Arkadiusz Stachowiak@_4r3k_Y4miPolandFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experience_4r3k_ has not updated employment details yet.Education_4r3k_ has not updated education details yet.