PPC Account Manager

I need a freelance PPC expert to help cover a busy period in January. My agency works with a number of retail clients and we need an extra pair of hands to help set up and manage campaigns. Someone with online retail experience would be idea. Our office is based in London EC1 and we would need someone 9.30-5.30 for atleast the first 2 weeks in Jan - possibly longer. Please let me know your relevant experience when bidding for this role.