My site violates Google's quality guidelines, help!

My small site is violating Google's quality guidelines and I need to rectify that. I need a superhero professional, who knows what is required to get my site back into the good books of the bad guy Google. Please have experience in Google Webmaster Tools and dealing with challenges like this so we don't waste each others time. An example/proof of your previous work on this problem would be great. My content management system is Sliverstripe so you should also be familiar with this package to perform the necessary tweaks that are required. I won't make you rich but you will have regular work from me. Thanks for listening.