No matter how far I thought to go back I would always have Ja-Inrosh onboard. He came aboard when the ship was commissioned in 2322, when he was a Lieutenant Commander and served as Second/Chief Operations Officer.
Commander Austin Harris, First Officer, Deep Space Nine (by FltCpt. Bossco)
8.01 - Darkest Before Dawn
(Chapter 8 added, 12/09/2015)