I don’t think that those listings are accurate. The Global website does not list all of those (globalind.com), and I can tell you they don’t have the resources for all of those positions unless they are acquiring a new fleet…which I highly doubt. I feel certain I would know if they needed that many personnel right now. There is a new vessel the Global 1200, the crewing is handled by Crowley though. They have the 1201 being built now, but still a ways until complete. As for other vessels, Global recently sold two of their DSVs to Triton, and the fleet is mainly barges and large construction vessels.
If you have any direct ?s, you may PM me…I might provide some insight should you be considering a position with them.