Built a custom iOS native module to drive Ingenico payment hardware from React Native, enabling a complete migration to the new Returns app and the decommissioning of a legacy POS system. Set the integration standards three application teams now follow for stable device connectivity.
Led multi-quarter technical debt initiatives across the Returns app, cutting iOS build times by 50% and raising test coverage by 30%, with material gains in deployment reliability and team velocity. Co-architected a greenfield app whose frontend practices were adopted across multiple Member Desk teams.
Architected a pnpm + Turborepo monorepo housing several React Native apps, a NestJS backend-for-frontend, and supporting services, alongside a set of shared packages (UI, auth, design tokens, TypeScript/ESLint config) so every app drew from one source of truth instead of drifting apart. Turborepo’s task graph and caching kept builds, tests, and typechecks fast as the platform grew, and a new app or service could be scaffolded without reinventing tooling from scratch.
Core architect on a greenfield meal-planning venture built with React Native, NestJS, and GraphQL. Integrated A/B testing and feature flagging for controlled rollout, configured net-new CI/CD pipelines, and partnered with the AI team on personalized recommendations driven by habits and dietary preferences.
Directed a team of 8 engineers through a full frontend migration from React Web/Capacitor to React Native/Expo, and enabled seamless cross-region support inside a single App Store application via a robust build-time localization script.
Refactored the entire UX architecture behind the Roll Up To Win campaign for a more stable experience across 4.3M monthly active users, and improved time-to-interactive by moving complex frontend filtering into an async backend GraphQL layer.
Lead engineer on the migration of a legacy learning platform to a modern React/Redux, Node/Express, and PostgreSQL architecture, while mentoring junior engineers through pairing, code review, and advanced lectures on asynchronicity in JavaScript and machine learning in Python.