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Clownmind
Commerce engineering

BigCommerce builds for catalogues that refuse to stay small

Stencil themes, Catalyst front ends, B2B price lists and the integration plumbing that keeps a large SKU count honest.

  • Stencil
  • Catalyst
  • GraphQL Storefront API
  • Node.js
Start a conversationWhat we do

BigCommerce Development

BigCommerce is a strong fit when the catalogue is deep and the pricing rules are strange. We lean on that: variant-heavy products, customer-group pricing and quote flows are where our BigCommerce work usually starts.

We ship on Stencil when the merchant team wants to stay inside the platform, and on a decoupled front end when the roadmap needs more control than a theme can give.

120k

Largest catalogue we run in production

6

Storefronts served from one BigCommerce tenant

9wk

Median replatform timeline

Discuss this workHow we run projects

Ask about this specifically

Tell us what exists today. You will get a straight answer about approach and rough cost — from an engineer, not an account manager.

No sales sequence. One reply from a senior engineer, usually within a working day.

Capabilities

What is actually included

Scope is agreed line by line in the framing week. This is the menu it gets drawn from.

  • Stencil theme engineering
  • Catalyst and headless front ends
  • B2B Edition, price lists and quoting
  • Multi-storefront and multi-currency setups
  • Custom app and Script API development
  • Platform migration onto BigCommerce
  • Checkout SDK customisation
  • Ongoing merchandising support

Typical stack

StencilCatalystGraphQL Storefront APINode.jsReactKlaviyoAvalara
How we work

Four steps, and you can stop after any of them

Every stage produces something you own outright. Nothing is held hostage to the next invoice.

  1. 01

    Framing week

    A paid week where we map the constraints, the existing systems and what success has to look like in numbers. You keep the output whether or not we continue.

  2. 02

    Architecture & plan

    A written technical plan with the trade-offs made explicit, a milestone schedule, and a fixed budget band for the first release.

  3. 03

    Build in the open

    Two-week increments, a preview URL from day three, and a Slack channel where your team can see the work rather than wait for a demo.

  4. 04

    Launch & operate

    Load testing, runbooks and monitoring before go-live, then a support window while your team takes the wheel — or a retainer if you would rather we kept it.

Commerce engineering

Usually paired with

Projects rarely stay inside one service line. These are the ones that most often come along with it.

Ecommerce Development

We design, build and operate ecommerce experiences that hold up under real traffic — fast catalogues, honest checkouts and a merchandising surface your team can actually use.

Read more

Shopify & Shopify Plus Development

Custom themes, Hydrogen storefronts, Shopify Functions and the app work required when the business outgrows the defaults.

Read more

Magento & Adobe Commerce Development

Module engineering, B2B account hierarchies, performance triage and upgrade paths that do not stall for two quarters.

Read more

WooCommerce Development

Custom Woo builds for content-led brands, with plugin diets, block themes and a checkout that does not depend on nine extensions.

Read more
Testimonials

What clients say when we are not in the room

These are lightly edited excerpts from reference calls, published with permission.

“They rebuilt our checkout in nine weeks and then spent another two arguing us out of three features we did not need. Conversion went up either way. That mix of speed and pushback is rare.”
PRPriya RamanathanVP Digital · Halberd Outdoor
“The framing week was worth the whole fee on its own. We came in wanting a replatform and left with a plan to fix search instead, which turned out to be the actual problem.”
TFTomás FerreiraHead of Product · Meridiana Living
“We had two agencies before this. Clownmind is the first one whose handover documentation our own engineers could read on a Friday and deploy from on a Monday.”
DWDana WhitcombeCTO · Northlake Health
“Their SEO people write code. I did not realise how much time we had wasted on audits nobody could implement until findings started shipping in the same sprint.”
KAKenji AoyamaGrowth Director · Studio Ferrous
“Peak week went by without a single incident. They rehearsed the load twice in September and found a caching bug that would have cost us the whole of Black Friday.”
ANAyesha NkemdirimDirector of Ecommerce · Verdant Supply Co.
“They told us not to build the AI feature we asked for and explained why in writing. Six months later that was clearly the right call. I trust the next recommendation more because of it.”
MBMarcus BellFounder · Rowan & Fen
FAQ

BigCommerce Development: the questions we get asked

If yours is not covered, ask it directly — the reply comes from whoever would lead the work.

With a paid framing week. Two of our people read the existing code, talk to whoever operates the system daily, and produce a written technical plan covering approach, trade-offs, milestones and a budget band. You keep that plan regardless of what happens next.

The people you meet in the framing week. Clownmind runs senior-only delivery teams of three to five, and we do not hand projects to a second bench after the pitch. Stencil, Catalyst, GraphQL Storefront API and the rest of the stack listed above are things our team uses daily, not things we subcontract.

Most first releases land between eight and sixteen weeks depending on integration surface. We ship in two-week increments with a preview environment from day three, so there is something real to look at long before launch.

Load testing, runbooks and monitoring go in before go-live. After that you either take it in-house with a documented handover — which is what we design for — or keep us on a retainer for operations and continued delivery.

Yes, from the first commit. Work happens in your repository, under your organisation, on your cloud accounts. There is no proprietary Clownmind framework you have to keep paying to license.

Ready to talk about BigCommerce Development?

Thirty minutes, no deck, and a straight answer about whether we are the right studio for it.

Book the call
098916 18148WhatsApp