# WooCommerce developer

> WooCommerce developer for custom HPOS-compatible extensions, ERP and payment integrations, and store performance.

- Page: <https://www.datafirefly.com/en/expertise/woocommerce-developer/>
- Language: en
- Last updated: 2026-10-10
- Other languages: [fr](https://www.datafirefly.com/expertise/developpeur-woocommerce/index.md), [es](https://www.datafirefly.com/es/pericia/desarrollador-woocommerce/index.md), [de](https://www.datafirefly.com/de/fachkompetenz/woocommerce-entwickler/index.md), [it](https://www.datafirefly.com/it/competenze/sviluppatore-woocommerce/index.md), [pl](https://www.datafirefly.com/pl/ekspertyza/programista-woocommerce/index.md), [nl](https://www.datafirefly.com/nl/expertise/woocommerce-ontwikkelaar/index.md), [pt](https://www.datafirefly.com/pt/expertise/programador-woocommerce/index.md)
- Index: <https://www.datafirefly.com/en/expertise/llms.txt>

WooCommerce launches in a few clicks, but a store that really sells ends up with needs that off-the-shelf extensions handle poorly: a particular pricing calculation, a connector to your ERP, a B2B checkout, thousands of orders to process without slowing down the admin. We build custom WooCommerce extensions, compatible with HPOS and the block-based checkout, with the same rigour as the 42 WooCommerce extensions in our catalogue.

## What a WooCommerce developer does for you

### Custom extensions

Pricing rules, extra fields, delivery slots, quotes that convert into orders, configurable products, loyalty programmes. Our method is described in detail on the [custom WooCommerce extension development](https://www.datafirefly.com/en/expertise/woocommerce-extension-developer/) page.

### HPOS migration and block-based checkout

High-Performance Order Storage (HPOS) and the block-based checkout change the way extensions read orders and add fields. We audit your extensions, fix or replace the ones that fall short, then migrate on a copy before the switchover.

### Payment and B2B

Deposits, deferred payment for business customers, customer-specific pricing, quote requests, pro forma invoices. See also our [WooCommerce subscriptions](https://www.datafirefly.com/en/expertise/woocommerce-subscriptions/) and [WooCommerce plugins for B2B](https://www.datafirefly.com/en/solutions/wordpress/b2b-sales/) pages.

### ERP and accounting connectors

Orders, stock, prices, customers and invoices synced with your ERP, your accounting software or your logistics provider. Dedicated pages: [Sage WooCommerce connector](https://www.datafirefly.com/en/expertise/sage-woocommerce-connector/) and [Cegid WooCommerce connector](https://www.datafirefly.com/en/expertise/cegid-woocommerce-connector/).

### Performance on large catalogues

Queries on product metadata, an overflowing Action Scheduler queue, extensions that load their scripts on every page: we measure, then fix in order of impact. See the [WooCommerce Core Web Vitals optimisation](https://www.datafirefly.com/en/expertise/woocommerce-core-web-vitals-optimization/) page.

## Our WooCommerce development rules

- **WooCommerce CRUD API** rather than direct queries on the tables, to stay HPOS-compatible.
- **Long-running jobs in the background** with Action Scheduler, never during a page load.
- **Security by default**: nonces, capabilities, escaping, prepared statements.
- **Tests as a guest and as a logged-in customer**, with several VAT rates and payment methods.
- **Testing on a copy** of your store before going live.

## What affects the price

Our quotes start at €1,500 and stay fixed once the scope is approved:

| Factor | Impact |
| --- | --- |
| Cart and checkout | Changing the cart calculation, taxes or payment requires more test cases. |
| External integration | A modern API connects quickly; a file-based exchange requires more checks. |
| Volume | Tens of thousands of products or orders require batch processing. |
| Existing setup | Competing extensions covering the same feature add compatibility work. |

## Real examples

- [WooCommerce quote management](https://www.datafirefly.com/en/product/df-woo-quotes-woocommerce-quotes/) with PDF, email delivery and Stripe payment.
- [WooCommerce accounting export](https://www.datafirefly.com/en/product/dfwoo-fec/): FEC, Sage 100, EBP, Pennylane and other formats.
- [Axonaut connector](https://www.datafirefly.com/en/product/axonaut-connector-woocommerce/) to sync customers and invoices.
- [WooCommerce headless kit](https://www.datafirefly.com/en/product/headless-starter-kit/) for a decoupled front end.
- [WooCommerce server-side tracking](https://www.datafirefly.com/en/product/datafirefly-server-side/), client and server.

## What merchants say

A merchant who uses our extensions on her WooCommerce store:

- “Very good module, creating a quote and converting it is really easy.” _Tina (tapis-logo.com), WooCommerce Quotes plugin (review translated from French)_ ([see the product page](https://www.datafirefly.com/en/product/df-woo-quotes-woocommerce-quotes/))
- “Very easy installation!” _Tina (tapis-logo.com), Google Reviews Carousel plugin for WordPress (review translated from French)_

To date, every review published on our product pages is rated 5 out of 5.

## Who works on your project

You deal directly with the two co-founders, with no account manager and no subcontracting. Support replies within one business day, in French, English, Spanish or German.

- **Alexandre Navaeian** has run his own online stores for more than ten years, first on PrestaShop, then on Shopware 6 and WooCommerce, in B2B furniture, e-books and cosmetics. He designs and codes the catalogue modules: PrestaShop 1.7 to 9 architecture, Shopware 6 plugins, HPOS-compatible WooCommerce extensions, payment and ERP integrations. [LinkedIn profile](https://www.linkedin.com/in/alexandre-navaeian-43857171/)
- **Sasha El Mogherbi** handles digital marketing, server-side tracking, attribution and consent compliance (GDPR). He is certified in Google Search Ads 360, Display & Video 360 and Campaign Manager 360. [LinkedIn profile](https://www.linkedin.com/in/sasha-el-mogherbi/)

Our method and background are described on the [About us](https://www.datafirefly.com/en/about-us/) page.

## Going further

For a complete project, see [WordPress / WooCommerce site creation](https://www.datafirefly.com/en/expertise/woocommerce-store-creation/) or the [WooCommerce audit](https://www.datafirefly.com/en/expertise/woocommerce-audit/). For monthly support, see [WooCommerce maintenance](https://www.datafirefly.com/en/expertise/woocommerce-maintenance/). Our [WooCommerce extensions catalogue](https://www.datafirefly.com/en/categorie-produit/wordpress-plugins/woocommerce-en/) also covers SEO, compliance and customer loyalty.