Test conductor was an occupation held by a Starfleet officer at Starfleet Command's Fleet Operations Center, Sol Sector.
In January 2155, D. Rooney, R. Rayburn, B. Raineri, and V. Chakarian worked as test conductors. The occupation and the officers' names were listed on directory placards. (ENT: "Demons", directories)
Test conductor was a reference to NASA and Launch Control Center terminology.