Born on November 19, 1962.
In 1985, graduated from Moscow State University named after M. V. Lomonosov in the speciality of economist-cybernetician. In 1988, he defended the academic degree of the Candidate of Economic Sciences.
S. Mynbayev started his career as a professor at the Almaty Institute of National Economy. Up till 1995, he worked on various positions in business entities.
In 1995, he occupied the position of Deputy Minister of Finance of the Republic of Kazakhstan, concurrently holding the position of Treasury Chief at the Ministry of Finance of the Republic of Kazakhstan. In 1997, he worked as First Deputy Minister of Finance of the Republic of Kazakhstan.
In the period from 1997 to 1999, he held the following posts: Minister of Finance of the Republic of Kazakhstan, Deputy Chief of the Presidential Executive Office of the Republic of Kazakhstan.
In 1999, he was appointed to the post of Minister of Agriculture of the Republic of Kazakhstan and remained on this position till 2001.
In 2001, he continued the career in financial institutions as President of the Development Bank of Kazakhstan CJSC. From 2002 to 2003, he was Director General of the Caspian Industrial and Financial Group LLC.
From 2003 to 2006, he worked as Deputy Prime-Minister of the Republic of Kazakhstan, Minister of Industry and Commerce of the Republic of Kazakhstan.
In 2006, he headed the Samruk Kazakhstan Holding for State Assets Management JSC as Chairman of the Management Board, and held this position till 2007.
In 2007, pursuant to Decree of the President of the Republic of Kazakhstan, he was appointed as Minister of Energy and Mineral Resources of the Republic of Kazakhstan, and in 2010 – as Minister of Oil and Gas of the Republic of Kazakhstan.
Since 2013 and till the present day, S. Mynbayev has been holding the position of Chairman of the Management Board of KazMunayGas National Company JSC.