Oleg Usachev@mastacampSoftware EngineerFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencemastacamp has not updated employment details yet.Educationmastacamp has not updated education details yet.LinksLinkedinhttps://www.linkedin.com/in/olegreal Skillsmastacamp has not updated skills details yet.