A post commander is a security professional who works for a variety of businesses or military services to ensure everyone is complying with company and building policies. In this career, your job duties involve evaluating security personnel performance, scheduling security personnel to ensure each shift has a guard, assisting emergency response crews, monitoring visitor entry, and reporting any safety concerns as needed. You stand and walk, often working outdoors through unfavorable weather conditions, so physical stamina is essential. You also answer guest and employee questions routinely, so customer service, communication, and leadership skills are vital for this career. Additional qualifications include at least a high school diploma and a valid guard license.