App Development for a Members only club

Hello! I'm looking to get an app developed for a members-only club that has a news feed, messaging within, an events calendar, and an investments portfolio. please check the Figma (https://www.figma.com/proto/xH1n8iG9Ckl77D3lTEones/Leaders-for-India-Organization?page-id=2%3A458&node-id=67%3A4701&viewport=591%2C125%2C0.15&scaling=min-zoom&starting-point-node-id=67%3A4701) + dev doc attached. Also, need the admin panel to be able add events + members list database and other features.