storefront.build.ts 01exportfunctioncheckout() { 02 build.test() 03 ci.run('pass') 04 return shipped 05} BUILD PASSED · v2.14.0 SPRINT 01 RELEASE
eCommerce platform & storefront engineering · serving businesses worldwide since 2009

eCommerce platforms and storefronts built around your catalogue, checkout and customers.

Need an online store, custom checkout or headless commerce migration? Ask Milo - he’ll help you with your queries.

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eCommerce platforms and storefronts shipped into production since 2009
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Average lift in conversion rate after a storefront rebuild
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Contracted uptime SLA during peak sale events
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Countries our clients’ storefronts currently serve

Trusted by organisations where performance isn't optional

Templates vs. a real commerce platform

When dedicated eCommerce platform engineering becomes the better choice

Your checkout can’t support the payment methods or promotions your business needs

Off-the-shelf checkout flows don’t bend around region-specific payment methods, bundle pricing or complex promotions.

Peak sale traffic slows the site down right when it matters most

A storefront that isn’t built for spikes turns your biggest sale day into your worst outage.

Inventory and catalogue logic live outside the platform, in spreadsheets and workarounds

Multi-warehouse stock, variants and complex catalogue rules get bolted on instead of built in.

Every storefront customisation depends on a plugin you don’t control

Core buying flows are locked behind third-party plugins that limit what you can change and when.

CHECKOUT ENGINE CATALOGUE PAYMENTS PROMOTIONS INVENTORY FULFILMENT MERCHANDISED, NOT DEFAULTED Headless-ready · Conversion-tuned · Built for peak traffic
eCommerce platform services from strategy to support

One team for commerce strategy, storefront design, platform engineering and ongoing optimisation.

Our eCommerce services cover the full lifecycle: commerce strategy and platform selection, storefront UX and design, platform and checkout engineering, payment and inventory integration, and post-launch conversion optimisation. One Milleniance team remains accountable from the first review through production.

Discipline 01

Commerce strategy & platform selection

Auditing your current storefront, catalogue and checkout, and defining the right platform approach - headless or hosted - before implementation begins.
Storefront & conversion auditPlatform selection (headless / hosted)Catalogue & checkout requirements mappingMigration roadmap & risk assessment

Our review work can include cost-benefit analysis of platform options and a phased migration plan that protects live sales during the switch.

Discipline 02

Storefront UX & design

Storefront design grounded in real buying behaviour - product discovery, cart and checkout flows designed to convert, not just to look good.
Storefront UX & UI designProduct listing & PDP designCheckout & cart flow designMobile commerce optimisation

Design decisions are informed by conversion data and buying patterns, so layout and flow changes are justified by outcomes, not just aesthetics.

Discipline 03

Platform & checkout engineering

Building and customising the commerce platform itself - catalogue, cart, checkout, pricing and promotions logic that fits how your business actually sells.
Shopify Plus, Adobe Commerce, CommercetoolsCustom checkout, pricing & promotions logicMulti-currency & multi-region supportStorefront performance optimisation

Engineering covers the commerce logic that’s specific to your business - bundle pricing, subscriptions, loyalty or B2B ordering - built into the platform rather than worked around.

Discipline 04

Payments, inventory & post-launch optimisation

Payment gateway and inventory integration, plus ongoing monitoring, A/B testing and conversion optimisation once the storefront is live.
Payment gateway integration (Stripe, Razorpay, PayPal)Inventory & fulfilment system integrationA/B testing & conversion optimisationPeak-traffic monitoring & incident response

Post-launch work covers payment reconciliation, stock sync accuracy and iterative conversion testing, so the storefront keeps improving after go-live.

eCommerce platform technologies

We choose the commerce stack around your catalogue, traffic and existing systems.

Our stack includes modern commerce, payments and storefront technologies. Where your business already has a working stack, we work within it by default and recommend migration only when the benefits are clear.

Shopify PlusAdobe CommerceCommercetoolsBigCommerceNext.jsReactNode.jsGraphQLStripeRazorpayPayPalPostgreSQLRedisAlgoliaContentfulCloudflareDatadogTailwind CSSBootstrapGoogle Analytics 4Segment
eCommerce platform delivery process

A defined process from storefront audit to platform engineering, launch and ongoing optimisation.

01

Discovery, storefront & catalogue audit

We assess your existing storefront, catalogue, checkout and traffic patterns before defining the platform approach.

02

Senior commerce engineering team assignment

A named technical lead and commerce engineers stay accountable throughout, from platform selection through optimisation.

03

Platform engineering, migration & launch

Storefront design, platform engineering and QA work against one delivery roadmap, with staged migrations to protect live sales.

04

Post-launch monitoring, testing & optimisation

After launch, we support monitoring, peak-traffic readiness, A/B testing and new feature development based on real buying behaviour.

Selected work

A handful of the platforms and campaigns we've shipped recently.

View full portfolio →
Frequently asked

What our clients usually ask before the first call.

It depends on how much of the checkout, catalogue and storefront experience needs to be custom. Hosted platforms are faster to launch and lower maintenance; headless platforms give more control over performance and custom logic at the cost of more engineering. We can walk through the trade-off against your specific requirements.

Yes. Custom checkout, pricing and promotions logic is part of our platform engineering work, and we regularly build bundle pricing, subscriptions, loyalty programmes and B2B ordering flows on top of both headless and hosted platforms.

That’s something we design and test for specifically - peak-traffic readiness, caching, autoscaling and load testing are part of the engagement whenever seasonal or promotional spikes are a known risk.

Yes. We use staged migrations, traffic mirroring and rollback plans so that live traffic and revenue are protected during the switch.

Yes. Post-launch support can include monitoring, A/B testing, conversion optimisation, security updates and new feature development, with continuity from the team that built the platform.
From the practice

eCommerce insights: checkout, conversion, platforms and peak-traffic readiness.

View all insights →
Let's see if we're the right fit

Thirty minutes with a senior commerce engineer, before either of us commits to anything.

No sales deck, no discovery call with someone who hands you off afterwards. Scoped around your actual catalogue, checkout and markets. We respond within one business day.

Talk to a Senior Commerce Engineer →
Talk to a Senior Commerce Engineer →