It's a little different though. Ship Engineers require unlock and a task to be fulfilled. With Odyssey, they just need the unlock. And what happens when you do that task for the next engineer isn't clear yet. For example, one seems to be offering to show me the location of Jude according to the image... But he's unlockable already so I wonder how it works.I should clarify. The engineers are following the same path as the Horizon ones: they do tell you what they want for an unlock, and then once unlocked will tell you what they need to introduce you to the next engineer.
It's something I was working on but bugs are slowing me down.