switchman
noun
switch·man ˈswich-mən 
: one who attends a switch (as in a railroad yard)
Example Sentences
Recent Examples on the Web Tokyo Station still has a plaque marking the spot where then-Prime Minister Takashi Hara was fatally stabbed on Nov. 4, 1921, by a railway switchman who objected to the government’s policies. 
WSJ, 8 July 2022 The switchman he was initially accused of killing actually survived, Boyles said. Washington Post, 10 Jan. 2020 Five years later, John Brown was accused of severely injuring a switchman on an Illinois Central Railroad train. Washington Post, 10 Jan. 2020 Weeks, a clerk at phone company Southern Bell, applied for an open job as a switchman. Bryce Covert, Cosmopolitan, 9 Aug. 2017 Coach Williams’s longtime man Friday, Wayne Walden, a former academic counselor, played switchman, steering basketball players to these classes. Michael Powell, New York Times, 31 Mar. 2017
WSJ, 8 July 2022 The switchman he was initially accused of killing actually survived, Boyles said. Washington Post, 10 Jan. 2020 Five years later, John Brown was accused of severely injuring a switchman on an Illinois Central Railroad train. Washington Post, 10 Jan. 2020 Weeks, a clerk at phone company Southern Bell, applied for an open job as a switchman. Bryce Covert, Cosmopolitan, 9 Aug. 2017 Coach Williams’s longtime man Friday, Wayne Walden, a former academic counselor, played switchman, steering basketball players to these classes. Michael Powell, New York Times, 31 Mar. 2017 Word History
First Known Use
1843, in the meaning defined above