Instagram and LinkedIn growth

Hi, i need someone with experience in growing social media profiles. I have a LinkedIn, Facebook and Instagram account for my very small (startup) business and I need someone actively trying to grow my followers by engaging with hashtags and target audience.
Bonus if you can produce quality content and are skilled in generating leads for my sales consultancy and if you can produce quality blogs and know about SEO. Please let me have some examples of previous or current work.