Website Penetration Test

I need a seasoned ethical hacker to run a full-scope penetration test against my live website. The priority is to uncover weaknesses that could expose our database or allow logic flaws in the web application to be exploited... (Budget: £750 - £1500 GBP, Jobs: Network Security, Penetration Testing, Risk Assessment, Security Auditing, Software Testing, Testing / QA, Usability Testing, Website Testing)