I have been working with Joomla for over 10 years. From the days of Joomla's inception, I have been: 1. Converting html websites to joomla managed websites; 2. Upgraded websites all the way through to joomla 3.8.x. 3. Ensuring the websites are monitored and cleaned of any malware. 4. Creating custom extensions for customers needs. 5. Integrating joomla websites to other sites (eg. Mailchimp, surveymonkey) As a result of maintaining over 20 joomla sites, my experience is extensive in: 1. Navigating joomla and keeping it secure; 2. Working out which extension is best to use; 3. Writing ajax scripts for custom code requirements. 4. Cleaning joomla sites of any size that have been infected by malware.