Organic website SEO (not PPC)

We are looking for someone on a ongoing basis to managed our website www.exceeding.uk.com organic SEO traffic. Must have experience of assisting other organisations improve organic traffic. Two plus years of PPC data to assist with optimization. We would also require experience in our CMS which is Drupal 7.

We are a small consultancy firm and we are looking for someone with proven results and is happy to set and meet own performance goals.