Services - E-commerce development
We build online stores that look exceptional and sell effectively. Whether you are launching your first e-commerce operation or scaling an existing one to handle thousands of orders a day, we deliver platforms that drive revenue and delight your customers.
From Shopify and Magento to fully custom headless solutions, we are platform-agnostic and always recommend the technology that best fits your business goals, catalogue size, and growth ambitions.

Platform Selection & Strategy
Choosing the right e-commerce platform is the most important decision you will make. We help you evaluate Shopify, Magento, WooCommerce, and headless solutions based on your product catalogue, sales volume, budget, and growth plans rather than pushing a single platform.
For businesses outgrowing their current platform, we provide migration strategies that preserve your SEO rankings, customer data, and order history. We plan every detail so the transition is seamless for your customers and your team.
The result is a clear e-commerce roadmap with platform recommendations, integration requirements, and a phased delivery plan that gets you selling as quickly as possible.
Platforms we work with
- Shopify
- Shopify Plus
- Magento
- WooCommerce
- Headless commerce
- Custom builds

Store Design & Development
We build e-commerce stores that convert visitors into customers. Every design decision is guided by conversion rate optimisation principles: fast page loads, clear product presentation, streamlined checkout flows, and trust signals that reduce cart abandonment.
For Shopify stores, we build custom themes and apps that go far beyond template limitations. For Magento, we develop extensions and integrations that handle complex catalogues, multi-store setups, and B2B pricing rules.
We also build headless commerce solutions using Shopify Storefront API or Magento GraphQL with React frontends, giving you complete creative control over the shopping experience while keeping a proven commerce engine running behind the scenes.
What we build
- Custom themes
- Shopify apps
- Headless storefronts
- Product configurators
- Checkout optimisation
- Multi-currency support

Integrations & Growth
A successful e-commerce operation connects your store to your entire business. We integrate your platform with payment providers, inventory systems, shipping carriers, and accounting software so orders flow through your business without manual intervention.
We set up analytics and tracking to give you full visibility into your sales funnel: where customers come from, where they drop off, and what drives them to purchase. This data powers ongoing optimisation of your store performance.
Post-launch, we help you grow with SEO optimisation, performance tuning, and new feature development as your catalogue and customer base expand.
Key integrations
- Payment & checkout. Stripe, PayPal, Klarna, Apple Pay, and Google Pay configured for maximum conversion with fraud protection built in.
- Fulfilment & logistics. Integration with your warehouse, 3PL, or dropshipping partners for automated order routing and real-time stock updates.
- Marketing & analytics. Google Analytics 4, Meta Pixel, Klaviyo, and Mailchimp connected for full-funnel attribution and automated marketing workflows.
Why Maven - E-commerce that drives revenue
We build online stores that look great and sell well. Every decision is driven by data and conversion optimisation, not just aesthetics.
- Conversion focused. Every design and development decision is guided by what makes customers buy. We obsess over page speed, checkout friction, and trust signals.
- Platform agnostic. We recommend the platform that fits your business, not the one that pays us the highest commission. Honest advice saves you money in the long run.
- SEO built in. Technical SEO is baked into every store we build: structured data, fast page loads, proper URL structures, and optimised product schemas.
- Mobile-first design. Over 70% of e-commerce traffic comes from mobile. We design for phones first and scale up, ensuring a smooth shopping experience on every device.
- Scalable infrastructure. Whether you sell 10 or 10,000 orders a day, your store will handle the load. We build for peak traffic and seasonal spikes from day one.
- Ongoing optimisation. We do not just build and leave. We provide ongoing A/B testing, performance tuning, and feature development to keep your conversion rates climbing.
FAQ - E-commerce development FAQs
What UK retailers ask us before a platform decision or migration.
- Shopify, Magento, or headless?
- For most UK retailers under £5m revenue, Shopify is the right answer — it has the lowest total cost of ownership and the best app ecosystem. Magento makes sense for complex B2B catalogues or multi-store operations. Headless (Shopify Storefront API or commercetools + a React frontend) is for brands that need a fully custom experience and have the engineering capacity to maintain it.
- Can you migrate us from Magento 1 to Shopify Plus?
- Yes. We have run several Magento 1 → Shopify Plus migrations, preserving SEO (redirect maps, structured data continuity), customer data, order history, and integrations with ERP/WMS/3PL systems. A typical migration runs 8-16 weeks depending on catalogue complexity.
- How do you handle SEO during a platform migration?
- Old-URL-to-new-URL redirect mapping, schema.org preservation, sitemap re-submission, Search Console transfer, and a 90-day post-launch monitoring window. We have moved 10,000+ SKU catalogues without losing organic traffic — but it requires a disciplined process, not just turning a switch.
- Can you build custom Shopify apps?
- Yes. We build private and custom Shopify apps using Remix and the Shopify App SDK — useful for B2B pricing rules, custom configurators, ERP integrations, and bespoke checkout extensions on Shopify Plus.
- What about conversion rate optimisation?
- Every store we build ships with GA4, Meta CAPI, and conversion event instrumentation wired up correctly from day one. We can also run structured A/B tests on checkout, PDP, and PLP layouts — typical wins are 5-15% conversion uplift on the first 2-3 tests.
- How fast can my store be?
- On Shopify, target an LCP under 2.0s on a slow 4G connection. On headless, sub-1.5s is realistic. Most stores we audit are at 4-6s and need work on image delivery, theme JavaScript, and third-party tag bloat — all of which we fix as part of the build.