Hafiz Fahad M.

Full Stack Shopify Plus Developer and Top Rated Plus on Upwork. I build the parts of a Shopify store that a theme or an app can't do: product configurators and price calculators, custom Shopify apps, checkout extensions, subscriptions, bundles and membership logic. I also fix the bugs other developers leave behind, and I explain the root cause in plain English. I work on both sides of a project: the Liquid theme your customers see, and the custom app, API and checkout logic underneath it. You don't need to hire two developers. Recent work (client names kept private): - Made-to-measure worktop calculator for a Danish retailer: live price and drawing, prices the client edits in Shopify, and a backend that re-checks every price and creates a draft order. Tested on 504 prices with 0 mismatches. - Watch compatibility search over about 14,400 watches, built on metaobjects. Popular watches now load in about 1 second instead of about 50. - Paid membership in the cart for a photobook brand in Mexico, with a lifetime savings counter built on Shopify Flow. 17 of 17 live tests passed. - SEO and AI visibility for a US supplement brand: SEO score from 47.9 to 79.9 across 31 pages, with valid product data on all 58 products. - 18 months as the developer for a Dutch butcher's store: a build-a-box page, a traceability timeline and a shipping rule Shopify can't do on its own. - 36 question Ayurvedic quiz with product recommendations and Klaviyo, editable in the theme, with no app. - A cart that kept reloading after a theme switch: traced to a delivery app's script and fixed with one stable placeholder. What I can help you with: - Figma, XD or reference store to Shopify, with fully editable sections - Custom Shopify apps, theme app extensions and checkout UI extensions (Node.js, React) - Shopify Plus: checkout extensibility, Shopify Functions and Shopify Flow - Product configurators, price calculators and live price updates - Subscriptions, bundles, build a box and membership logic - Product page, cart page and cart drawer customization, including upsells - Metafields and metaobjects your team can edit without a developer - Conversion rate optimization (CRO): audits and fixes on product, cart and collection pages - Shopify SEO and AI visibility: headings, structured data and product SEO - Bug fixes: theme, apps, cart, checkout and third party scripts - Speed clean up: unused apps, scripts and injected code - Ongoing monthly support when your store needs a developer on call Tech I use every day: Liquid, JavaScript, TypeScript, Node.js, React, Shopify CLI, GitHub, Admin and Storefront GraphQL APIs, Section Rendering API, Ajax Cart API, Klaviyo and Playwright. How I work: 1. A written plan first, with a fixed price for each phase. 2. All work happens on a copy of your theme. You get a preview link, and nothing goes live until you approve it. 3. Code lives in GitHub, so every change is tracked. 4. Every change is checked on desktop and mobile, with before and after screenshots. Simple and honest. If a task will take longer than expected, I tell you. If your idea will not work the way you pictured it, I tell you that too and suggest a better path. No disappearing, no over promising, no broken code left behind. I have been writing software since 2015, including almost five years on a Ruby on Rails accounting platform, and I worked on Shopify Plus stores at FullStack Labs. Send me the details of your project and I will reply with a clear plan, timeline and a fair price. Hafiz