His real name was Yang Chou, which he hadn't used since the Thousand Day War. Famously ugly, he had been with STS since the beginning. He had a deep-seated work ethic that saw him override pain suppression drugs to assist with the extreme circumstances of the Stunnel incident. Finally his boss forcibly placed him in the equivalent of a medical coma to ensure she had at least one member of Special Maintenance around to help her pick up the pieces.
He spent years customising his inspection/repair drones to a point where dumb AI was capable of replicating a version of his unique personality; each was decorated with the face of a different dog breed. (PROSE: Transit)