Physical requirements include but are not limited to walking and standing for long durations; walking up and down ladders and storage tank stairways; negotiating uneven surfaces; crawling, stooping, and carrying, pushing or pulling a minimum of 50 pounds on level and uneven ground, walkways and stairways; kneeling, bending of torso and legs, holding one or both arms overhead for long durations, hand dexterity, full movement of head and extremities (hands, arms, legs, fingers, feet, etc.), acceptable hearing, etc. Prior maintenance or operations experience must include being knowledgeable in chemical process manufacturing, troubleshooting & repair of various electrical and pneumatic instrumentation, instrument calibration, tank level gauging, liquid loading/unloading, vapor collection/combustor operation plant safety rules & regulations.