Nikolay Konstantinov@NikolayKBulgariaFollowAboutEducationSofia University "St. Kliment Ohridski", Sofia BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork ExperienceNikolayK has not updated employment details yet.EducationSofia University "St. Kliment Ohridski", Sofia