@tessanijssenUnited StatesFollow BadgesProblem SolvingJavaRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Ruby (Basic)VerifiedskillCertificate: Ruby (Intermediate)VerifiedskillWork Experiencetessanijssen has not updated employment details yet.Educationtessanijssen has not updated education details yet.