serviceman

noun, plural serv·ice·men [sur-vis-men, -muh n] /ˈsɜr vɪsˌmɛn, -mən/.

1. a member of the armed forces of a country.
2. a person whose occupation is to maintain or repair equipment: a television serviceman.

noun plural -men

1. Also called (feminine): servicewoman a person who serves in the armed services of a country
2. a man employed to service and maintain equipment

n.1899, from service (n.) + man (n.).