• Design, build, and maintain high-performance, scalable Android applications using Kotlin (primary) and Java (when needed). • Collaborate closely with product managers, designers, QA engineers, and backend teams to define requirements and deliver polished features. • Translate business and user requirements into clean, maintainable, and testable code following modern Android architecture best practices (MVVM, MVI, Clean Architecture). • Implement pixel-perfect UI/UX following Material Design 3 guidelines and ensuring excellent performance across a wide range of Android devices and OS versions. • Integrate REST/GraphQL APIs, handle offline support, data persistence (Room,DataStore), secure authentication, push notifications, and analytics. • Write robust unit, integration, and UI tests (JUnit, Espresso, Robolectric, MockK). • Participate in code reviews, architectural discussions, and continuous improvement of the mobile codebase. • Localize app content and UI strings for English and Spanish-speaking users; adapt features to regional preferences and compliance requirements. • Communicate effectively in both English and Spanish during meetings, documentation, user support tickets, and stakeholder updates. • Debug and resolve production issues quickly while maintaining high code quality and app stability. • Stay current with Android ecosystem changes (new Jetpack libraries, Kotlin Multiplatform Mobile when relevant, Google Play policies, etc.)