Poland welcomes them:

1. Any Belarusian can get humanitarian visa without priori job offer or any serious requirement that allow to enter and work up to a year.

2. Meantime if one of your grandparent got Polish origin, you can go straight to get pernament residency. Polish equivalent of USA green card. Given history this situations are common.

3. The alternative path is to get work permit. Super easy for IT. It took my company 1.5-3 months at total cost 3000 pln including fancy legal advisor (790 usd).