You gave us basically zero information about yourself and zero specifics about what you want to know, and are confused that nobody answered you?
As a generic answer, your best bet would be to get hired by a Western consulting firm in a Western country, and get transferred to Poland earning Western wages. Otherwise, there isn't much point. Better opportunities are abundant elsewhere. As for showing up in Poland and looking for a job after you arrive, forget about it. That is a recipe for disaster. Especially in the consulting field where, if you plan to stay independent, it takes years of hard, back-breaking work and eating ramen noodles to build up a reputation.
Poland is not at all a friendly job market for those who don't know exactly what they are doing. Do your research and make a specific and realistic plan that is not over-optimistic. Remember that anything is going to take twice as long and cost twice as much as you expect it to, and in Poland, I would double that again to be on the safe side.
Polish Citizen Spouse - chances for a job in Poland
Is it easy to find a decent job for spouse of a Polish citizen (with permission to live and work in Poland)?
I don't speak Polish, and am not an engineer either. Although, I have specific skills in non-financial consulting business (Bain, strategy&, Mckinsey and BCG). I would have chosen South Korea (my country) over Poland but my spouse has to be with his single mother in Poland. What is scope for me in Poland?