A professional who tends machine that smooths and presses seams of shoe parts, such as counters, quarters, and joints of uppers by following methods. Responsibilities include:

• (1) Positions part under pounder or roller and guides part while machine pounds or rolls seams flat and smooth.
• (2) Positions part over or under preheated form and depresses pedal that lowers head of machine over part, pressing part to smooth seam.
• (3) Positions part on anvil under power hammer and depresses pedal that raises anvil and starts reciprocating hammer, flattening, and smoothing seam.
• May soften parts, using water-soaked sponge.
• May be designated according to type of machine operated as power-hammer operator; seam-press operator; or according to part of shoe smoothed as heel-seam rubber; quarter-lining smoother; vamp presser.