Your real margin is invisible.
Shopify says one thing, Seller Central another, Meta a third. None of them include your actual COGS, shipping, or Amazon fees — so nobody knows which SKU actually makes money.
Know your true profit. Per SKU. Per channel.
We build your e-commerce data warehouse in your own Google BigQuery — store, ad spend, Amazon fees and real costs unified, with ROAS, LTV and contribution-margin dashboards.
Live in 14 days · $12,000 flat
We work in your stack — you own everything.
- BigQuery
- WooCommerce
- Shopify
- Amazon SP-API
- Google Ads
- Meta Ads
- GA4
- Looker Studio
- Klaviyo
- dbt
Three numbers, three different stories
Attribution broke and never came back.
Since iOS 14, pixel numbers don't match your bank account. You're scaling ads on estimates.
Amazon is a black box of fees.
Referral, FBA, storage, returns, lost reimbursements. The settlement report answers none of it per SKU.
The math on getting this done
| Option | Cost | Time to live | You own the data |
|---|---|---|---|
| In-house data engineer | $130k+/year | 3–6 months hiring | Yes |
| Full-service agency | $15–50k/month | months | Rarely |
| Freelancer | $20–60/hour | open-ended, often unfinished | If they finish |
| SaaS dashboard | $5–9k/year, grows with your GMV | days | No |
| Stotrade Data Warehouse Sprint | $12,000 flat | 14 days | Yes — it's your BigQuery |
The Data Warehouse Sprint — everything on this list, nothing billed by the hour
Store pipeline
WooCommerce or Shopify → your BigQuery, real-time via webhooks. No middleware subscriptions ($50–150/mo saved, forever).
Ad spend unified
Google Ads + Meta into the same warehouse.
Your real costs
COGS, shipping, ops costs modeled in. This is what makes margin true.
Metrics that matter
Blended & per-channel ROAS, cohort LTV, contribution margin per order and per product.
Three dashboards
Sales Overview, Marketing/ROAS, Costs & Margin. Looker Studio, free forever.
Handover
1-hour walkthrough + documentation. Your project, your data, your access.
Amazon add-on: unified DTC + Amazon P&L per SKU (+$5–7k) Warehouse Rescue: we finish what your freelancer started ($6–9k)
If we don't deliver in 14 working days from access handover — full deposit back. 50% to start, 50% on delivery.
Built and running in production
Labify
WooCommerce · from zeroA complete GCP data platform from scratch
Full stack built from zero: BigQuery warehouse, real-time WooCommerce ingestion via Cloud Run webhooks (no third-party connector fees), nine production reports, and ongoing development as the business grows.
Paryskie
WooCommerce · 9 marketsOne warehouse for a nine-market fragrance retailer
Multi-market e-commerce unified in BigQuery: orders, ad spend and operating costs in one model, powering ROAS and margin reporting, Power BI semantic models, and Google Customer Match audience activation across 9 European markets.
Manufacturing analytics
Industrial BIBeyond e-commerce
Production analytics, planning tools and machine-vision quality systems for one of Poland's largest roofing manufacturers — the same data engineering, applied to factory floors.
Then we become your data team
APIs change 3–4 times a year. Pipelines break quietly. Questions keep coming. After the sprint, most clients keep us on a flat monthly retainer: we run your pipelines and GCP, watch for anomalies, ship new dashboards and analyses on request — and you get an AI command center on top of your own data.
Core
$1,200/mopipelines, GCP ops, alerting, ECC access, 2 dashboards/analyses monthly
Growth
$2,000/moeverything in Core + Merchant Center & feeds, email deliverability, consent mode, Amazon fee monitoring & reimbursements, monthly strategy call
Monthly in advance, 30-day notice, pause anytime.
Who you'll actually work with
P
I'm Piotr — a data engineer from Kraków, Europe's largest software-outsourcing hub. I've built and run production data platforms for multi-market e-commerce, labs and manufacturing for 8+ years. Every sprint is delivered by me personally: senior engineering at Kraków cost structure is exactly why a $12k flat fee works. I'm in Chicago September 13–26 — happy to meet in person.
— Piotr, Stotrade
FAQ
Who owns the data and the infrastructure?
You do. Everything is built in your Google Cloud project, under your billing and access. If we part ways, everything keeps working.
What do you need from us to start?
API access to your store, ad accounts, and a GCP project (we'll guide you through creating one — takes 15 minutes). The 14-day clock starts when access is complete.
What does the warehouse cost to run?
Typically $20–80/month in Google Cloud fees at $1–10M revenue scale. No middleware subscriptions.
We already use Triple Whale / Polar.
Great — they're dashboards on estimated data. We build the layer they can't: your true costs and margins, in infrastructure you own, at a price that doesn't grow with your GMV. They can run side by side.
A freelancer quoted us less.
Probably hourly, open-ended, and abandoned at 80%. We've taken over several of those builds — it's literally a service we offer (Warehouse Rescue). Flat fee, hard deadline, guarantee.
What happens after 14 days?
Handover with documentation — it's yours. Most clients continue with the retainer, but it's optional.
Booking Chicago meetings now — September 13–26
30 minutes, no deck, no pressure. Bring your numbers, I'll show you a live warehouse — and tell you honestly whether this is worth it at your scale.
Prefer email? piotr@stotradedata.com