rollerman

\\ˈrōlə(r)mən\ noun (plural rollermen)

: one who tends a rolling machine or performs a rolling action: as

a. : braker

b. : jackman

c. : a calender man who makes imitation leather

d. : a mine worker who keeps in repair the pulleys over which haulageway cables pass

e. : an auto worker who runs the motors of finished cars to check their performance, to detect unusual noises, to test parts subject to vibration, and to check the operation of gages

f. : leverman