Muhammad Ehtesham Ayyaz

I’m a results-driven front-end and Shopify developer with 2+ years of hands-on experience building high-performance single-page applications (SPAs) with React.js and JavaScript (ES6+). I focus on translating complex requirements into scalable, pixel-perfect, mobile-first user experiences with measurable impact on conversion rate optimization (CRO) and Core Web Vitals.

In Shopify projects, I specialize in Shopify 2.0 Theme Customization using Liquid templating and Online Store 2.0 (OS 2.0) architecture. I’ve used Shopify Winter 2026 Edition features like advanced Metaobjects and Checkout Extensibility to deliver robust B2B functionality and personalized buyer experiences that increased average order value.

I also build headless commerce solutions using the Shopify Storefront API (GraphQL) to decouple the front-end from the Shopify backend. To keep storefronts reliable under pressure, I engineer secure integrations with third-party Shopify applications and payment gateways like Stripe and PayPal, resolving CORS anomalies and API rate-limiting issues to maintain zero transaction downtime during peak traffic.

On the web performance and quality side, I implement SEO best practices (structured data markup, canonical tags, and sitemap optimization) and optimize speed using asset minification, lazy loading, and critical CSS strategies. I apply React performance techniques like lazy loading, memoization (useMemo, useCallback), and code splitting, collaborating in Agile teams with Git/GitHub to deliver clean, modular component architecture.