Review specifications, drawings, etc. to determine scope of work required contents of estimate; Prepare estimates by calculating complete takeoff of scope of work, material, outside services and sub-contractors; Review and incorporate historical data into a number of resources and man-hours estimates; Estimate extras, change orders, and discovery work items; Maintain files of working documents and backup estimate figures; Use client Enterprise Resource Planning (ERP) systems to identify upcoming installations, maintenance, and repairs; Estimate scope of work in terms of direct craft labor hours and duration; Preform material take-offs for repair or replace-in-kind work; Determine resource and skill requirements for scope of work; Document expectations for resource utilization and timing in client ERP system; Determine options for scope of work and present scenarios of compatible work packages or combinations of similar scope to the client; Document change orders request for deviations on drawings, changes in the field conditions, or engineering busts; Preform job-walks and collaboratively with respective discipline Subject Matter Experts to develop job steps (activities), craft breakdown and man-hours required; Assists with planning/scheduling effort for major plant turn-around and equipment overhauls; Support maintenance with all I&E documentation. reaching in all directions, handling and manipulating objects and materials; coordinating the movements of eyes, hands and fingers to operate tools and equipment; lifting from ground level, waist level, and/or overhead; carrying objects, tools, equipment, etc.