Sergey Kalitin@sergey_kalitinPrincipal Software Engineer at QuestFollow BadgesProblem SolvingCPP CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencesergey_kalitin has not updated employment details yet.Educationsergey_kalitin has not updated education details yet.LinksLinkedinhttp://www.linkedin.com/in/sergey-kalitinGithubhttps://github.com/skalitinPortfoliohttp://www.linkedin.com/in/sergey-kalitin Skillssergey_kalitin has not updated skills details yet.