E-Commerce Engineering

WooCommerce Development for Stores That Have Outgrown Templates

Multi-region storefronts, custom checkout logic, and performance work that page builders and AI scaffolding cannot deliver.

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The Problem

When Templates Stop Working

WooCommerce is straightforward until your business stops being straightforward.

Then you need six storefronts sharing one catalogue but diverging on tax logic, shipping rules, payment methods, and legally required checkout fields. You need a checkout that collects a street number in Germany, where it sits at the end of the address line, and in Portugal, where it sits at the start. You need pricing that respects VAT display rules per market. You need it all fast enough to pass Core Web Vitals on a mid-range Android phone.

At that point the plugin marketplace stops helping. Every additional plugin is another update cycle, another conflict surface, another 200ms. The answer is fewer, better-written extensions built specifically for your logic.

That is the work we do. No juniors, no hand-offs.

What We Build

What We Build

Multi-Country Storefronts

  • Six-plus market architecture on a shared codebase
  • Per-market tax, shipping, and payment configuration
  • Localised checkout with locale-correct address validation
  • Currency and pricing logic per region
  • Unified admin so your team manages one system, not six

CheckoutWC Deep Customisation

  • Custom fields, conditional logic, and validation on `cfw_` hooks
  • Mobile cart and step-flow restructuring
  • Order-bump and upsell placement
  • Checkout-abandonment event capture wired to your tracking

Custom Plugin Development

  • Purpose-built extensions instead of stacking marketplace plugins
  • Clean, prefixed, hook-based code with no core edits
  • Sanitised inputs and escaped outputs throughout
  • Documented and handed over with maintenance notes

Performance & Core Web Vitals

  • Query and asset auditing, plugin-bloat removal
  • Image pipeline, lazy loading, layout-shift elimination
  • Caching and CDN configuration
  • Measured LCP, INP, and CLS before and after

Platform Migration

  • Shopify, Magento, and PrestaShop to WooCommerce
  • Catalogue, customer, and order history migration with integrity checks
  • URL mapping and redirect strategy to preserve rankings
  • Tracking rebuilt as part of the move, not after it
Field Notes

Common Mistakes We Find

Patterns from audits we have run. If you recognise two or more, the gap is probably costing you more than it appears to.

Six plugins doing one job.

Each adds an update cycle, a conflict surface, and page weight. One well-written extension is cheaper to own than the stack assembled to avoid writing it.

Customisations in the parent theme.

Code added directly to a theme's `functions.php`, wiped by the next update. Usually discovered when something breaks and nobody knows what changed.

One address format for every market.

German street numbers go after the street, Portuguese before. A single validation rule produces undeliverable addresses in half your markets, and support absorbs the cost invisibly.

Full-resolution product images.

3000px images scaled to 400px in the browser. The single most common cause of a failing LCP on a WooCommerce catalogue.

No staging environment.

Changes tested in production because there is nowhere else. Every deployment is a live experiment on paying customers.

How We Work

How We Work

01

Step 01 — Technical Audit

Codebase, plugin stack, performance baseline, and the actual business logic behind the requirements.

02

Step 02 — Scope

A written plan with timeline and measurable acceptance criteria.

03

Step 03 — Build

Staging-first, version-controlled, reviewed.

04

Step 04 — Test

Cross-market, cross-device, cross-browser, plus tracking validation.

05

Step 05 — Deploy & Document

Production release with rollback plan and full documentation.

No Surprises

What Happens Next

01

Step 01 — You hear back within 24 hours.

A real reply from the person who would do the work, not an autoresponder or a junior scheduling a call about a call.

02

Step 02 — We look before we talk.

Send us access or a URL and we review your actual setup first, so the conversation starts with findings instead of discovery questions.

03

Step 03 — 30 minutes, findings first.

We walk you through what we found and what it is costing. You get that regardless of whether you hire us.

04

Step 04 — A written scope, or an honest no.

If it is a fit, you get scope, timeline, and cost in writing. If it is not, we say so and point you somewhere better.

No retainer required. No minimum term. No obligation at any step.

Stack
WooCommerceWordPressCheckoutWCACFWPFormsPHP 8MySQLElementorCloudflareDocker
6

Markets, One Stack

DE, FR, PT, ES, IT, UK — unified tracking, regional checkout logic, shared admin.

PAJ GPS · E-Commerce
Fit Check

Is This Right For You?

We would rather tell you now than after an invoice. Here is who this work pays off for, and who it does not.

A good fit if:

  • You are doing €25,000+ per month in online revenue, where a few percent of recovered attribution is real money
  • You are running paid media and the reported numbers do not match your bank
  • You sell across more than one market, currency, or storefront
  • You have a developer or agency who can act on what we find
  • You want to own the implementation afterwards, not rent it

Probably not a fit if:

  • You are early stage and validating the product — fix demand first, measure it later
  • You want someone to manage ad spend day to day; we build the measurement layer, we are not a media buying agency
  • You need it live this week; proper implementation has a validation phase and we will not skip it
  • You want the cheapest quote — we are not it, and the cheapest tracking build usually gets rebuilt

Most engagements start from €1,500. We confirm scope and cost in the discovery call, before anything is committed.

Get Your Free Audit

Tell us about your setup. We respond within 24 hours.

Not ready to write it all out? Book a 15-minute discovery call →

FAQ

Common
Questions

Ready to Build Something That Works?

Book a free 30-minute strategy audit. No pitch deck, no pressure — just an honest look at your setup and what to fix first.

Not ready to write it all out? Book a 15-minute discovery call →

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