Jonathan Kleinfeld@jjk2673Freelance Software EngineerFollow BadgesProblem Solving Certificationsjjk2673 has not earned any certificates yet. Work Experiencejjk2673 has not updated employment details yet.Educationjjk2673 has not updated education details yet.LinksLinkedinhttp://linkedin.com/in/jonathan-kleinfeld Skillsjjk2673 has not updated skills details yet.