Constantinos Kalfarentzos@spathenianSenior Data Scientist at wappierFollow BadgesProblem SolvingCPPJavaPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork Experiencespathenian has not updated employment details yet.EducationPrinceton University, PrincetonLinksspathenian has not updated links details yet. Skillsspathenian has not updated skills details yet.