David Cardozo

Led the transition to Jetpack Compose, reducing development time by 30% and boosting user satisfaction ratings by 25%; coordinated cross-functional product and architecture planning across five major releases, improving delivery timelines by 20% and enabling localization for Hungary and Brazil.

Developed multi-SIM, family plan, and rewards features for 500,000+ active users; mentored 10 junior developers to boost team efficiency ~40% and reduce onboarding by two weeks, while modularizing the codebase to cut build time ~50% and raise maintainability to 90%+.

Enhanced buy/sell ticket flows used by over 16 million active users, optimizing the purchasing journey to increase conversion rates and improve user satisfaction; enforced code quality through reviews and timely bug resolution to strengthen maintainability.

Designed and implemented architecture and user interfaces for a payroll app serving small businesses, ensuring accurate payroll processing and scalable, maintainable code.

Developed diverse Android apps (gallery, TV guide, property search, readers), collaborated with cross-functional teams, researched architecture best practices, and provided project estimates to improve delivery and client satisfaction.

Activities and societies: Completed advanced courses in Jetpack Compose and Android app architecture.

Completed a Bachelor's degree in Systems Engineering, graduating in September 2009.