Next-Gen eCommerce Solutions Built to Scale Digital Sales

Sthenos designs and develops eCommerce platforms for B2B, B2C and hybrid commerce models, builds marketplaces, and migrates stores between platforms while preserving data integrity, user experience and search visibility, the four services set out above.

On this page

• What ecommerce solutions cover
• B2B ecommerce solutions: what B2B adds to a store
• Platform, custom or headless: which route suits you
• How an ecommerce build runs
• Ecommerce platform migration without losing search traffic
• What moves the cost of an ecommerce build
• What you receive from an ecommerce engagement
• What to ask ecommerce solution providers
• Ecommerce development: common questions
• Related pages, by what you are deciding
• Talk to our engineers

What ecommerce solutions cover

An ecommerce solution here means more than a storefront. As the answer on this page puts it, on a mature platform the storefront is largely configuration, and the engineering is in the parts that touch your business: catalogue and pricing rules, tax and shipping logic, payment and fraud handling, and syncing orders and stock with whatever ERP or warehouse system you already run.

The four ecommerce business solutions above cover that ground: a strategy across platform selection, architecture planning and digital commerce roadmaps; custom ecommerce applications across web and mobile; B2B and B2C marketplaces that support multiple vendors and complex transactions; and platform migration. Ecommerce software solution development starts from your constraints, not the platform.

B2B ecommerce solutions: what B2B adds to a store

The answer on this page calls B2B pricing and accounts the question that decides the platform. Customer-specific price lists, negotiated contract pricing, quote approval, credit terms and purchase orders are ordinary in B2B and awkward in tools built for consumer retail, so a B2B ecommerce solution starts by establishing how the platform handles them natively, before committing to it.

Marketplace development on this page covers B2B and B2C marketplaces built to support multiple vendors, complex transactions and customer-centric experiences, with native and cross-platform development and high-load handling.

Platform, custom or headless: which route suits you

Start from your constraints, not the platform. The answer on this page puts the trade simply: Shopify wins on speed and operational simplicity, Adobe Commerce and similar platforms handle complex B2B pricing or unusual checkout requirements at the cost of significantly more engineering and hosting, and fully custom is justified when the commerce model itself is unusual. Our ecommerce development services page sets the routes side by side.

The fourth route, a platform plus apps, fills the gaps with third-party apps. App subscriptions compound, and every app is a dependency that can break or be abandoned.

How an ecommerce build runs

The steps draw on the four services on this page and on the integration work our ecommerce development page describes, in the order a commerce programme uses them.

1. Strategy and consultationPlatform selection, architecture planning and a digital commerce roadmap, aligned with business goals, operating models and customer journeys.
2. BuildCustom ecommerce development across web and mobile, or a B2B or B2C marketplace, with scalable architecture and cross-browser and device compatibility.
3. IntegrateOrders and stock synced with the ERP or warehouse system you already run, with order data reconciling across tax and accounting.
4. Migrate and launchPlatform migration with minimal disruption and an SEO-safe approach, preserving data integrity, user experience and search visibility.

Underneath, the build runs on our usual cadence: we work in two week sprints, so working software arrives every two weeks.

Ecommerce platform migration without losing search traffic

What usually goes wrong in a replatform is data, and it is almost always underestimated: catalogue migration exposes years of inconsistent product data, and URL changes lose rankings when redirects are treated as a launch-day task rather than a design input. Our ecommerce development page sets out four rules that prevent it.

What moves the cost of an ecommerce build

This page publishes no price band for an ecommerce build, and none is invented here. The drivers below are the ones our ecommerce development services page names, and where the scope is clear we quote a fixed price for a defined outcome, with a costed roadmap before any build starts.

• Catalogue complexity. Variants, configurable products, bundles and per-customer pricing each multiply the data model and the testing surface.
• Integrations. ERP, warehouse and fulfilment, tax, and accounting; order data has to reconcile across all of them.
• B2B requirements. Quotes, approval chains, credit terms and contract pricing turn a store into an application.
• Migration. Products, customers, order history and every URL have to move, and the redirect map is not optional.
• Performance. Page speed belongs in scope from the start, not in an optimisation phase afterwards.
• Catalogue size and order volume. The number of SKUs decides how much of the work is data rather than code; orders per month decide how much of the fulfilment path can stay manual.

The rate depends on the seniority and mix of the team, which is the stated reason the band has a range at all.

What you receive from an ecommerce engagement

• A platform recommendation made from your constraints; we are platform-independent and resell no licences.
• A written scope and a costed roadmap before any build starts.
• Working software every two weeks.
• On a migration, a map from every old URL to its new one, made before the build rather than after.
• The code repository, the platform account, the domain and the payment gateway relationship in your name from day one, as the answer on this page says they should be.
• Monitoring, maintenance and a roadmap after launch.

What to ask ecommerce solution providers

These come from our ecommerce development services page, and they apply to any firm on your shortlist.

1. Which platform do you recommend, and when would you recommend against it? An ecommerce solution company that recommends the same platform every time is telling you about its bench, not your business.
2. Who owns the apps and integrations? Accounts and licences should be yours.
3. Show me a migration you did, with the redirect map. This single artefact separates the careful from the confident.
4. What happens on the busiest day of the year? Load testing before peak, not after it.
5. Who is on call during a checkout outage? Agree it before you need it.
6. Which PCI self-assessment questionnaire will this design put us in? If the answer does not name SAQ A, SAQ A-EP or SAQ D, the person answering has not thought about where card data goes.

Related pages, by what you are deciding

Planning a new store or a replatform? Tell us the platform you are on, what the store has to support and the date you are working to, and we will tell you which of the four routes fits. Talk to our engineers.