About Me

Hi, my name is Jonathan.

I am a programmer from Cape Town, South Africa with a passion for open-source software.

Jonathan Bossenger
Jonathan Bossenger (picture courtesy Florian Ziegler)

Development Lead at Castos

Three years ago, I was contacted by Craig Hewitt, a startup founder, about a new product he was building. Craig had recently purchased the Seriously Simple Podcasting plugin and its add-ons from Hugh Lashbrooke. With a Podcasting background, Craig wanted to build a SaaS that would provide beautifully simple podcasting hosting and related services to the users of Seriously Simple Podcasting. Thus, Castos was born.

Today Castos has grown from just Craig and me to a distributed team of 10, the plugin is used by over 20 000 podcasters around the world, with over 10 000 active customers using the Castos service.

Expert at Codeable

From August 2016 to September 2020, I solved technical problems for clients from around the world through Codeable. I focused on plugin development (both custom plugins and plugin extensions) and theme development, specifically adding custom functionality to themes via child themes or plugins. As of the 1st of October 2020, I left active freelance development to focus solely on Castos.

Writer, Blogger and Podcaster

Besides this blog, I have also written for the WordPress.com Go blog, the Jetpack blog, as well as Smashing Magazine and WP Tavern.

In my spare time, I host a small WordPress focused podcast where I interview folks from all over doing interesting things with WordPress. If this is you, let’s chat.


Whenever the opportunity provides, I try and speak at local events about various topics, including development, freelancing, PHP, WordPress, and Laravel. So far, I have spoken at WordCamp Europe (2019), WordCamp Cape Town (2016, 2018), WordCamp Johannesburg (2018, 2019) and PHP South Africa (2017).

WordPress contributor

WordPress has given me so much, so I do what I can to give back. Besides the time I put into the Seriously Simple Podcasting plugin and it’s add-ons, which Castos kindly sponsor, I have also released a few plugins on the WordPress plugin repository. I’m a community deputy, and I’ve been on or led the WordPress Cape Town organising team for three years. In September 2020, I stepped down from organising local WordPress meetups to focus on the WP Notify project.

Get in Touch

If you want to chat, feel free to find me on any of the following networks.

Alternatively, email me if you want to discuss a project, have a question, or want to say hi.

If anything you’ve found on this site was useful to you, and you want to say thanks, you can always buy me a coffee. I generally order an almond milk latte because I like the steamed milk texture but get a stronger taste of the espresso.