Chrome Addon: Rss Notification

Hello everyone, Our company is looking for an expert in web programming to create a Google Chrome Addon. The Add-on will work together with our Wordpress site for these functions: 1) Check the rss feed and notify the user with an audio popup (check attachment) about a new post published, showing title, image, part of the description and a call to action like "Read More" 2) Have an icon that when clicked the same popup opens with some arrows so that the user can browse all the posts in chronological order 3) Have settings that will allow the user to disable the audio in the notification It's important when applying for this job that you specify if you've already created Add-ons in the past and you link me some examples. Thanks Marcello