Freelance WordPress developer, Jeffrey van Rossum · vanrossum.dev       

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Freelance WordPress developer, Jeffrey van Rossum
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 Freelance WordPress developer Jeffrey van Rossum 
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 Kathmandu · remote 

  ![](https://vanrossum.dev/images/jeffrey-portrait-dark.webp) ![](https://vanrossum.dev/images/jeffrey-portrait.webp)  

I'm Jeffrey van Rossum, a product engineer from the Netherlands. I build and ship my own WordPress plugins and SaaS products, and I take on freelance WordPress work when it's a good fit. Custom plugins, themes, WooCommerce, and the integrations around them. I've been in this stack for over ten years.

A lot of that work is APIs. Forms that need to send data to a CRM. Subscriptions that have to stay in sync with another system. I sell a Gravity Forms add-on for exactly that: [Send to API](/products/gf-send-to-api).

I also do AI work. Custom chatbots, RAG search, embeddings over a company's own content. [Datalumo](https://datalumo.app/) is my own product for that, and I've done similar things for clients.

PHP and JavaScript are what I work in most, plus HTML and CSS (usually Tailwind). Laravel and WordPress are the main stacks. I'm happy to pick up other languages or tools when a project needs it. AI has made that a lot more practical.

Why WordPress
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WordPress is still where a lot of real businesses live. You can move fast with it, and when the off-the-shelf plugins stop fitting, custom work is usually the honest answer.

I've built quite a few of those. For a company in publishing I worked on a subscription plugin that syncs to a CRM. I've also published several [open-source](https://profiles.wordpress.org/jeffreyvr/#content-plugins) plugins, including TailPress and others on my [GitHub](https://github.com/jeffreyvr).

Dutch and international clients
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I'm based in the Netherlands and work with Dutch and international clients, usually remotely.

I often travel in Asia, including Hong Kong. When I'm in the region, visits and overlapping hours are easier.

What I take on
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- Custom plugins and themes, including block editor tooling
- WooCommerce
- APIs, webhooks, CRMs and other integrations
- AI chatbots and RAG search over your own content
- Tailwind CSS and Alpine.js
- Hourly, project or contract. Rates on request

I work in Dutch and English, on my own or in a team.

More about how I work overall is on the [freelance](/freelance) page. Prefer Laravel? See [freelance Laravel](/en/freelance-laravel-developer).

 Local time  🇳🇵 Kathmandu  Nepal 

 07:02

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 Ready to work together? Got a project, a question, or want to spar for a bit? Feel free to drop me a message. 

 [reach out →](https://vanrossum.dev/contact) 

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