Social Media Manager, creator needed for fundraising project

I am in need of a social media presence behind my fundraising project, to keep it connected on social media platforms and to keep the interest and tell my story as more people become aware. I need the social media manager to deal with posts that will come in, reply to messages, repost photos when required, and push the crowdfunding element. Twitter would be good to start with and instagram, suggestions are welcome. Project will last for 3 months