmpeg filters and effects for smooth playback and export, collaborated closely with designers for intuitive UI/UX. Enhanced export options supporting multiple formats and resolutions, reduced app load time by 30% with lazy loading and modular architecture. Added advanced features such as keyframe animations, drag-and-drop clip arrangement, audio waveform visualization, plugin integration, and cloud storage. Led user testing improving engagement and retention rates.

Rebuilt donation platform mobile apps consolidating multiple native apps into a unified React Native codebase. Implemented real-time updates via Firebase and WebSocket, secure payment integrations with Stripe, Apple Pay, and Google Pay, and offline caching features. Enabled push notifications and dynamic white-label theming. Automated CI/CD pipelines using Fastlane, GitHub Actions, and Docker. Integrated analytics, biometric authentication, admin tools, and secure API communications with JWT and OAuth2.