MadFish Engineering
API integrations, catalog data at scale, and custom features for growing BigCommerce businesses. Designed and built by a senior architect, from the first call to launch.
BigCommerce Agency Partner · B2B certified · Assessments from $3,500
When your business runs on more than a storefront, the hard part is everything around it: the systems that need to talk, the catalog that needs to be right, and the features no theme includes. That is the work we do.
Connect your store to everything it depends on.
BigCommerce connected to your ERP, inventory, distributors, marketplaces, point of sale, and accounting. Built on the platform’s APIs and webhooks, with monitoring so you know the moment something stops syncing.
Catalogs at scale, cleaned and structured.
Product data that helps you sell instead of holding you back. Enrichment, taxonomy, bulk transformations, and migrations across tens of thousands of products, done in days rather than months.
Features your platform doesn’t ship with.
Custom tools your customers use and the admin tools your team runs them with. Built for how you sell, and owned by you.
A great storefront is where growth starts. As a business grows, the work moves behind the store: the systems, the data, and the features that make it run. We build on the store you already have, or on our best storefront designs.
A strong BigCommerce store that customers already trust.
The systems, data, and features behind the store, built around how you sell.
What we built keeps running and keeps getting better, month after month.
A few of the projects behind the practice. Client names are kept private; the work speaks for itself.
Every product in a 55,000-item catalog enhanced and live within a single week.
We reviewed 100,000 products, designed the ideal category taxonomy, and placed every product where shoppers expect to find it.
Shoppers pick their firearm and see the holsters that fit it. The brand manages every fitment through a full admin tool set built alongside it.
A store’s catalog connected to gun.deals, putting its products in front of shoppers comparing firearm prices.
Iron Register and Black Beach POS integrate directly with BigCommerce, and our products can already send inventory updates to Flxpoint. We build integrations for ourselves before we build them for you.
Large agencies sell with their most experienced people, then pass the work down the line. We don’t. The architect who scopes your project designs it and builds it, with AI-assisted tooling that makes catalog-scale work fast and exact.
No account managers or junior teams between you and the person doing the work.
Architecture, scope, and decisions documented, so you own the knowledge as well as the code.
We take on a limited number of engineering engagements each quarter, so each one gets full attention.
Every engagement starts with a paid assessment. It gives you a clear plan and a fixed price before any build begins, and it is yours to keep whatever you decide.
From$3,500Fixed fee, one time
We map your systems, audit your data, and design the architecture. You receive it in writing, with a fixed-price proposal for the build.
Typically$15k–$100kFixed scope, priced in your assessment
We build what the assessment defined, in milestones you review along the way. No open-ended hours, no surprise invoices.
From$2,500Per month, based on scope
We keep what we built running and keep improving it. Monitoring, enhancements, and a direct line when something needs attention.
Each month you see what ran, what changed, and what needs attention, so issues are handled before your customers notice them.
An illustrative example, not a client’s data.| Integration | Status | Last sync | Trend |
|---|---|---|---|
| ERP → BigCommerce orders | Healthy | 2 min ago | |
| Distributor inventory feed | Healthy | 15 min ago | |
| Marketplace listings | Needs review | 1 hr ago | |
| Product data enrichment | Healthy | Today, 6:00am |
Share a little about your business and what needs to change. We’ll review it and set up a call to scope your assessment.