Bakytzhan Sagintayev was born on October 13, 1963 in Talas district of Zhambyl region.
He graduated from the Kazakh State University, candidate of economic sciences.
He began his career as a teacher in the political economy department of the Almaty Institute of National Economy.
In 1988–1992, he worked at the Kazakh State University and was promoted from position of assitant to assistant professor of the sociology department.
From 1992 to 1998, he run a business.
In 1998, he was appointed Deputy Governor of Zhambyl region.
In 1999–2002, he held the post of the Deputy Chairman of the Agency for Small Business Support, Deputy Chairman of the Agency for Regulation of Natural Monopolies, Competition Protection and Small Business Support of Kazakhstan.
In 2002–2004, he served as the First Deputy Chairman of the Agency for Regulation of Natural Monopolies and Competition Protection of Kazakhstan.
From 2004 to 2007, he chaired the Agency for Regulation of Natural Monopolies of Kazakhstan.
In 2007–2008, B. Sagintayev headed the Prime Minister’s Office of Kazakhstan.
On September 30, 2008, he was appointed Governor of Pavlodar region.
On January 20, 2012, he was appointed Minister of Economic Development and Trade of Kazakhstan.
On September 24, 2012, he became First Deputy Head of "Nur Otan" National Democratic Party.
On January 16, 2013, by the Decree of the President he was appointed First Deputy Prime Minister – Minister of Regional Development of Kazakhstan.
On November 6, 2013 the First Deputy Prime Minister - the Minister of Regional Development of Kazakhstan, dismissed and appointed as the First Deputy Prime minister according to the Decree of the Head of state.
B.Sagintayev was awarded with the Order of "Qurmet", "Parassat" and anniversary medals.