It’s no secret that much of business is about who you know. Writing a resume is no different. If you worked with the president of a corporation at your last job, list that on your resume. If you reported directly to a powerful person, add that into your qualifications. This will show potential employers that you have the ability to work with best and brightest minds in the industry. It also shows that someone of great importance put their trust in you for an extended amount of time.