In 2002 Sergei graduated from the Faculty of Law of Lomonosov Moscow State University.
During eight years since 2004 he worked with M&A and capital markets in Moscow and London in the international law firm Clifford Chance, where he advanced to a councilor.
In 2012 Sergei became Vice-President at Summa Group. In 2014 as Executive Director he joined A1, the investment arm of Alfa Group, which he left to join Marathon Group in May 2017.