Nursultan Nazarbayev is the Chairman of the Security Council of Kazakhstan who served as the first President of Kazakhstan, in office from 24 April 1990until his resignation on 19 March 2019. He was named First Secretary of the Communist Party of the Kazakh SSR in 1989 and was elected as the nation's first president following its independence from the Soviet Union. He holds the title "Leader of the Nation" 

The Parliament of Kazakhstan, composed of Communist Party legislators who had yet to stand in an election since the country gained independence, adopted the constitution on 28 January 1993.

An April 1995 referendum extended Nazarbayev's term until 2000. He was re-elected in January 1999 and again in December 2005. The Organization for Security and Cooperation in Europe criticised the last presidential election as falling short of international democratic standard. On 18 May 2007, the Parliament of Kazakhstan approved a constitutional amendment which allowed the incumbent president—himself—to run for an unlimited number of five-year terms. This amendment applied specifically and only to Nazarbayev: the original constitution's prescribed maximum of two five-year terms will still apply to all future presidents of Kazakhstan.

Nazarbayev appointed Altynbek Sarsenbayev, who at the time served as the Minister of Culture, Information and Concord, the Secretary of the Kazakh Security Council, replacing Marat Tazhin, on 4 May 2001. Tazhin became the Chairman of the National Security Committee, replacing Alnur Musayev. Musayev became the head of the Presidential Security Service.

In 1994, Nazarbayev suggested relocating the capital city from Almaty to Astana, and the official changeover of the capital happened on 10 December 1997.

On 4 December 2005, new presidential elections were held and President Nazarbayev won by an overwhelming majority of 91.15% (from a total of 6,871,571 eligible participating voters). Nazarbayev was sworn in for another seven-year term on 11 January 2006. 2009, former UK Cabinet Minister Jonathan Aitken released a biography of the Kazakh leader entitled Nazarbayev and the Making of Kazakhstan. The book takes a generally pro-Nazarbayev stance, asserting in the introduction that he is mostly responsible for the success of modern Kazakhstan.

In order to make education affordable, on 13 January 2009, he introduced educational grant "Orken" for the talented youth of Kazakhstan. This decree was amended on 23 September 2016.

In December 2012, Nazarbayev outlined a forward-looking national strategy called the Kazakhstan 2050 Strategy.