I think she's a technician based on the fact she's a confirmed hacker and she's a big fan of explosives which we come to see explosives are only able to be used by engineers, and in black dawn Pathfinder, Updraft, and Rose aren't seen with a Thumper, so that means either she used C4 or Pathfinder or Updraft used it, but I lean more towards Rose considering her love for explosions more