Sebastian Slepowronski@CrowSebastianSenior Full-Stack EngineerPolandFollow BadgesProblem SolvingDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: CSS (Basic)VerifiedskillWork ExperienceCrowSebastian has not updated employment details yet.EducationCrowSebastian has not updated education details yet.