Android developer

Embedded engineer on multiple client squads (BAZ SuperApp, Bradescard, Elektra, Walmart), owning feature delivery, architecture improvements, and cross-team collaboration for apps serving millions of users. • Led migration from legacy MVC to single-Activity MVVM architecture using Jetpack Navigation Component, reducing the activity count from 6 to 1 and cutting new-engineer onboarding time by ~30%. • Built a credit card transaction review feature using MVVM + Kotlin Coroutines, enabling users to confirm, flag, or dispute charges in-app — reducing customer support escalations. • Implemented real-time card lock/unlock feature integrated with REST API endpoints, improving user-reported security confidence (validated by post-release NPS uplift). • Integrated Android BiometricPrompt API with AES-256 encrypted KeyStore to secure session tokens, replacing password-only login and achieving biometric auth adoption across 60% of active users. • Developed a promotions engine that dynamically fetched and rendered eligible credit card offers via GraphQL, enabling one-tap application to active orders and increasing promo redemption rate by 25%. • Increased unit test coverage from near-zero to 50% across legacy and greenfield modules using JUnit and Mockito, integrated into the CI/CD pipeline. • Implemented push notification infrastructure (FCM) across multiple projects, improving user re-engagement metrics. • Served as technical reviewer for a cross-functional team of Android and iOS engineers, enforcing MVVM patterns, Kotlin best practices, and code coverage standards. • Collaborated directly with backend engineers to design and validate API contracts for new and existing features. • Leveraged GitHub Copilot to accelerate development workflows, including function implementation, unit test generation, and inline code documentation — improving productivity and code consistency across the team.

• Championed Kotlin adoption as the team's primary language, authoring a technical proposal highlighting coroutine-based concurrency, null safety, and reduced boilerplate — leading to unanimous team buy-in and a fully Kotlin greenfield codebase. • Core member of the development team for a digital coin exchange app (real-money rewards); architected the data layer using Room + Retrofit + Hilt with MVVM and Jetpack Navigation Component, shipping the initial release on schedule. • Built a multi-platform social content management app allowing admins to publish posts and stream live video to Facebook and Instagram simultaneously; verified streaming integrity and cross-network post delivery. • Delivered feature enhancements and bug fixes across multiple client applications, improving stability and expanding functionality to meet evolving requirements.

• Led a cross-platform porting team of 5 to 8 engineers, owning code review (SVN), sprint reporting to leadership, and delivery quality across multiple game titles. • Ported 30+ mobile game titles across Android, iOS, and feature-phone platforms, resolving device-specific rendering, audio, and input bugs to maximize the addressable user base. • Owned the Publishing phase for multiple titles: integrated third-party SDKs (sound, Facebook, in-app purchases), reviewed all code before merge, and ensured new changes did not regress the original release build.

• Ported J2ME and Brew game titles across 10+ device configurations, resolving portability issues related to controls, audio, and rendering to expand player reach. • Participated in Publishing-phase launches, adding targeted bug fixes while preserving the integrity of the original game build.