Serbian programmer for Dominion?
https://twitter.com/re5igam/status/1330018291289612290?s=21
More details about this guy at this link. After about 30 posts, it appears all of the comments from Jess are completed, however, click on the "See Replies" link as she continues her story with about 15 more posts - this is where it gets particularly interesting.
The last few posts ties in info from LC, missing profiles from linkedIn, Serbian developers, and the possible identity of Guccifer 2.0. I know there is controversy surround LC, but this part seems interesting.
https://mobile.twitter.com/jessiprincey/status/1329525675666051073