Alexander Kalyuzhyy@alex_k_wFollow BadgesProblem SolvingJavaPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencealex_k_w has not updated employment details yet.Educationalex_k_w has not updated education details yet.Linksalex_k_w has not updated links details yet. Skillsalex_k_w has not updated skills details yet.