Design, build, and maintain a React Native mobile app (with native modules and Kotlin Multiplatform). Deliver polished, offline-capable features, resolve performance and scalability issues, participate in code/design reviews, and provide architectural guidance while collaborating with cross-functional teams.

Design, build, and maintain web and mobile applications (React, React Native, NextJS, NodeJS, Python, SQL). Deliver medium-to-large features independently, collaborate with cross-functional teams, conduct code and design reviews, resolve performance and scalability issues, and guide architecture and best practices as the product scales.