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WooCommerce Development Services
Complex WooCommerce Development
We build and maintain custom WooCommerce systems for businesses whose catalogs, pricing, permissions, integrations or checkout flows have outgrown plugins and standard configuration.
From the official DHL and PostNL shipping plugins to 19 WooCommerce extensions maintained for Automattic, we build custom functionality that works with WooCommerce rather than fighting it.
Who We Build For
Standard WooCommerce works well until your business rules stop being standard.
It usually starts small: a workaround here, a second plugin there. Then several plugins start fighting over the same piece of business logic, or a requirement arrives that no existing plugin can safely implement.
That’s where we come in. We build the custom layer around WooCommerce that makes those rules reliable, while keeping the store maintainable, upgradeable and easy for your team to understand.
Problems we solve
Vendor Portals & Partner Access
Give vendors and partners controlled access to the products, documents, orders and data they need — without exposing the rest of your store.
B2B & Wholesale Workflows
Build around how your customers actually buy: negotiated pricing, quantity breaks, quotes, approvals, tax rules and bulk checkout.
Location-Based Commerce
Control products, pricing, shipping and purchasing rules based on country, region or delivery address.
Product Documents & Restricted Content
Show each customer, vendor or internal team the right documents, based on role, location or any other business rule.
Custom Checkout & Storefront Behavior
Fix flows where the problem is how the store behaves, not where it runs: checkout sequencing, variation selection, confirmation steps and other custom interactions.
Complex Integrations & Synchronization
Connect WooCommerce with marketplaces, carriers and external systems when products, inventory, orders or business rules need to stay synchronized.
What We Build
From migrations to custom integrations, we handle the parts of WooCommerce that require engineering rather than configuration.
Built to Official Marketplace Standards
Since 2021 we have maintained and extended official WooCommerce shipping and tax extensions for Automattic — the carrier integrations merchants install straight from the WooCommerce Marketplace.
Marketplace code has to pass Automattic’s review, survive every WooCommerce release and stay backward compatible. We hold custom work inside your store to the same standard, and we’ve written those engineering standards down.
HPOS Migration & Database Modernization
Move from legacy WooCommerce order storage to HPOS without leaving compatibility issues behind.
We audit the store, identify incompatible code, fix it, migrate with sync enabled, verify the result and keep rollback available throughout the transition.
Replatforming & Migration to WooCommerce
Move from Shopify, Magento or a legacy WooCommerce installation without treating migration as a simple data export.
We handle URL mapping, redirects, data integrity, plugin replacement and feature parity in the order required to keep the new store reliable.
WooCommerce Plugin Development & API Integration
Build custom WooCommerce functionality or connect the store to external systems.
From marketplace and carrier connections to payment gateways and custom admin tools, documented, tested and maintained after launch.
WooCommerce Website Development
Build or rebuild a WooCommerce store around the business instead of forcing the business into a template.
B2C, B2B and trade stores with custom checkout flows, mobile-first performance and an admin your team can run day to day.
The Evidence
Named clients, published projects and systems still running in production today.
19 extensions
Automattic
Official WooCommerce extensions maintained since 2021, with our team embedded in Automattic’s Slack and GitHub workflow.
Official plugin
DHL
We built and maintain the official DHL shipping plugin for WooCommerce, featured in a WooCommerce.com customer story.
3,000+ installs
PostNL
We rebuilt the official PostNL plugin around its new API and moved existing merchants across without any major technical issues.
3× revenue
Mighty Kids
Growth during the engagement, with 99.9% uptime and order processing 3× faster after the HPOS migration.
86% merchant conversion
Yoco
We took over a payments plugin, lifting merchant conversion to 86% and cutting support tickets by 90% within months.
400+ brands
Faire
We built the official Faire integration: two-way product and order sync, with product reconciliation built in.
“We’ve been working with Progressus for more than one year. They have been instrumental in the maintenance and development of some of our WooCommerce extensions and services.”
“They made an effort to understand the problem without jumping to a quick fix. They are now fully autonomous on the development process, efficiently solving the emerging issues and adding features when needed.”
Francesco Rosso, Automattic
Every number on this page links back to a published source: our case studies, the WooCommerce.com customer story, or our Codeable and Clutch profiles.
Frequently Asked Questions
What does complex WooCommerce development actually mean?
It means the business rule you need cannot be expressed safely through WooCommerce settings and existing plugins.
Examples include per-vendor permissions, negotiated wholesale pricing, location-dependent catalogs, document access and custom checkout logic.
The solution is not necessarily more plugins. It is often custom code built around WooCommerce’s architecture so the rule works without creating another fragile dependency.
Why not just buy another plugin?
Sometimes you should.
If an existing plugin solves the requirement properly, using it is cheaper and faster than custom development. We recommend custom work when no plugin supports the rule, when existing plugins require invasive modifications, or when multiple plugins are competing over the same business logic.
Who do you work with?
Our named clients include Automattic, DHL, PostNL, Faire and Yoco, alongside growing businesses such as Mighty Kids.
Company size is less important than technical complexity. A founder-led store can have the same engineering problem as an enterprise retailer if its business rules no longer fit standard WooCommerce.
How is a complex WooCommerce project priced?
We scope the actual store, plugins and integrations first, then provide a fixed quote. Projects start at €2,500.
The written scope defines what is included, what is excluded and what the project costs before development begins.
How does a project start?
You describe the problem in your own terms.
We investigate the store and its existing architecture, then provide a written scope and fixed quote. Where appropriate, this starts with an audit, such as our free 48-hour HPOS compatibility audit.
Who maintains the work after launch?
The same team that built it.
Development and long-term maintenance are one relationship rather than separate handoffs, the same way we run the carrier plugins and Automattic extensions we maintain today.
Have Business Rules WooCommerce Can't Express?
Tell us what your store needs to do. We'll tell you what needs to be built, what it should cost, and whether an existing plugin would do the job instead.
Who you'll work with
Shadi Manna
Founder
Scopes your project, leads discovery and stays your technical counterpart from first call to launch. Before Progressus, he worked with Hewlett Packard and Vistaprint on global technology initiatives.
Dustin Parker
Lead Developer
Leads the engineers who build and maintain your code, with an architecture-first approach. A Mighty Kids co-founder called him “an excellent problem solver” in a verified Clutch review.
Fixed quote · Written scope · Projects from €2,500