Sergey Sidorov@sergeyisFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencesergeyis has not updated employment details yet.Educationsergeyis has not updated education details yet.LinksLinkedinhttps://www.linkedin.com/in/sergey-ivanovich-sidorov/Portfoliohttps://github.com/SergeyIS Skillssergeyis has not updated skills details yet.