Andrew Callahan@andrew_callahanFollow BadgesProblem SolvingDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork ExperienceLockheed MartinZenefitsBoeingWorkdayEducationLehigh Univervsity, Bethlehem•  2014LinksLinkedinhttp://www.linkedin.com/in/aecallahan/ Skillsandrew_callahan has not updated skills details yet.