Deputy Chairman of the Gazprom Management Committee (from November 2006 to February 2019). At the beginning of his career, he served in the Leningrad KGB. And then in the secretariat of the mayor's office in St. Petersburg. Knew Putin from his service in the KGB.
Involved in corruption in PJSC Gazprom and subsidiaries. Participated in the formation of corrupt sources of income for Vladimir Putin and his closest associates.