• Design and deliver medium-to-large features across fan-facing and operator-facing ticketing workflows. • Build and improve React + TypeScript web experiences and React Native mobile functionality in production systems. • Partner with backend teams on API contracts, data correctness, and failure handling in trust-critical paths. • Strengthen frontend architecture to improve maintainability, delivery speed, and cross-team contribution safety. • Improve observability for key user journeys with meaningful telemetry, alerts, and post-release verification. • Drive practical testing strategy across unit, integration, and end-to-end layers for high-risk workflows. • Support incident triage, production debugging, and root-cause follow-through for customer-impacting issues. • Collaborate closely with product, design, and platform peers to turn roadmap goals into executable technical slices. • Mentor engineers through design reviews, implementation guidance, and hands-on code collaboration.