Wordpress Website Tech Support, Maintenance & Customization

Hello, I have a wordpress website which heavily relies upon Gravity Forms for it's functionality. We produce a daily email newsletter, through Mailchimp, and post daily updates to our Social Media pages using autoposting plugins. I require someone to act as my 'go to' technical support for this website. The person must have a variety of skills, including an advanced knowledge of Wordpress, MySQL and php, as well as other web technologies and the ability to deal with any hosting / server related issues. I have had a php developer adding some customization, and he has added the site to Github, so you will also be required to use this, for any updates. Some of the tasks I will require: + Wordpress needs updating soon + Plugins require updating, this needs to be managed + I have tried installing a banner advertising plugin but it will not work, I need someone to troubleshoot this + I need my home page template customized + I am using a 'pop-up' plugin but it is bigger than I need, so I would like someone to find a better one for my needs + We have a customized admin page, built in html, css and php, I need some further features added to this + We have a custom plugin, that keeps the site clear of unecessary images and helps it run, you will need to become familiar with this + I have a variety of Gravity Forms customizations I require, you will need to be familiar with Gravity Forms or, your understanding of php must be strong enough to use this + I will be migrating the site from LiquidWeb to SiteGround, this will need to be handled with the minimum of downtime The site is in constant use, and is updated almost every hour with new content. IT is a very busy website and requires maintenance, troubleshooting and technical support on a weekly basis. You need to be confident you can do this. I have stated that this job would be about 4 hours per week, for $50 per week. This is an ongoing job, for the right person. You will need to use [Removed by Freelancer Admin] and be available on a daily basis. The hours you work can be negotiable, depending upon the urgency of the tasks each week. This job will require someone with all the necessary technical skills, but also - someone with a strong command of English (preferably first language or fluency). And someone who is a good communicator and can behave in a reliable, trustworthy fashion. I do not want someone who disappears for days. Or someone who cannot be available on Skype. Or agrees to a deadline and misses it without any communication. My current developer will remain available to me for consultation, so I will be mediating with him over this work and, to begin with, he will assess the work you do for the first few weeks/months, on my behalf. I am an English man, currently located in Greece. But my site works on Central US time. I have an international team. I can give you access to my developer, for a testimonial, if you wish to assess my reputation as a potential employer. Thank you for reading.