This position must be available to work a variety of shifts including days, evenings, nights, weekends, holidays, and odd and unusual hours or called in on days off to respond to emergencies, working outdoors in all types of weather conditions. Essential physical functions include the ability to sit, stand, walk, lift, carry, push, and pull; climb, kneel, bend, reach, twist, crouch, crawl, and balance; and use fine motor skills, visual acuity, hearing, and verbal communication.