How long to wait after interview before moving on?

I've waited up to 2-3 weeks, but there were some external circumstances that required consideration (needed to wait until the end of my role at current job before I could start the transition process). I know it is man, and my advice is to fight the nerves with more applications and networking. Whenever I think I wont get a desired position is when I network the hardest, send out the most emails, and usually end up getting something else to give me that false sense of job security. All jokes aside, in your situation I would say 10 days or 7 business days should be fine, no risk if you wait that long. Odds are they still have a fair amount of interviews to get through, idk though because with an EB firm they probably don't have as many as a MM or BB. Could be just a slower HR process due to being a smaller firm. Not to beat a dead horse too much, but I really recommend looking at other alternatives just to build a strong backup plan. Im sure you'll be fine, so try not to let the stress build.