Ability to work in a general office environment and on a work site with exposure to adverse weather conditions, fumes and /or air particulates, working in high precarious places, risk of electrical shock and moving mechanical parts, moderate noise levels, and working at heights, ability to wear personnel protective equipment, including hard hat, steel-toed footwear, eye and hearing protection when performing work functions. Ability to perform essential job functions, including but not limited to frequent standing, walking, sitting, speaking or hearing, typing and occasional reaching, stooping, kneeling, lifting and/or moving up to 20 pounds with or without reasonable accommodation Must be able to walk and stand on level and/or inclined, climb stairs, ramps, ladders and work stands.