Piotr Grabowski@kajocinaFollow BadgesProblem SolvingPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencekajocina has not updated employment details yet.Educationkajocina has not updated education details yet.Linkskajocina has not updated links details yet. Skillskajocina has not updated skills details yet.