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Web Development

E-commerce Development

Checkouts that complete and stock that is right.

The storefront is the visible part of a commerce system and rarely the difficult one. The difficulty is keeping inventory, pricing, orders and fulfilment in agreement across a website, one or more marketplaces, a point of sale and a warehouse, each of which believes it knows the current stock level.

Add a payment provider — a system that can succeed while reporting failure — and the correctness problems become very concrete.

We build storefronts and headless front ends, order management and fulfilment workflows, integrations to ERP, warehouse and accounting systems, and the internal tooling retail teams use for catalogue and promotions.

The problem

What this solves

Overselling comes from ambiguity about when stock is committed. If the website reserves at payment and the marketplace reserves at dispatch, the same unit will eventually be sold twice, and no amount of syncing frequency fixes a rule that was never agreed.

Checkout is where money meets unreliable networks. A payment webhook can arrive before the redirect, arrive twice, or not arrive at all. A checkout built for the happy sequence will eventually produce an order with no payment, or a payment with no order, and both are discovered by a customer.

  • Overselling across channels

    No agreed rule for when stock is committed, so two channels sell the same unit.

  • Orders lost at the payment boundary

    A webhook that arrives twice or out of order produces a payment with no order.

  • Abandoned carts that cannot recover

    A declined card ends in a dead end rather than a retryable cart.

  • Peak incidents caused by deployment

    A change shipped during the busiest week, with no rehearsed way back.

Our approach

How we go about it

We establish a single authority for stock and an explicit rule for when each channel reserves and releases against it. This is a business decision more than a technical one, and getting it agreed is most of the work.

Checkout is idempotent and event-driven. Webhooks are signature-verified, recorded before they are processed, and safe to receive twice or out of order. Orders reconcile against the provider rather than trusting a single callback, and a failed payment leaves a recoverable cart rather than a dead end.

Ahead of a known peak we load-test the real purchase path, fix what that surfaces, agree a change freeze and rehearse the rollback. Most peak incidents are caused by something deployed during the peak.

Capabilities

What is included

  • Catalogue and inventory architecture

  • Checkout and payment gateway integration

  • Order management and fulfilment workflows

  • Performance optimisation for product and listing pages

  • Structured data for product search visibility

  • Analytics for funnel and abandonment tracking

Outcomes

What changes for you

  • One authority for stock

    Every channel reserves against the same record under an explicit, agreed rule.

  • Checkout safe to retry

    Verified, idempotent webhooks and reconciliation against the provider rather than a single callback.

  • Recoverable failures

    A declined payment keeps the cart and lets the customer try again.

  • Peak prepared for deliberately

    Real purchase path load-tested, change freeze agreed, rollback rehearsed.

Frequently asked questions

Common questions about e-commerce development.

Do you work with Shopify, WooCommerce or Magento?
Yes, both as platforms and as one component within a larger system. A great deal of valuable commerce work sits outside the storefront — order management, fulfilment, integration and internal tooling — and can be built around a platform you are already committed to rather than requiring a replatform.
Headless or a traditional storefront?
Headless when you genuinely need a bespoke front end or several channels served from one commerce backend. It costs more to build and more to maintain, so it should answer a specific need. For a single web storefront, a well-built traditional theme is frequently faster to ship and faster to load.
How do you handle payment failures and disputes?
By recording intent before the attempt and reconciling against the provider afterwards, so the system can always answer what was charged and what was ordered. That record is also what makes a dispute answerable — most disputes are lost because the evidence was never assembled at the time.
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Where do your stock numbers disagree?

Usually between two channels with different rules about when a unit is committed. That is fixable.

Where we work

582 cities across 19 countries.

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