Sergey has been with Yandex for more than 7 years, leading a team in search and serving as Chief Operating Officer at Yandex Q. Together with his team, Sergey has launched. It continues to develop the summary retelling service in Browser and 300.ya.ru. He is a lecturer at the Higher School of Economics and supervisor of the data analytics shift at Sirius. Sergey spends his free time sailing a yacht.