BEAM

Seedlight BEAM: one place to run your whole eCommerce, with AI agents that know your business →

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Service · eCommerce Platforms

eCommerce platforms, built to sell

We design, build and launch custom eCommerce platforms: D2C storefronts, headless builds on an open-source core, and controlled migrations off SaaS or legacy. Fixed scope, a clear launch date and AI automation inside from day one.

  • Fixed price
  • 8-12 weeks to launch
  • AI automation inside

8-12 wk

From Blueprint to a live storefront

You own it

Your platform and data, no plugin waits

−34 h / mo

Manual work removed by AI workflows

What we build

01Custom storefront and headless commerce backend
02Checkout, payments and tax
03Product import and a clean data model
04Core integrations: ERP, PIM, payments, shipping
05Search, filtering and merchandising
06Deployment, monitoring and launch support

Production build

week 6 / 9
Storefront42s
Checkout & payments61s
Product import · 1 542 SKU3m 12s
Core integrationsbuilding…
Automation layerqueued
preview: sklep-marki.comfixed price · on schedule

How it goes

From kickoff to a working platform

Store Blueprint

We audit your current platform, product data and integrations, then turn it into a buildable migration or build plan with a fixed quote.

Foundation & data

Commerce backend, a clean product data model, catalog import, payments and tax, the parts everything else depends on.

Storefront & integrations

The storefront, checkout, ERP and shipping integrations, tested against your real catalog and order flow.

Cutover & launch

A controlled switch with redirects and data checks, so the shop keeps selling during the move. Monitoring and support after launch.

When it makes sense

You outgrew your SaaS platform

Every change waits for a plugin or support, and the platform now limits campaigns and growth.

You are launching a new brand

You want a foundation that scales with your catalog and channels, not a template you replace in a year.

Your platform can’t keep up

Checkout, product data or integrations break under your real volume and roadmap.

In practice

From a blocked SaaS store to an AI-native commerce platform

Exactly the example build below: a fine jewelry D2C brand migrated off SaaS to an AI-native platform in nine weeks.

https://herbaria.com
Fine jewelry D2C storefront built by Seedlight on Medusa.js

Example build · D2C fine jewelry

A fine jewelry D2C store on an AI-native platform: editorial storefront, AI content workflows in the admin and marketplace feeds from one catalog. Migrated off SaaS in nine weeks.

From workshop to launch9 weeks
Manual work removed34 h / month
Conversion after relaunch+18%

An example build: it shows the scope, pace and delivery model of a typical BEAM engagement. The brand shown is illustrative, hence the blurred logo.

„We finally knew what we were paying for and when we would launch. The plan from the Blueprint was worth it on its own."
COO · D2C skincare brand

FAQ

eCommerce platforms, built to sell

How long does an eCommerce platform build take?

It depends on scope, and scope is exactly what the Blueprint defines. A typical launch lands in 8 to 12 weeks; the fixed scope protects that date.

Can you migrate our store without losing SEO or sales?

Yes. We map redirects, preserve URLs and metadata, migrate cleaned product data and cut over in a controlled way, so the shop keeps selling during the move.

What technology do you build on?

A modern headless stack (Medusa.js commerce backend with a Next.js storefront) when it fits. The stack is a detail; you are buying a working platform, not a stack.

How much does a custom eCommerce platform cost?

Launch is a fixed price for a defined scope, set after the Blueprint. You know the number before development starts, with no open ended hours.

How is a custom platform different from SaaS like Shopify?

You own the platform and the data: no revenue-based fees, no waiting for plugins, integrations shaped around your processes instead of the other way round. SaaS is right for many stores, the Blueprint tells you honestly if custom pays off in your case.

Can you take over a store you did not build?

Yes. We start with a Blueprint of the existing platform: code, data and integrations. Its output is a plan, stabilise and extend what exists, or migrate in a controlled scope.

Stack & integrations

Technology we build this on

  • Medusa
  • Claude
  • Stripe
  • Revolut
  • DHL

Delivered on the BEAM framework: fixed scope, fixed price, a partner who stays.

Explore the framework →

Got an eCommerce platform to modernize? Let us talk.