Most developers build stores.
I build unfair advantages. ✅
Top Rated Plus Developer | Top 3% on Upwork ✅
I specialize in high-performance eCommerce ecosystems — Shopify, BigCommerce, WordPress, React, Node — engineered for scale, data clarity, and revenue growth.
I don’t touch projects unless I can improve one of these:
• Conversion rate
• Average order value
• Retention
• Tracking accuracy
• Technical performance
My expertise:
• Advanced custom app & API development
• Server-side tracking (Meta, Google, GA4, GTM)
• Conversion architecture & UX psychology
• ADA compliance at code level
• Klaviyo revenue automation
• Technical SEO (on-page + structural)
• Custom dashboards & backend systems
If your store is doing well — I optimize it.
If it’s stuck — I unlock it.
I don’t compete on price.
I compete on results. ✅
BigCommerce
Ecommerce Website
Shopify
Shopify Templates
Shopify Plus
Liquid
Shopify Theme
Dropshipping
WordPress
HTML5
CSS 3
JavaScript
Node.js
React
PHP
Muhammad Junaid A.
Faisalabad, Pakistan
$40/hr
4.9
275 jobs
BigCommerce developer and Shopify Developer with 18 years of experience, 254 Upwork jobs 6,300+ hours and a 100% Job Success Score on Upwork.
I help eCommerce businesses to solve problems that stop their stores from growing. Which mean fixing a slow or outdated theme building custom functionality. improving conversion rates correcting inaccurate tracking or automating time-consuming processes.
My work goes beyond development. I try to understand your business your customers and why visitors may be leaving without making a purchase.
I can help you with:
• BigCommerce development and Stencil theme customization
• BigCommerce Catalyst and legacy theme upgrades
• Shopify and Shopify Plus development
• Custom Shopify apps and integrations
• Store migrations and platform upgrades
• Custom APIs, checkout, shipping, and payment integrations
• Liquid, Stencil, React, Node.js, and PHP development
• Conversion rate optimization and UX improvements
• Meta Conversion API and server-side tracking
• Google Ads, GA4, and Google Tag Manager
• Klaviyo email and revenue automation
• Technical SEO, performance, and accessibility
• Custom dashboards and backend systems
• Store audits, troubleshooting, and ongoing support
My Upwork profile feedback includes long-term Shopify Plus projects BigCommerce theme development API integrations migrations, custom checkout functionality and urgent conversion problems.
Clients like my communication reliability attention to detail and ability to understand the business behind the technical work. Many continue working with me on repeat and long-term projects.
If your store is getting traffic but not enough sales I’ll help you find out why.
If store is already performing good, I’ll help you make it faster, smarter easier to manage and more profitable.
BigCommerce Developer | BigCommerce Stencil Developer | BigCommerce Web Design | BigCommerce Web developer | BigCommerce Apps Development | Professional BigCommerce Developer | Shopify Developer | Shopify Web developer | Shopify store development | Shopify web designer | Shopify theme designer | Shopify Migraiton
#bigcommerce#bigcommerceDeveloper##BigCommerceStencilDeveloperBigCommerceWebDesigner#shopifyDeveloper#ShopifyWebDeveloper#ShopifyStoreDevelopment#ShopifyWebDesigner#ShopifyThemeDesigner#ShopifyMigration
BigCommerce
Ecommerce Website Development
Shopify
Shopify Plus
Shopify Apps
Stencil
Shopify Website Redesign
API Integration
Conversion Rate Optimization
Website Migration
Node.js
Google Tag Manager
Klaviyo
Google Analytics 4
Shopify Theme
Liquid
zeeshan S.
Bahawalpur, Pakistan
$32/hr
4.9
256 jobs
✅ Top Rated
✅ Full Stack Web Developer
✅ Available in the US time zone for work
I am an experienced, results-driven Professional with a Master's Degree in Computer Science.
I possess 12 years of experience in Bigcommerce.
Here is the detailed analysis of my Bigcommerce expertise.
