This is book 4 of the "Solar Clipper Trader Tales" series.

This note contains spoilers for the book.

Fourth of these; and seems to be the last that are out on Amazon.

Hey, what? Just graduated? Wow, we seem to have skipped the time at the Academy entirely. That's a surprise. But I suppose he can go back and fill that in later if he regrets it. It would be a completely different kind of story.

The blurb material suggests we've got antagonists this time, too. Ah, here we go; he's on his new ship, starting to meet the officers and crew, and it's clearly not very good. Haven't found the actual problem officer yet, from which I deduce it's the Captain (who hasn't appeared yet). Hmm; sexual harassment of officers as a way of life on board ship? (And crew of course.) Apparently Ish was chosen by the company, and may face hostility from the other male officers at least. And the second officer just answered his question about whether he should worry with "yes".

Wow; the story is actually about the antagonists, too. A sadistic 1st mate, a weak captain. Ish was in fact sent in by the owner to catalyze things, and he manages to get things to the point where the captain can be relieved (captains have a lot of protections in that world it seems). The strange rich man he met on the fast packet was in fact the owner, checking him out.

So, mostly Ish goes through the book doing what he usually does, improving things a bit here and there, turning everybodies lives upside down. At the end they lose the captain and first mate and 6 others who don't want to stick around, but get a good captain and first mate, and things are going to go much more reasonably it looks like.