Mladen Penev@mpenev13InternBulgariaFollow BadgesProblem SolvingJavaPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillCertificate: C# (Basic)VerifiedskillWork Experiencempenev13 has not updated employment details yet.Educationmpenev13 has not updated education details yet.