Looking for top-notch developer to improve our portal's security and performance

Our site is fully developed and it needs improvement. We need a top-notch developer to cleanse the code in order to improve the overall security and speed performance. We would prefer someone who has experience related to the management or development of heavy-traffic, world-class sites before.

This is an ongoing project and we hope to work with you on a long term basis. Please pm me if you're interested