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)

Lead Developer 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 it’s add-ons from Hugh Lashbrooke. With a background in Podcasting, 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 myself to a distributed team of five, the plugin is used by over 20 000 podcasters around the world, with thousands of active customers using the Castos service.

Expert at Codeable

Since August 2016 I have been solving technical problems for clients from around the world through Codeable. I focus on plugin development (both custom plugins and plugin extensions) as well as theme development, specifically adding custom functionality to themes via child themes or plugins. My favourite type of project is building custom API integrations.

Writer, Blogger and Podcaster

Besides this blog, I also write for the WordPress.com Go blog, helping small business and entrepreneurs build their own business websites on WordPress.com, grow their audience and be successful. I’ve also contributed to the Jetpack blog as well as Smashing Magazine.

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) 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 is kindly sponsored by Castos, I have also released a few plugins of my own on the WordPress plugin repository. I’m a community deputy and I’ve been on or leading the WordPress Cape Town organising team for the past three years. I also co organiser the WordPress Cape Town meetups with fellow organisers, Hugh Lashbrooke and Bruce Lunnis.

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 chat, have a question or just 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.