Requires the ability to frequently walk to employee work areas and other work areas; Requires the ability to push, pull, carry, and lift up to 50 lbs; Requires close vision, distant vision, and the ability to adjust focus; Requires the ability to work in a work environment where there is moderate to extreme noise; Requires the ability to focus in a highly charged and noisy environment; Requires the ability to work in extreme outdoor temperatures of hot and cold; Must be able to sit and stand for long periods of time; Must be able to routinely climb stairs and operate elevators while securing the post; Repetitive use of hands; Use of sight, including viewing computer monitors or camera monitors for long periods of time; Use of sound, including occasional conditions of high levels of noise; Requires extensive use of keyboard involving repetitive motions with fingers, sitting for prolonged periods of time, and extensive use of the telephones/radios and face-to-face communication that requires accurate perception of speech as well as talking and hearing. LANGUAGE SKILLS: Ability to clearly read, write, and speak English; Ability to read, analyze, and interpret important security related documents; Ability to respond to common inquiries or complaints from clients, employees, and management team.