Sergey Makarenko@sergiykoSoftware Engineer at FacebookFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencesergiyko has not updated employment details yet.Educationsergiyko has not updated education details yet.LinksLinkedinhttp://N/APortfoliohttp://null Skillssergiyko has not updated skills details yet.