A claim for wages would only survive a bankruptcy discharge if the wages were owed for less than 180 days before the bankruptcy was filed. See 11 USC sec 507 for more information. Hope this perspective helps!
It appears that you might not have a way to collect due to the time gap. If you have a large judgment it might be worth the money to consult an attorney to see if there is a way you may collect. If he filed a Chapter 13, you can also file a proof of claim. Good luck.