Available for projects

Software Developer — Full-Stack — Shopify · BigCommerce

With 3+ years in custom development, I architect high-performance Shopify and BigCommerce storefronts and full-stack JavaScript applications — engineered for scale and the CRO gains that drive conversions.

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Resume

Selected Work

Things I've built & shipped

Ten live storefronts across Shopify and BigCommerce. Tap any card to open the live site.

Screenshot of Tripventura

Tripventura

A highly customized travel booking platform. Features a complex booking engine built with OOP Vanilla JS to handle dynamic variants, backed by a Node.js automation engine and Shopify Metaobjects.

ShopifyVanilla JSOOPFull stack DevelopmentCustom integartionsNode.jsMetaobjects
Screenshot of Orsina

Orsina

Custom Shopify storefront implementation utilizing Metafields and customizable Liquid sections for dynamic product layouts, resulting in improved UX and loading performance.

ShopifyLiquidCROSolution ArchitectPerformance OptimizationMetafieldsUI/UX
Screenshot of Premier Housewares B2B

Premier Housewares B2B

Comprehensive theme customization for a major B2B storefront, featuring dynamic product layouts and deep performance enhancements using the Stencil framework.

BigCommerceStencilJavaScriptCustom IntegrationsSAPB2B
Screenshot of PremierHome

PremierHome

Shopify theme customization focusing on responsive UI improvements across the homepage and product detail pages using tailored Liquid sections.

ShopifyJavaScriptLiquidResponsive Design
Screenshot of Pro Guide Batteries

Pro Guide Batteries

E-commerce platform featuring custom PDP templates, GraphQL integration for related products, and a highly customized checkout flow.

JavaScriptBigCommerceGraphQLCustom CheckoutUI/UX
Screenshot of The Battery Dude

The Battery Dude

Flexible product page layouts built using custom fields, allowing for highly dynamic content and UI improvements tailored to specific battery product lines.

BigCommerceJavaScriptCustom Fields/pagesFrontend UI
Screenshot of Stealth Health Cookbook

Stealth Health Cookbook

Pixel-perfect Figma-to-Shopify build for a health & wellness digital cookbook brand, shipped with zero visual drift. Mobile-first storefront for high-protein e-book sales with automated digital delivery, SEO-optimized collection and product templates, and Core Web Vitals tuning for fast loads on every device.

ShopifyLiquidFigma to ShopifySEOCore Web Vitals
Screenshot of Rosa Scrubs

Rosa Scrubs

Headless BigCommerce storefront built with React and Tailwind CSS. Engineered a reusable component library with robust state management, dynamic product filtering, and a seamless cart experience for fast, app-like browsing.

HeadlessReactBigCommerceTailwind CSSState Management
Screenshot of Millcreek Sports

Millcreek Sports

Figma-accurate BigCommerce storefront delivered with pixel-perfect design conversion. Built an advanced sorting and filtering system across multiple sports categories for fast, intuitive product discovery.

BigCommerceStencilFigma to StorefrontFiltering & SortingUI/UX
Screenshot of Yoyoso

Yoyoso

Shopify storefront for a global lifestyle retailer, delivering faithful Figma design implementations, third-party app integrations, and targeted speed optimizations that sharpen Core Web Vitals and elevate the shopping experience.

ShopifyLiquidFigma to ShopifyApp IntegrationsPerformance

Experience

Where I've worked

Feb 2026 — Present

Shopify Full Stack Developer @ Tripventura

  • Manage and customize the Tripventura platform, implementing new features and solutions utilizing Shopify Metaobjects and Metafields.
  • Developed an automated Node.js-based template engine to streamline operations.
  • Maintain and expand a complex, highly customized booking engine built in pure Vanilla JS utilizing Object-Oriented Programming (OOP) to handle intricate product variants and options.
Full Stack developmentJavaScriptAI IntegrationShopifyLiquidNode.js
Aug 2025 — Jan 2026

Web Developer @ Premier Housewares

  • Managed and customized the Premier Housewares B2B storefront using the BigCommerce Stencil framework.
  • Developed and maintained the Orsina Shopify storefront utilizing Liquid, delivering custom theme development and UI performance enhancements tailored for an international audience.
Full Stack developmentJavaScriptShopifyLiquidBigCommerceStencil
Apr 2024 — Aug 2025

JavaScript Developer @ Karbon Ion

  • Developed custom BigCommerce storefront features using advanced JavaScript and React.js.
  • Implemented custom product templates, dynamic cart/checkout functionalities, and interactive UI components for B2B and B2C clients.
  • Integrated third-party APIs and GraphQL queries while actively participating in Agile sprints, stand-ups, and code reviews.
Frontend DevelopmentJavaScriptReact.jsNext.jsBigCommerceGraphQL
Jan 2024 — Mar 2024

Frontend Development Intern @ Karbon Ion

  • Assisted in building and maintaining user interfaces using React.js, BigCommerce Stencil, and Shopify.
  • Executed theme customizations, storefront layout updates, and SEO optimizations for responsive catalog pages.
  • Supported bug fixes, component refactoring, and internal technical documentation.
Next.jsReact.jsHTML/CSSSEOBigcommerce

Stack

Tools I work with

I focus on e-commerce ecosystems and modern web frameworks — from complex vanilla JavaScript booking engines built with OOP to deeply customized Shopify Liquid and BigCommerce Stencil themes. I bridge the gap between robust backend logic and engaging frontend experiences.

Platforms

Shopify (Liquid)BigCommerce (Stencil)Metaobjects/Metafields

Languages

JavaScript (ES6+)TypeScriptC++HTML5CSS3

Frontend

React.jsNext.jsTailwind CSS

Backend & Data

Node.jsGraphQLREST APIsMongoDBMySQLMicroservices

Workflow

Git/GitHubDockerCI/CDAgile Methodology

Contact

Let's build something.

Ready to collaborate on your next project? Whether you need a full-stack developer, a technical consultant, or a reliable partner — reach me on any channel below.

Phone+92-3241940159Emailsubhanjavaid5616@gmail.comLinkedInin/muhammadsubhan13GitHubSubhanjavaid13