The trade name of shipwright dates to the days of sail; however, the modern proper name has been Hull Technician for as long as I've been in (almost 30 yrs). Remnants live on though. The trade badge for Hull Technicians is a set crossed axes - tools of the shipwright (but not so much the modern Hull Technician).
This sort of thing is common in the Navy. We still refer to the Marine Engineering folks as "stokers," even though no one has actually stoked a boiler since before WWII.