Hacker @kosterzFollow BadgesProblem SolvingJavaPythonDays of JSSql Certificationskosterz has not earned any certificates yet. Work Experiencekosterz has not updated employment details yet.EducationRamkhamhaeng UniversityLinksPortfoliohttp://www.123rf.com/photo_13204571_resort.html/#kosterz Skillskosterz has not updated skills details yet.