Content Writer Needed for new website design projects, blogs and articles

My website is www.onthemarkdigital.com. We are a creative agency in the San Francisco Area. We are looking for someone who can develop seo content for our company and develop content for our clients. We would need you to integrate keywords, create niche specific content and help with developing written content for social media channels. We need someone who can post to blogs and write content for our client's website projects.