Software Engineer (Mobile & Backend) at Alphabet Inc

Engineered and deployed scalable cross-platform mobile applications using Flutter, improving performance and user experience. Designed fintech systems including virtual accounts, payment processing, and identity verification integrations, supporting secure financial transactions. Built a high-performance secure Android POS system enabling multi-channel payments (bank transfers, smart cards, tap-to-pay), reducing payment friction and invoice/receipt printing. Integrated Firebase Cloud Messaging for real-time notifications, improving user engagement and transaction tracing. Led full-stack development of an e-commerce platform (Flutter + NestJS), improving real-time order updates, payment workflows, and customer experience. Architected a multi-tenant architecture enabling scalable data isolation and shared infrastructure. Developed native Android SDK in Kotlin to interface with OEM hardware, enhancing device-level capabilities.