Walter Sierra@retupmocSoftware Engineer at PerficientFollow BadgesProblem SolvingDays of CodeSql Certificationsretupmoc has not earned any certificates yet. Work Experienceretupmoc has not updated employment details yet.EducationUniversidad Cooperativa de ColombiaLinksLinkedinhttps://co.linkedin.com/in/jowasiPortfoliohttp://www.zynoa.net Skillsretupmoc has not updated skills details yet.