It wouldn’t surprise me if it was ExodusPoint, but I’m not sure how one could make that connection from the article.
ExodusPoint had an OMS 3 years ago, so the part in the story about starting trading makes me suspect it’s either an OMS for a new asset class, or a replacement of an earlier system.
Unless the OP joined a portfolio team, and the OMS he’s talking about was to connect that teams strategy to the internal firm wide OMS. I did that for my pod, and I can see a Portfolio Manager making a decision like this.
Most likely it was a quant in a pod. OMS could be loosely defined here as well or obscured to not dox themself too much. However EVE trade sounds very specific, I don't know what this means, EVE online trading?