Kazhegeldin Akezhan Magzhanovchich was born on March 27, 1952 in the village of Georgievka, Semipalatinsk region, KazSSR.
Wife – Kazhegeldina (Bykova) Natalya Nikolaevna. Children: daughter Diana, son Magzhan.
Graduated from the Semipalatinsk Pedagogical Institute. N. K. Krupskaya. For two years he served in the Soviet Army, in the KGB Directorate for the Semipalatinsk region (1974-1978).
In 1989 he graduated from the Alma-Ata Institute of National Economy with a degree in economics.
From 1987 to 1989 he was a student of the training courses for the leadership of the Higher School of the KGB of the USSR. F. E. Dzerzhinsky.
He began his career as a concrete worker. He was a teacher and head teacher of a secondary school.
- 1979-1984 – Instructor, Deputy Head, Head of the Department of the Kalinin District Party Committee of the city of Semipalatinsk;
- 1985-1987 – Chairman of the Kirov District Executive Committee of the city of Semipalatinsk.
- 1987-1989 – Representative of the "Sozidatel" cooperative in Moscow.
- 1989-1992 – Director of the Semipalatinsk plant for the industrial processing of building and decorative facing stone.
- 1990 – General Director of JSC "Toman".
- 1990-1992 – General Director of FPG Semey.
- 1991-1993 – Deputy Chairman of the Semipalatinsk Regional Executive Committee, Head of the Regional Administration.
- From December 1993 to October 1994 – First Deputy Prime Minister of the Republic of Kazakhstan.
- From October 1994 to October 1997 – Prime Minister of the Republic of Kazakhstan.
- From March to October 1998 – Freelance Adviser to the President of the Republic of Kazakhstan.
Also held positions: Chairman of the Council of Entrepreneurs under the President of the Republic of Kazakhstan and President of the Union of Industrialists and Entrepreneurs of Kazakhstan.
In 1998 he was a candidate for the presidency of the Republic of Kazakhstan.
He was the chairman of the Republican People's Party of Kazakhstan, later a member of the political council of the United Democratic Party.