How do I know what jobs my population wants?

[Kreddi]

Got 7 available jobs with 1 available specialist.
How do I know which branch this guy will accept work in?

[Nightskies]

The traits of the population do influence what this guy will do, but the RNG applies here as well. You will find weak pacifists becoming soldiers and repulsive militarists becoming priests. I'm not 100% on that specific example, but I have seen pops do jobs they really should not be doing. Even when another pop genetically designed to do that job is doing something they shouldn't be doing.

But more generally they will get a job they'll be more happy with. Erm, productive. I meant more productive with. Machines seem to have feelings about that too.

If you're asking if an unemployed specialist will accept a labor job, yes, he will eventually, and the same still applies. Rulers will fill out first, then specialists, then labor, if the new pop can do so. What specific job within those strata depends on your situation, your actions, and the pop's traits.

Did that explain it?

[Nightmyre]

The simplest answer is to just force it into whichever job you want it in.

You can use the arrows to control how many of an available job are actually available to be filled. Whether there is a pop in the job already or not is irrelevant. If you don't want any enforcers, just set the number of available enforcer jobs to zero, and anyone who was in them will find other employment if available.

Pops won't downgrade posts though. A specialist will not turn into a worker automatically. It takes a very long time unless you have the proper Tradition selected.

[Kreddi]

I didn't even realize there was a button to manage which jobs are available or not.
Not in the game currently, but I remember seeing something like this:

Clerk Jobs: 13/18

Does that mean I limited clerk jobs to 13, even though I had buildings supporting 18?

Also how do you guys manage housing issues when a planet has every building slot and district slot filled out?
I could delete some buildings and build new ones with houses, but that would put me in an unemployment crisis