Are their still Boatswains in the Navy?

I’ve been really interested in joining the Navy after I get out of High School so I can have funding for college, and I’ve reviewed a couple of different options. My friend was telling me about a job with the title of “Boatswain”, which he thinks I’d be perfect at. He failed to articulate on what a boatswain actually does, and he was in the Navy 30 years ago… So, here’s my question, do they still exist in the Navy, and what do they do. If not, is there a job similar to that?