This is a very senior position with a salary that often goes into the millions of dollars a year. Your main job as managing director is to find clients and close deals. You will be answerable to executives like the CFO, COO, or CEO, and will be in charge of sizeable teams including analysts, associates, VPs, etc.
To secure one of the few MD roles you must have an exemplary educational background as well as a very successful career as an investment banker. This deal also requires very strong communication and negotiation skills as you will be constantly communicating on behalf of your team to your superiors, and on behalf of your institution to clients. Here is a strong MD resume to model off of.