✔ Bigcommerce Stencil theme customization and development
✔GraphQl API
✔ Bigcommerce store setup
✔ Bigcommerce store design & theme customization
✔ PSD to Bigcommerce
✔ Template customization & layout changes
✔ Responsive coding
✔ Writing custom JS Scripts
✔ Payment and shipping gateway integration
✔ Facebook, Twitter, Instagram live feed integration
✔ Third party application integrations i.e. Live chat, Mailchimp, Constant contact
✔ Blog integration
✔ Product SEO
✔ Cross browser compatible fixes
✔ Maintenance
My skills include work with: Javascript,HTML5,CSS3,PHP.
I believe in a strong customer-client relationship. Let's get in touch and start working together!
BigCommerce
Ecommerce Website
HTML5
CSS 3
JavaScript
Adobe Photoshop
WordPress
HTML
Stencil
GraphQL
API
Figma
Bug Fix
Shopify
Adobe Illustrator
Muhammad Aamir A.
Bahawalpur, Pakistan
$30/hr
4.9
254 jobs
BigCommerce APIs | Custom Integrations | Zapier & Omnisend Automation | Searchspring | ChannelAdvisor | Conversion Tracking (CAPI/GA4) | Full-Stack Developer
I am Muhammad Aamir Abbas, a Top Rated Plus Freelancer with 13+ years of experience building, customizing, integrating, and scaling eCommerce stores.
I specialize in BigCommerce Development, Shopify Development, Custom API Integrations, eCommerce Automation, GA4, Google Tag Manager (GTM), Meta/Facebook Pixel, Pinterest Pixel, Reddit Pixel, TikTok Pixel, and advanced conversion tracking solutions.
Expertise
✅ BigCommerce Store Setup & Custom Development
✅ BigCommerce Stencil Theme Development
✅ Headless Commerce & Multi-Storefront
✅ Shopify Store Development & Customization
✅ Custom API Development & Integrations
✅ ChannelAdvisor Integration
✅ Searchspring Integration
✅ ERP & CRM Integrations
✅ React.js, JavaScript, PHP, Python & MySQL
✅ REST API & GraphQL Development
Analytics & Tracking
✅ Google Analytics 4 (GA4)
✅ Google Tag Manager (GTM)
✅ Meta/Facebook Pixel
✅ Conversion API (CAPI)
✅ Pinterest Pixel
✅ Reddit Pixel
✅ TikTok Pixel
✅ Enhanced Ecommerce Tracking
✅ Server-Side Tracking
Why Work With Me?
✔ BigCommerce Certified Partner
✔ Top Rated Plus Freelancer
✔ 100% Job Success Score
✔ 200+ Successful Projects
✔ End-to-End eCommerce Solutions
From complete store builds and custom development to API integrations, automation, analytics, and conversion tracking, I help businesses create scalable eCommerce solutions that drive growth.
Let's discuss your project and build something exceptional together.
BigCommerce
Web Development
Shopify
Front-End Development
Stencil
Theme Customization
Ecommerce Store Setup
GraphQL
API
API Integration
JavaScript
React
WordPress
WooCommerce
Generative AI
Hamza M.
Lahore, Pakistan
$25/hr
5.0
11 jobs
Hi,
I help eCommerce brands increase conversions, improve performance, and scale revenue with fast, high-converting websites.
If your store looks good but isn’t converting, loading slowly, or feels clunky, I fix that.
Over the past few years, I’ve worked with DTC and B2B brands to build and optimize stores that are not just visually clean but strategically designed to drive sales. From landing pages to full-scale builds, my focus is always on performance, user experience, and measurable growth.
What I specialize in:
Shopify & Shopify Plus
Custom themes and section development
Full website development
App integrations and advanced custom features
Conversion rate optimization (CRO)
Speed optimization and performance fixes
BigCommerce
Storefront and theme customization
Full website development
Checkout improvements and API-based solutions
Scalable architecture for growing brands
WordPress & WooCommerce
Custom builds and full website development
Plugin customization and bug fixing
Performance, security, and SEO setup
Webflow & Squarespace
Clean, modern, responsive builds
Pixel-perfect development from Figma
Development Skills
HTML, CSS, Tailwind, JavaScript (pixel-perfect frontend)
PHP, NodeJs for custom backend functionality
I focus on clean code, fast communication, and delivering work that directly impacts revenue.
