CMDR Tenescio is the son of parents from Hutton Orbital. His father was a crewmember of a mining ship in the system, while his mother worked on board a Federation ship as a medical technician. Tenescio initially graduated from post-secondary education with a degree in medieval and classical literature. After that, he pursued graduate education in the same field. However, Tenescio found that life down a gravity well or in a station just wouldn't do, and he went on to get his pilot's license.

CMDR Tenescio was a graduate of the flight training in Dromi system, under the pilot's federation. After graduating, he ran extensive deep core mining operations out of the Vanus, a Python-model mining vessel.

He currently has a small residence and office on Jameson Memorial station in Shinrarta Dezhra, after having been promoted to elite in trade. Until recently, he was presumed dead or missing, after losing contact during a long-haul voyage to the Formidine Rift.