I Need A Coder Who Can Edit The HTML Of Webpages & Add Scripts To Pages

Hi I need an experienced programmer who can modify web pages on an ongoing basis and also add custom scripts to pages like countdown timers, javascript alerts, multiple pop unders to be triggered automatically on the page, control the users back button etc.

I also would need you on an ongoing basis to be able to modify the outbound links of a web page to links I will give you and upload these web pages onto my server.

Please write SAAS at the top of you profile so I know you've read this entire post all the way through and anyone who does not will not be picked for this position.
This work will be part time and will be as and when I need you so please quote me your hourly rate in the response tp this post and you MUST be flexible and available Monday - Sunday.

You must have experience editing web pages especially with javascript based commands as I may need you to do things like create exit alerts and javascript alerts that do not allow a user to exit my page and things like when the user visits my page, automatically 5 pop ups load in the background of their phone. So please if you have examples of work that you've done that is similar, please include it within your response as the best response will be picked!