Andrew Kovalenko is a software developer, team leader, and blogger. He is a member of Jaybird Group, the web and mobile development firm in the United States/Ukraine. He has worked there since the beginning of the company and now has the position of team leader. His work there includes overseeing and implementing projects in a wide variety of technologies, with an emphasis on JavaScript, NodeJS, HTML5, and Cordova (PhoneGap). He leads several development groups that produced products for call centers, marketing companies, real estate agencies, telecommunication companies, healthcare, and many others. Recently he has been focused on learning mobile development in detail. As a result, he started the BodyMotivator project – a mobile fitness application. He is a believer in the future of JavaScript as a generic development language. When he isn't coding, Andrey likes to hang out with his family and exercise at the local cross-fit gym. He is a fitness enthusiast, and he is trying to put all his software development efforts into making life healthier.