As Technical Lead for two critical Tier-1 services on the Prime Video API team, I ensured reliable delivery of content and metadata powering the Prime Video storefront for 200M+ monthly users. I drove architectural improvements that increased service availability over 10x, maintained peak performance during live events up to 133k TPS, enabled major UI updates, and enabled new interactive features like Q&A widgets for live events, the Explore tab on detail pages, and enhanced episode lists.