If you need someone who understands both development and what actually drives conversions, let’s connect.
BigCommerce
Ecommerce Website Development
Shopify
Shopify Development
Shopify Plus
Shopify Theme
WooCommerce
WordPress
Conversion Rate Optimization
Liquid
PHP
JavaScript
API Integration
Web Development
Web Design
Elementor
Shopify Templates
WordPress Website Design
Shopify SEO
HTML
Javed I.
Faisalabad, Pakistan
$35/hr
4.9
631 jobs
With over 15 years of experience in e-commerce, I deliver top-notch e-commerce store development. My main strengths includes BigCommerce stencil, Catalyst and Make swift with native React app, Shopify, WordPress and Volusion.
I specialize in custom theme development, transforming Figma designs into fully functional, pixel-perfect BigCommerce storefronts. My expertise includes Liquid/Stencil template creation, advanced styling, and performance-optimized frontend development. I have strong experience in API integration, enabling dynamic features, secure data handling, customize checkout and seamless third-party service connections.
E-commerce Expertise:
- BigCommerce Specialist: Bigcommerce partner, Skilled in-app and theme development, including widgets, add-ons, and headless commerce solutions using stencil, React.js, Vercel, and Catalyst, as well as Contentful and Makeswift for Headless Bigcommerce.
- Shopify Expert & Certified Theme Developer: Specialized in custom Shopify themes and app development.
✅ Bigcommerce Approved Partner: partners.bigcommerce.com/directory/partner/1860091/ags-developers
✅ Top Rated Plus since years!
✅ Over 17000 hours working on Upwork
✅ 100% Client Satisfaction!
✅ Available in US time zone for work!
✅ Bigcommerce, Shopify, WooCommerce and Wordpress
✅ Bigcommerce Multistorefront (MSF)
✅ Custom Theme Development (Shopify 2.0, BigCommerce, WooCommerce)
✅ BigCommerce to Shopify (Vice Versa) Migrations — with 100% SEO and data retention
✅ Speed Optimization for faster load times and better Core Web Vitals
✅ Advanced GA4, GTM, Google Ads & Meta Event Tracking
✅ Custom Shopify Apps, Widgets, and Checkout Integrations
✅ BigCommerce Custom Widgets, API & GraphQL Solutions
✅ Product listings with data collection on Bigcommerce and shopify
✅ Backup and restore
✅ Ecommerce website design and development
✅ Data entry & processing – Data migration
✅ Website Mock up (Using: XD, Figma, PSD, Ai)
✅ BigCommerce Structured data for google feed
✅ BigCommerce Payment methods and Shipping set up
✅ BigCommerce stencil theme creation from design Mockup (Using: XD, Figma, PSD, Ai)
✅ BigCommerce SEO - (On Page Seo , Products Schema Optimization , FAQs)
✅ App recommendations and setup
✅ BigCommerce Dynamic Theme Options
✅ BigCommerce Page builder
✅ Google analytics , Live Chat , Apps Integration
✅ Writing custom JS Scripts
✓ Shopify Liquid coding
✓ Shopify 2.0 theme creation
✓ Shopify theme setup & customization
✓ Data format in CSV
✓ PSD to WordPress web design
✓ WordPress website setup & customization
✓ Woo commerce development
✓ HTML5 and CSS3 design
We have a good portfolio of eCommerce websites and custom-built features that we can share with you depending upon the platform services you are looking for.
It would be my pleasure to work for you and make you another success story.
Thank you...
BigCommerce
Ecommerce Website Development
Shopify
WooCommerce
Theme Development
Theme Customization
Product Listings
Platform Migration
Stencil
Data Migration
CMS Product Upload
Google Tag Manager
Google Analytics
Website
Payment Gateway
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