Led the frontend implementation of Google Sign-In for TIDAL, managing evolving requirements and coordination across backend, QA, design, and product teams. I helped clarify ownership, unblocked decision points, and maintained code quality despite frequent changes. I also addressed edge cases such as age gating, user consent, and dynamic UI behavior. The result was a stable, user-friendly integration that improved signup completion rates, especially on Android. Tech used: Vue.js, TypeScript, REST APIs, OAuth2, CI/CD, QA collaboration