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Julien Cousin

@jcousin on WordPress.org

Bio

Hi, I’m Julien – a senior WordPress developer with over 10 years of experience building fast, secure, and custom websites for clients across industries. I specialize in WooCommerce, custom plugin development, API integration, and performance optimization.

Beyond coding, I’ve led projects as a tech lead and product owner, allowing me to bridge the gap between business needs and technical solutions. I’ve worked with high-traffic websites, complex eCommerce platforms, and subscription-based services, always focusing on long-term stability and usability.

Reliable, proactive, and solution-oriented — I believe in delivering clean, scalable code and building partnerships based on trust and results.

WordPress Origin Story

Like many developers, I didn’t start with WordPress — but I quickly saw its power.

Early in my career, I was building custom websites for clients who needed both flexibility and control. WordPress was the perfect fit. I dove deep into the ecosystem, learning how to go far beyond themes and plugins. I started writing custom code, building my own plugins, and optimizing performance from the ground up.

Over the years, WordPress became more than a tool — it became my specialty. I’ve used it to build everything from eCommerce stores to custom CRMs and complex subscription platforms. What I love most? It’s endlessly extensible, and I know how to make it do exactly what a business needs — no more, no less.

  • Member Since: April 23rd, 2016
  • Location: Annecy, France
  • Job Title: Senior Wordpress Developer
  • Find me on:

  • Created a topic, Block on loading on checkout page, on the site WordPress.org Forums:
    I bought the plugin but when I have it activated I can…

  • Created a topic, Redirect, on the site WordPress.org Forums:
    Hi, I use your plugin to send a verification email, bu…

  • Created a topic, Design, on the site WordPress.org Forums:
    Hi, I´d like to know if I can change the design of th…

  • Created a topic, Doble item, on the site WordPress.org Forums:
    Hi, I bought the plugin which is great, but I have a p…

  • Created a topic, Requiremetn, on the site WordPress.org Forums:
    Hi, I try the free plugin and for what I see I like it…

  • Created a topic, Downloadable product error media upload, on the site WordPress.org Forums:
    Hi, I have a problem with my site, I create a downloa…

  • Posted a reply to um_directory, on the site WordPress.org Forums:
    Well, I had to set up back all the website, because I had a conflict,…

  • Posted a reply to Redirect, on the site WordPress.org Forums:
    I've check the code, but doesn't work. And thats strange, because I have this code…

  • Posted a reply to um_directory, on the site WordPress.org Forums:
    I tried it and had some problem, so I had to install everything again, but…

  • Posted a reply to um_directory, on the site WordPress.org Forums:
    Thats my problem, I haven't this menu in the backoffice of wordpres, Any clue why…

  • Posted a reply to um_directory, on the site WordPress.org Forums:
    The first screenshot is the page with the search box (http://104.236.200.8/miembros/), but it send me…

  • Posted a reply to um_directory, on the site WordPress.org Forums:
    Perhaps I didn't well myself, check the screenshot please: http://104.236.200.8/wp-content/uploads/2016/11/a.png http://104.236.200.8/wp-content/uploads/2016/11/b.png Tis is my link…

  • Posted a reply to um_directory, on the site WordPress.org Forums:
    The problem is that I haven't the menu which allow me to create a um…

  • Created a topic, um_directory, on the site WordPress.org Forums:
    Hello, I have a problem on one of my site, I don;t hav…

  • Posted a reply to Redirect, on the site WordPress.org Forums:
    Here is the code, thanks. add_filter('um_profile_tabs', 'add_custom_profile_tab', 20 ); function add_custom_profile_tab( $hisTab ) { $hisTab['reforma']…

  • Posted a reply to Redirect, on the site WordPress.org Forums:
    Hi and thanks for helping me. Yes, I tried to deactivated everything but still not…

  • Created a topic, Redirect, on the site WordPress.org Forums:
    Hi, I've got a problem with wp-redirect, it was workin…

  • Created a topic, Messages, on the site WordPress.org Forums:
    Hi, I'd like to know if it's possible to send an ema…

  • Posted a reply to Capabilities, on the site WordPress.org Forums:
    I'm trying as an Editor to add an eent, but I don't access to the…

  • Posted a reply to get_current_user_id return 0, on the site WordPress.org Forums:
    THanks for the answer, I reinstal everything and it's working, I don't what's happen. Thank…

  • Posted a reply to get_current_user_id return 0, on the site WordPress.org Forums:
    Thanks for your help but it doesn't work. The strangest thing is that in the…

  • Posted a reply to Error Profil, on the site WordPress.org Forums:
    All done, I found the error, thanks to close the thread J

  • Created a topic, Capabilities, on the site WordPress.org Forums:
    Hi, I'd like to offer the possibility at some users to…

  • Created a topic, get_current_user_id return 0, on the site WordPress.org Forums:
    Hello, I have a website which when I use get_current…

  • Posted a reply to Error Profil, on the site WordPress.org Forums:
    Sorry you couldn't see the pictures. Let me know if there is any solution. thanks…

  • Posted a reply to Tickera – Woocommerce – Marketplace, on the site WordPress.org Forums:
    Thanks for your answer, but what I was looking for, is not a multisite, because…

  • Created a topic, Tickera – Woocommerce – Marketplace, on the site WordPress.org Forums:
    Hello, I've a question, I've seen that I can sell tic…

  • Posted a reply to Error Profil, on the site WordPress.org Forums:
    Thanks for answering, as you can see in those picture, setup are right, and the…

  • Created a topic, Error Profil, on the site WordPress.org Forums:
    Hi, Since I update to the nwe version I have a probl…

  • Posted a reply to Add Forum, on the site WordPress.org Forums:
    Hi, I´ve just upload the new version, but I still can't create a forum with…

  • Posted a reply to Statistic for vendor, on the site WordPress.org Forums:
    Hi, thanks for your answer. I've check the front-end report and there are ok, but…

  • Created a topic, Statistic for vendor, on the site WordPress.org Forums:
    Hi, I see that the vendor can havesome statistics, b…

  • Posted a reply to Add Forum, on the site WordPress.org Forums:
    HI, I saw that you upload a new version, but I still can't create a…

  • Posted a reply to Add Forum, on the site WordPress.org Forums:
    Ok, and do you know if it will be possible to create a forum in…

  • Created a topic, Add Forum, on the site WordPress.org Forums:
    Hi, I'd like to allow some users to creat forum, but…