Built and managed modular frontend features for RI & NRI users in a micro-frontend monorepo setup, ensuring scalable, maintainable, and high-performance applications. Led the ReKYC module, handling 800+ NRI & RI requests on Day 1 with zero downtime, driving 10% YoY volume growth and reinforcing compliance reliability. Enhanced PayAbroad (forex platform) serving 200 Cr+ transactions, sustaining a 98% success rate across cross-border payments. Improved app performance and load times via memoization, lazy loading, virtualization, and image optimization, ensuring smoother UX and reduced rendering latency. Designed and delivered reusable UI components with the Optimus Design System, accelerating delivery and maintaining design consistency across customer journeys. Ensured bug-free and regression-free releases with 500+ Jest tests (95%+ critical flow coverage), following TDD and automated regression checks. Cut frontend errors by 42% in two quarters, achieving 97%+ system reliability through robust validation, error boundaries, and fallback logic. Led and mentored a team of 5 developers, improving code quality, onboarding efficiency, and delivery timelines by 15%. Collaborated with Product, BA, and QA teams for requirement analysis, architecture discussions, and sprint planning, reducing rework and ensuring alignment. Troubleshot and resolved production incidents using Jaeger, Grafana, and Reactotron, enabling fast recovery and stable releases. Advocated Redux and Recoil (Atom state) over Context for large-scale workflows, improving state predictability and debugging ease.