Social Media Marketing and Search Engine Optimization

Looking for an experienced Social Media marketing and SEO person to assist us on a couple of websites. We are looking for someone with experience that can make sure that we have content going out regularly and that our websites are getting the promotion they need to grow and develop.

Experience with: Facebook, Pinterest, Twitter, Google+ important. Having worked with Reddit or Stumbleupon helpful.

Please provide your experience and specific work you've done. Samples of work done would be great.

Looking for someone at least half time and prefer someone that works some hours that are US business hours as well.