code a simple Chrome extension to automate actions on a specific website

I need you to code a Chrome extension which shall automate a few actions on a specific website. If you are experienced in HTML, CSS and Java please message me so I will let you know all the details, including which website I need the extension for and also which actions shall get automated.
NB: I don't need owernship of the code/extension so you can sell it as you like and I can ensure you that there is a great demand. Please consider this when making your bid!