Social media posting person

I'm looking for an experienced social media posting person to keep my social media accounts up-to-date. Specifically I need someone to post one post per day to my Instagram account. My posts should target ideas and topics relevant to my brand, though I am open to suggestions. The successful candidate should be knowledgeable about a wide range of topics and be able to create visually stimulating posts. An eye for design and a passion for all things social media will be advantageous.