Android Developer Engineer

Engineered the “Shorts” video feed from the ground up, designing a scalable architecture that became a primary engagement driver for the mobile app. Leveraged Jetpack Compose and MVI to ensure high-performance video rendering and a seamless user interface. Contributed to architectural scalability to support high-traffic global events and real-time news delivery.

Architected and led the migration from XML to Jetpack Compose, modernizing 50% of the app’s UI while maintaining strict delivery deadlines. Designed new features using Jetpack Compose with an MVI-style unidirectional data flow (state/events/effects). Directed a cross-functional team (Backend, Android, iOS), managing sprints, 1:1 mentorship, and rigorous code reviews to improve engineering standards. Engineered secure data protocols for direct communication with emergency services (911), ensuring 100% uptime and compliance with public safety standards.

Delivered core features for a US-based user base of 200M+, focusing on codebase stability and high-concurrency performance. Increased unit test coverage from 32% to 87%, significantly reducing regression bugs and improving deployment confidence. Led a strategic refactor to stabilize the MVVM architecture and implement Hilt for robust dependency injection.

Scaled the Restaurant App supporting 400,000+ business partners, ensuring reliability for the largest food delivery platform in Brazil. Facilitated the modernization of native modules and collaborated on cross-platform integration strategies to improve development velocity. Mentored junior and mid-level developers on Clean Architecture and Kotlin best practices.

Optimized network performance, reducing backend requests by 40% through intelligent local caching and UI state management. Improved the user onboarding and login flow, leading to a 17% increase in successful account conversions.