Viacheslav Barbolin@barbeerFollow BadgesProblem SolvingJavaSql CertificationsCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencebarbeer has not updated employment details yet.Educationbarbeer has not updated education details yet.Linksbarbeer has not updated links details yet. Skillsbarbeer has not updated skills details yet.