ATSSs may be required to lift and/or carry objects weighing up to 50 pounds; climb stairs/ladders up to 100 feet; be able to bend or stoop for extended periods; work in diverse environmental conditions (outside/extreme weather); work rotating shifts, weekends and/or holidays; possess a valid drivers license and possibly travel away from home up to 50% of the time. ATSS has full maintenance and operational responsibility for multiple disciplines, systems and services: Environmental: Lighted Navigational Aids Systems, Industrial Engine Generators, Industrial Heating, Ventilation, and Air-Conditioning Systems, Industrial Power Sources/Power-Conditioning Systems, Central Control Monitoring System, and Industrial Electronic Controls Systems.