Alexei Tretiakov is the Chief Sales and Business Development Officer of Yandex and has held this position since 2002. He is responsible for the sales strategy and the structure of the companyâ€™s commercial department. Previously, he led Yandexâ€™s maintenance and technical support service. Alexei joined Yandex in 2000 from CompTek International where he held a similar maintenance and technical support position. Before CompTek International, Alexei had been the Chief Technology Officer at various business units of Pioneer Group Russia. Alexei has degrees in physics and information technologies from Moscow Institute of Physics and Technology.