Posture: Frequent sitting and standing; occasional bending/stooping, pushing/pulling, and twisting Motion: Repetitive hand motions; frequent keyboarding and use of mouse; occasional reaching Lifting: Occasional light lifting and carrying (less than 15 pounds); occasional physical restraint of students to control behavior Environment: May work prolonged or irregular hours; work inside and outside (exposure to sun, heat, cold, and inclement weather), exposure to noise; occasional districtwide and statewide travel Mental Demands: Work with frequent interruptions; maintain emotional control under stress Supervisory Responsibilities Evaluation Work Environment 4 Assistant Principal - ACE Demonstration Schools Job Description. Coordinate operational support services such as transportation, custodial, grounds maintenance, security systems, building use and rental, and cafeteria to best meet campus needs and provide an orderly, safe, and secure environment.