Oleksandr Porunov@porunovJava backend developer / Big Data / DevOpsUnited StatesFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Advanced)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experienceporunov has not updated employment details yet.Educationporunov has not updated education details yet.