🛒 eCommerce Development
Freelance eCommerce
Development Services
I build fully-customised eCommerce stores on WooCommerce, Shopify and Magento 2 - from custom theme development and complex product logic to payment gateway integration, platform migrations and ongoing store maintenance.
10+
Years eCommerce
60+
Stores Delivered
5.0★
Upwork Rating
$30
Starting /hr
What I Do
What Does eCommerce Development Actually Involve?
eCommerce development is the full process of designing, building and maintaining online stores from product catalogues and inventory management to checkout flows, payment gateways and order fulfilment integration. It's technical, detail-intensive work where a small mistake in the checkout flow directly costs you revenue.
I build custom eCommerce solutions on WooCommerce, Shopify and Magento 2. That means bespoke themes built to your brand guidelines, custom product types for complex catalogue requirements, headless and multi-vendor architectures and deep third-party integrations with QuickBooks, ShipStation, CRM systems and marketing platforms.
Every store I deliver is optimised for conversion clean checkout flows, fast page loads, mobile-perfect product pages and trust signals in the right places. Because the code only matters if people actually buy.
🛒
Custom Store Development
Bespoke WooCommerce, Shopify and Magento 2 stores built from scratch no cookie-cutter templates
🔄
Platform Migrations
Migrate from Magento to WooCommerce, Shopify to WooCommerce or any combination products, orders and customers preserved
🔁
Third-Party Integrations
QuickBooks, ShipStation, Stripe, PayPal, Google Ads, Facebook Shop and CRM connections
📈
Conversion Optimisation
Checkout flow improvements, page speed, upsells, abandoned cart recovery and A/B-testable layouts
What You Get
What a Freelance eCommerce Developer Can Build for Your Store
The right eCommerce developer doesn't just build a store they build one that converts, scales and stays manageable as your catalogue grows.
✓
Custom Store from Scratch
Bespoke theme development tailored to your brand built for your product structure, customer journey and target market. Accessible, fast and fully yours, not a licensed template shared with thousands of other stores.
✓
Theme & Extension Development
Custom WooCommerce, Shopify and Magento 2 extensions for any functionality gap product configurators, subscription models, custom pricing logic, bulk order forms and complex variable product setups.
✓
Platform Migration
Full platform-to-platform migrations preserving all products, orders, customer accounts and historical data. SEO-safe with 301 redirects and zero indexing loss I've moved large Magento catalogues to WooCommerce without a single disruption.
✓
Admin & Management Panels
Custom vendor dashboards, inventory management interfaces, bulk order processing tools and reporting panels that let your operations team manage the store efficiently without developer support.
✓
Marketing & Analytics Integration
Google Shopping, Facebook Catalogue, GA4, Klaviyo, Mailchimp and CRM connections. Accurate conversion tracking, abandoned cart flows and email automation that drives repeat purchase revenue.
✓
Ongoing Maintenance & Support
Regular updates, security patches, performance monitoring, payment gateway changes and reactive support as your product range and traffic grow over time.
The Platforms
Why Work with an Experienced eCommerce Developer
Building an online store is straightforward. Building one that performs, converts and stays maintainable as you scale is not.
🛒
WooCommerce Expertise
WooCommerce powers over 30% of all online stores. I've built custom themes, payment gateways, subscription plugins and complex variable product systems on WooCommerce for 10+ years.
🚀
Magento 2 Depth
Magento 2 handles serious eCommerce complexity multi-store, multi-currency, complex catalogue rules. I've built custom modules, payment integrations and performance optimisations for large Magento stores.
🎨
Conversion-Focused Design
I don't just implement designs I challenge decisions that will hurt conversions. Cart abandonment, friction in checkout, poor mobile product pages these are solvable problems, and I spot them early.
🔒
PCI Compliance & Security
I implement payment gateways via Stripe and PayPal's hosted fields to avoid PCI scope. SSL configuration, input sanitisation and security headers are part of every store I build.
