CRM Database Cleanup

We are looking for someone to come into our office located in Clerkenwell, London to spend a few days helping us tidy our CRM database. This will include tasks such as checking for duplicate contacts and merging them together and researching to find updated contact information. We are after someone who is experienced in working with data, very meticulous and a keen eye for detail. We deal with a broad variety of agencies but primarily in advertising, media and marketing network, so any knowledge or previous work in this area would be helpful. As you would be working directly off our database we would require you to come into the office rather than working externally. Additionally, we would require you to sign an NDA prior to starting work.