Note: Jobs with the Safety-Sensitive designation are those that include tasks or duties that the employer reasonably believes could affect the safety and health of the employee performing the task or others such as operating a vehicle, operating equipment, operating machinery or power tools, repairing/maintaining the operation of any vehicle/equipment, the handling/disposal/transport of hazardous materials, or the handling/treatment/disposal of potentially flammable/combustible materials. Senior Estimators are knowledgeable regarding cost for all work elements including mechanical and electrical systems and prepare conceptual estimates, general conditions, and logistics plans that require minimal review by senior staff.