I've interviewed for and been interviewed by companies large and small. We all know software engineer job interviews suck. But it's hard on the other side of the table too.
One of the better places I worked for had a lightweight process of one phone screen and a four hour on-site. The company also prepared offers before the on-site interview round.
When you finished interviewing, you got a same-day yes or no answer, and if it was yes, you had the offer in your inbox within an hour.
What interview practices have you found effective?
... And by what metric?
Genuinely fun coding exercise split up over 4 interviews. The first was the initial interview, 3 of the onsite interviews were expanding on the same project, with PM and CTO interview mixed in. Got an offer same day.