Senior Shopify developer, 9+ years building and maintaining stores across retail and healthcare commerce. Deep in Liquid, Online Store 2.0 theme architecture, and section/block systems that let marketing teams build pages without a developer. Strong on HTML5, CSS3, and JavaScript with responsive layouts tested on real devices, plus Core Web Vitals tuning and technical SEO across a large number of launched storefronts. Experienced with third-party app, payment gateway, and shipping integrations, and with the debugging work that follows when they conflict. Also builds custom Shopify apps in React/TypeScript — embedded admin apps on App Bridge and Polaris, and Admin GraphQL integrations using bulk operations, cursor pagination, cost-aware throttling, and HMAC-verified webhooks with idempotent handlers. Git-based workflow, shipping through Shopify CLI and GitHub Actions with gated releases and fast rollback.