Designed and implemented enterprise-grade mobile architectures using Clean Architecture, MVVM, and modular design. Led cross-platform development across Flutter, React Native, Kotlin, and Swift, enabling independent feature development and faster onboarding. Delivered scalable mobile apps serving 1M+ MAU; improved startup time and UI performance; implemented offline-first systems with local persistence, caches, background sync, and retry strategies. Integrated secure authentication (OAuth2, JWT, biometrics) and payments (Apple Pay, Google Pay, Stripe, in-app purchases). Built CI/CD pipelines with Fastlane and GitHub Actions for automated builds and staged releases; reduced release cycles and improved reliability. Mentored junior/mid-level engineers and collaborated with product, backend, DevOps, QA, and security teams to ensure maintainability and compliance.

Mobile Application Developer at Transcure

July 1, 2019 - December 1, 2022

Played a key role in migrating legacy native apps to Flutter and React Native, reducing maintenance overhead and accelerating feature velocity. Designed scalable UI component libraries and shared business logic to ensure cross-platform consistency. Implemented state management solutions (Bloc, Redux, MVVM) and integrated REST APIs, Firebase (Auth, Firestore, Cloud Functions, FCM), and analytics. Implemented offline-first architecture with local persistence, intelligent caching, and background processing. Led native app releases and App Store/Play Store signing, hotfix deployments, and staged rollouts. Collaborated with designers to deliver pixel-perfect, accessible UI, and participated in Agile/Scrum ceremonies. Authored architectural decisions and onboarding guides for distributed teams; mentored junior developers and helped standardize practices.

Junior Mobile / Android Developer at 10X Club LLC

July 1, 2017 - May 1, 2019

Developed native Android apps using Java and Kotlin following MVVM and clean coding principles. Implemented REST API integrations, authentication workflows (OAuth/JWT), and local persistence with SQLite/Room. Built Material Design UIs with custom views and reusable components. Resolved production issues, improved performance, and enhanced stability based on user feedback and crash reports. Managed App Store and Play Store releases, including signing, compliance checks, versioning, hotfix deployments, and staged rollouts. Collaborated with designers to deliver pixel-perfect UI and contributed to Agile processes; mentored junior developers.