Zain Sheikh

I’m a senior full-stack developer with 6+ years building and improving eCommerce and web applications for clients across the UK, US, and Pakistan. I focus on Shopify (Liquid), WordPress, React.js, and PHP/MySQL—shipping faster, more accessible experiences that convert.

Since Apr 2023, I’ve been delivering custom Shopify and WordPress builds from discovery through launch, consistently raising conversion rates and on-site activity. I rebuilt Core Web Vitals (LCP, CLS, FID), cutting average page-load times by up to 40%, and migrated stores from Magento, WooCommerce, and BigCommerce to Shopify Plus with zero data loss. I also integrate payment gateways (Stripe, PayPal, Klarna), shipping APIs, CRM tools, and marketing platforms via Shopify and REST APIs, while applying WCAG 2.1 accessibility and GDPR/PCI-DSS compliance.

I’m comfortable leading remote development teams, mentoring junior developers, and improving delivery through Git workflows, code reviews, and regular planning/stand-ups. Previously, at 7thClub Marketing Agency, I led end-to-end website delivery, reduced post-launch defects by 60% through functional, interface, and cross-browser testing, and improved performance with caching (WP Rocket, Redis) and WebP compression while using GA4, GTM, and Hotjar to guide CRO decisions.