Social Media Marketing of my iOS App leading to app download

This is a very simple job. I have a ride sharing app for US market for which I need someone to do social media marketing. He/She will - Download the app and go through how it works (ask question as much as possible) [login to view URL]!/id996412154?ls=1&mt=8 - Write a small pitch that will be used to market the app on social media - Will post in all the social media platform (Facebook, Twitter, Instagram, LinkedIn to be specific) - Should have big social network in US (as app is for US market) Thank you.