Can you hack my server? SECURITY EXPERT NEEDED

We run a website in a niche that is known for hack attempts and other malicious activity and are looking for your help. If you are a security expert then this job is for you! We challenge you to try and hack our website/server (Obviously doing nothing bad) but just to see if it is possible). This is the first part of the job. The second part is going to be going through our server and making sure all vulnerabilities are patched or fixed to make sure we can not be hacked. If you have other unix system management experience that would be helpful as well, as we need some other work done on the server too!