A professional who tends machine that flattens, shapes, and smooths leather insoles and outsoles. Responsibilities include:

• Turns handle to adjust holding device to fit shoe.
• Positions shoe on pin jack and against holding device.
• Starts machine that forces shoe against presser roller and moves roller back and forth over sole to flatten ridges, bulges, and nicks caused by other operations.
• May move levers to control motion of roller.