Grow Social Media Profile on Instagram & Facebook

I am currently launching a new business and need someone to grow and manage my Social Media profile on Instagram and Facebook. I have set up pages on both platforms however need someone who understands how to grow an authentic following for my business. I have an existing website and plan to build a social media profile to send traffic to the website.
My aim is to build a following of >500 people to start.
I have photos and videos to assist in the creation.