⚡
Performance at Scale
Database query optimisation, Redis caching, CDN configuration and image optimisation keep your store fast even with large catalogues. Slow stores lose sales I've fixed the underlying causes, not just the symptoms.
📈
Data-Driven Improvements
Proper GA4 eCommerce tracking, Google Ads conversion events and Meta Pixel configuration so you have accurate data to make decisions. I set up tracking correctly from day one not as an afterthought.
Why Harwinder
Why Hire Me as Your Freelance eCommerce Developer?
Deep platform expertise combined with a conversion-focused mindset I build stores that make money, not just stores that exist.
📅
10+ Years eCommerce Experience
I've built online stores across WooCommerce, Magento 2 and Shopify for clients in retail, fashion, electronics, food and B2B. I know which platform to recommend for which requirement and why the wrong choice costs more than the right one.
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Multi-Platform Expertise
I work confidently across WooCommerce, Magento 2 and headless eCommerce architectures. Each platform has a different ceiling I help you choose correctly and build to its strengths, not around its limitations.
🎨
Design & Development Combined
I implement Figma and PSD designs precisely, and I flag design decisions that will hurt conversion before they're built. You get both technical skill and commercial perspective in one person.
🔁
Integration Depth
ERP connections, accounting integrations, shipping providers, CRM sync and marketing platforms I've integrated eCommerce stores with dozens of third-party systems and I know where the complexity hides.
🔍
Rigorous Quality Assurance
I conduct thorough functional, compatibility, security and load testing before any store goes live. Checkout flows are tested on real devices not just in a desktop browser. No store ships without passing a documented QA checklist.
🚀
Performance-Focused
Fast stores convert better. I optimise for Core Web Vitals from day one proper lazy loading, critical CSS, image optimisation and query caching. Every store I deliver loads quickly on mobile.
💰
Competitive Rates
eCommerce development starts at $30/hr. Fixed-price quotes for clearly scoped projects. Senior eCommerce output without agency overhead you keep the margin.
💬
Reliable, Proactive Communication
Same-day replies, regular staging updates and honest timelines. I flag issues as soon as I see them not at the end of the sprint when it's too late to change course without cost.
How It Works
My Process for Building Your Online Store
A structured, transparent process so you always know exactly where the project stands and what comes next.
01
Requirements Discovery
A free call to understand your product catalogue, customer journey, business model (B2C, B2B, marketplace, subscription), existing systems and what you need the store to do that a basic theme won't handle.
02
Platform & Architecture
Platform selection (WooCommerce vs Magento vs headless), database schema for custom product types, integration architecture and technical specification. Agreed in writing before development begins.
03
Proposal & Scope
A detailed written proposal covering milestones, deliverables, integrations, cost and timeline. Every edge case documented so the quote doesn't expand when we discover complexity mid-build.
04
Design Implementation
Pixel-perfect theme development from your Figma files or brand guidelines. Product pages, category pages, cart and checkout all built and approved on staging before backend work begins.
05
Development & Integration
Payment gateways, shipping providers, ERP/CRM connections, custom product logic and marketing integrations all built and tested in sequence. Each integration verified before the next begins.
06
Testing & QA
Full checkout flow testing across browsers and devices, security scanning, performance benchmarking and payment testing with real test transactions. No store goes live without a documented sign-off checklist.
07
Launch & Training
Production deployment, DNS configuration and a walkthrough training session for your team covering product management, order processing and the day-to-day operations they'll need to run the store independently.
08
Handover
Full codebase and credentials handover with written documentation. The first 30 days of questions and minor adjustments are covered at no extra charge.
09
Ongoing Improvements
Retainer-based maintenance covering platform updates, new feature development, performance monitoring and conversion optimisation as your store grows and your requirements evolve.
Available for new projects
Ready to Build Your Online Store?
Tell me what you need a new store build, a platform migration, a WooCommerce customisation or ongoing maintenance. I'll come back with a clear scope and a fixed price within 24 hours.
No commitment needed · Same-day reply · Fixed price guaranteed