MasTec - - Responsibilities: Operate jobsite equipment safely, such as mobile cranes, bulldozers, front end loaders, backhoes, excavators, trenchers, and related construction equipment; Perform service, safety checks, and minor repairs on machines, and check oil and fluids; Inspect work area to ensure it has been staked/located prior to digging; Train, guide, or oversee work of lower graded operators and laborers when needed; Load trucks in a safe and accident-free manner