Muhammad A.

Shopify Plus Developer | Custom Themes, Apps & Checkout Extensions

Need a Shopify Plus developer who can handle more than theme edits? I build and improve Shopify stores, custom themes, Shopify apps, checkout experiences, integrations, and performance with a strong focus on conversion and the overall customer experience. I have 4+ years of Shopify development experience and have worked with ecommerce agencies, US brands, and growing ecommerce businesses. My background includes agency work with EcomExperts and Coalition Technologies, as well as owning Shopify development and growth initiatives for Zulay Kitchen. At Zulay Kitchen, I worked across the storefront, UX, CRO, performance, and growth initiatives, helping drive a 50% quarter-over-quarter increase in sales through conversion optimization, UX improvements, performance work, and site-wide experimentation. ### Shopify development • Shopify Plus development • Online Store 2.0 / Dawn • Custom Shopify themes from Figma • Liquid, JavaScript, HTML & CSS • Custom sections and reusable theme architecture • Theme migrations and rebuilds • Product, collection, cart and PDP customization ### Shopify Plus & Checkout • Checkout UI Extensions • Checkout customization • Upsells and subscription experiences • Custom information blocks and banners • Shopify Functions • Shopify Flow • Metafields and Metaobjects I've built custom checkout experiences for brands including Malbon Golf and Pilates Flo. ### Custom apps & integrations I build Shopify apps and custom integrations using: • Shopify GraphQL / Admin API • React • Node.js • Next.js / Remix • REST & GraphQL APIs This includes custom business logic, inventory systems, 3PL/ERP integrations, automation, and internal tools. ### Performance & CRO I also work on the parts of ecommerce that happen after the code is written: • Core Web Vitals • JavaScript/CSS optimization • Theme performance • Product page UX • Cart and conversion flows • CRO experiments • A/B testing • Speed and technical SEO improvements ### Tech stack Shopify Plus · Liquid · Shopify CLI · Online Store 2.0 · Checkout Extensibility · Shopify Functions · GraphQL · JavaScript · React · Next.js · Remix · Node.js · NestJS · MERN · Tailwind · REST APIs · n8n · Zapier · AI/LLM integrations If you need someone who can take ownership of a Shopify project rather than just handle isolated Liquid changes, feel free to reach out. I’m comfortable working from Figma, existing themes, technical requirements, or a rough list of problems that need to be solved. I can help with ✔ Shopify Plus development ✔ Custom Shopify theme development ✔ Figma/XD/Photoshop → Shopify ✔ Shopify 2.0 & Liquid development ✔ Checkout UI Extensions & Checkout customization ✔ Shopify Functions ✔ Custom Shopify apps ✔ Shopify API & third-party integrations ✔ Headless Shopify with Next.js / Hydrogen ✔ Shopify CRO & UX improvements ✔ Theme migrations & rebuilds ✔ Speed optimization & Core Web Vitals ✔ Theme bug fixing & code cleanup ✔ Shopify Flow & eCommerce automation ✔ Metafields & Metaobjects ✔ Bundles, subscriptions & custom pricing logic If you already have a Shopify store, a Figma design, a technical problem, or simply a list of things you want improved, send it over. I'll tell you what I would change, how I'd approach it, and what the cleanest technical solution would be.