Born on 16 September, 1965, in Belgorod.
In 1987, graduated with honors from the Faculty of Economics and Organization of Aircraft Production of the Moscow Ordzhonikidze Aviation Institute of the Order of Lenin and the Order of the October Revolution.
In 1991, graduated from the Business School of the Moscow State Institute of International Relations of the Russian Ministry of Foreign Affairs/
From 1992 to 2001, adviser to general director, deputy head of division, head of division and department of JSCB Eurofinance.
From 2001 to 2007, deputy head of department, head of Corporate Finance Department, director of the Investment Operations and Services Department of the Investment Block of JSC Bank for Foreign Trade (Vneshtorgbank).
From 2007 to 2011, head of the Corporate Finance Department of the Investment Banking Directorate, director of the industry Department of the State Corporation Bank for Development and Foreign Economic Affairs (Vnesheconombank).
From 2011 to 2013, deputy chairman of the State Corporation Bank for Development and Foreign Economic Affairs (Vnesheconombank).
From 2013 to 2016, first deputy chairman of Vnesheconombank - Member of the Management Board.
From 2016 to 2019, general director of JSC RT-Finance.
Mr. Sapelin has been Deputy Chairman of Federal Environmental, Industrial and Nuclear Supervision Service since September 2019.