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Are you looking for a WordPress plugin developer?

First, let’s make it clear when you would need a plugin developer. Typical cases are the following:

1. You want your site connected with an online service, but couldn’t find a WordPress plugin for it

Story: one of my clients wanted to have automatic invoicing set up on her website. Unfortunately there wasn’t any WordPress plugins out there that offered API connection with that invoicing service. So that I wrote a custom plugin for her that did the job.

2. You have an online service that needs to be connected with lots of WordPress sites

Story: Some years back when I was working for a digital agency, we had a client that operated a successful newsletter delivery software. They had a WordPress plugin already, but it was outdated and lacked some essential functions. So we took over the development and improved their plugin to be more functional and usable.

Ramona Pietersz's quote

3. Your site needs a new functionality

Story: one of my favorite clients needed a plugin that showed important business indicators in their WordPress Admin Dashboard. Such as Monthly Recurring Revenue, Churn Rate, Number of New Subscriptions, etc. So I created it.

Story 2: a client had an external script showing a slider of blog posts on their pages. The problem was that this external script was slow an unreliable (why they used it was the ease of its installation). So we made a slider plugin that gave them the same look while eliminating the previous solution’s weaknesses.

4. You have an essential plugin on your site that is no longer maintained

Story: it happened with the first client I mentioned in point 3. above. Their business was strongly built on the functionality of a WordPress plugin that was no longer maintained by the original author. It started to be less-and-less compatible with new WordPress versions, so they had to make a decision:
– A) Move to another plugin (= HUGE WORK)
– B) Don’t update WordPress (and incompatible plugins) after a certain version (= insecurity)

So I recommended them solution C), which was creating our own version of their old plugin (forking it), then developing it further based on their needs – with also maintaining it to be compatible with the latest WordPress and PHP versions.

Peter Johansson's quote

5. You need a long-time plugin developer partner

Story: Since March 2019 I am developing a premium plugin (https://checkoutcharlie.com) that automatizes the checkout processes (order » payment » invoicing » follow-up emails » participant list) of event organizers. While this plugin is still in beta phase, its 3 active users have already made more than $10,000 sales using it.

Story 2: See point 2. above (when I developed the API connection plugin for the newsletter software). I really enjoy it when I am involved in something that evolves over time – thanks to hard work.

6: You need a WooCommerce add-on that doesn’t exist yet

Story: A client needed a system that managed license keys sold by their WooCommerce shop. They couldn’t find an out-of-the-box solution, so they outsourced it to me. After a few rounds of planning I coded it as a WooCommerce add-on plugin.

Story 2: A client wanted to sell event tickets using their WooCommerce shop. The existing plugin they had did the job – but only on a very basic level. In order to make their site sell better, they needed an add-on with all the necessary sales extensions (better presenting their offers, more post-sale communication with the customers, etc). That’s where they approached me. Finally they have a website that works as they imagined it.


Who am I?

Black&White photo of Ervin

Hello, I am Ervin, a WordPress developer with 10 years of experience designing and coding WordPress websites, plugins and themes. In the last few years I specialized myself in WordPress plugin development.

I have made 30+ plugins for different businesses, mostly based in the USA, UK, Australia and in the EU.

Beside being a plugin developer I have quite good experience with UX planning. I consider UX (User eXperience) an important aspect of plugin development, as I think a plugin is reaaly good if it not only does what it has, but it does it in an intuitive, easy-to-use way.
(Just think about it: the easier it is to use a plugin, the less amount of support requests you are going to receive)

If you’d like to learn more about my history and previous clients, visit my Portfolio page or my Linkedin profile.

I am also the developer of the TPL (Tiny Plugin Loom) Framework that is starter kit for building plugins with lot of settings.


We often work as a team on larger projects (under the name a-idea studio) together with the following experts:

Hermina Domonkos – graphic design
She is my wife and my graphic design partner with long years of experience with Adobe stuff (which is, well… my weakness) and an incredibly good sense for what looks good and what doesn’t. In case you need unique graphic elements for your plugin, she is the one who will help us.

László Felföldi – senior WordPress developer
László has 6 years experience with programming all the languages related to WordPress: PHP, JavaScript, CSS. Why we like working with him is the high quality code he provides while paying attention to all the little nuances, too.


How we will work together

Work process

Sounds like something that you are looking for?
» Get in touch with me


Ervin's Codeable Certificate codeable

Customer reviews

Ervin Domonkos | a-idea studio 2020-08-26T22:12:47Z 5
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Easy, Fast & Very Communicative. Using Ervin for another project and will continue utilizing his services.

Costas Themistocleous
Ervin Domonkos | a-idea studio 2020-08-20T14:40:16Z 5
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Ervin was great, he took the time to understand our requirement and modify it until it met our need, and then execute the project with speed and professional communication along the way. Highly recommend!

Robb Smith
Ervin Domonkos | a-idea studio 2020-08-19T13:31:03Z 5
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Will be working with Ervin!

Rishi Ravi
Ervin Domonkos | a-idea studio 2020-06-01T19:48:30Z 5
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As always, very professional and fast work on a relatively difficult problem.

Peter Johansson
Ervin Domonkos | a-idea studio 2020-02-27T13:39:45Z 5
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It is phenomenal to work with Ervin. He communicates very good and works well organised. I highly recommend him!

Ramona Pietersz
Ervin Domonkos | a-idea studio 2020-01-23T14:15:07Z 5
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Ariela Pelaia
Ervin Domonkos | a-idea studio 2019-10-14T15:40:41Z 5
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OLiver Gausmann
Ervin Domonkos | a-idea studio 2019-08-08T20:56:11Z 5
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Ervin is the most talanted Wordpress developer I've ever had the pleasure to work with during my 20 years in this business. I give him my highest recommendations.

Peter Johansson
Ervin Domonkos | a-idea studio 2019-05-09T21:17:39Z 5
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Ervin has saved me oodles of time trying to fix an annoying rendering issue. Always quality work. Turnaround time fantastic. Thank you Ervin!

Catherine Hughes
Ervin Domonkos | a-idea studio 2019-03-25T15:42:43Z 5
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Awesome to work with. Will hire again.

Michelle Dudley
Ervin Domonkos | a-idea studio 2019-03-18T21:31:37Z 5
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Great patience!

Catherine Hughes
Ervin Domonkos | a-idea studio 2019-02-28T11:51:54Z 5
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Ervin is phenomenal to work with. He is highly skilled, thinks through the situations and provides creative options. Ervin communicates regularly with progress updates and has consistently exceeded my expectations.

Mike Gauss
Ervin Domonkos | a-idea studio 2019-02-13T17:43:02Z 5
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Meko Cain
Ervin Domonkos | a-idea studio 2019-01-29T03:52:11Z 5
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Quick turnaround and like always Ervin thought beyond just a solution and thought of all the 'what if' issues I didn't even think about. Excellent.

Catherine Hughes
Ervin Domonkos | a-idea studio 2019-01-09T11:27:29Z 5
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Great job

Andres Saavedra