On 13 June 2003, he was appointed State Secretary of Kazakhstan, a senior advisory role within the presidential administration. He served that position until he was dismissed on 9 March 2004. Tasmagambetov's administration prioritized social infrastructure by commissioning 11 new schools and seven kindergartens, alongside modernizing existing educational facilities. The healthcare system was also strengthened with the commencement of construction on eight medical facilities, including an emergency hospital, several polyclinics, and a perinatal center, enhancing the accessibility and quality of health services in Almaty. leading to violent unrest between local residents and municipal authorities. Additionally, the closure of the international music festival
Voice of Asia in 2006 sparked public criticism. Nevertheless, a 2016 opinion survey conducted by
NewTimes.kz indicated that a majority of Almaty residents—approximately 51%—approved of his policies and leadership.
Äkim of Astana (2008–2014) From 4 April 2008, he served as the akim of
Astana. While holding that post, Tasmagambetov was chosen to be the chairman of the Astana City Branch of
Nur Otan on 19 May 2008. Astana became the first place in the provision of housing to the population. The number of problem sites was reduced from 243 to two. In 2012–2013, two hospitals and two polyclinics were commissioned. The opera and ballet theater
Astana Opera and the Palace of Schoolchildren were built, while the construction of the cathedral mosque
Hazrat Sultan Mosque began. A locomotive plant, a plant for the production of reinforced concrete products, pipes made of polymer materials, and helicopter plant were commissioned and put into operation.
Defense and Deputy Minister (2014–2017) From 22 October 2014 to 12 September 2016, Tasmagambetov served as a
Minister of Defense under
Massimov.
Ambassador of Kazakhstan to Russia (2017–2019) On 3 February 2017, Tasmagambetov became an
Ambassador of Kazakhstan to Russia to where he presented his credentials to Russian President
Vladimir Putin on 16 March 2017. His sudden appointment to the position led to suspicions that Nazarbayev felt politically threatened by his ally, as the move rendered Tasmagambetov constitutionally prohibited from running for President. He served in the role until 18 December 2019, when by the decree of President
Kassym-Jomart Tokayev, Tasmagambetov was removed from his post, dismissed from public service and sent to a retirement pension.
Secretary General of CSTO (2023–present) On 1 January 2023, Tasmagambetov assumed office as
Secretary General of the CSTO, following his unanimous appointment by the CSTO Collective Security Council on 23 November 2022, replacing Belarusian
Stanislav Zas and making him the first Kazakhstani person to hold the title. During his tenure, Tasmagambetov has prioritized strengthening the CSTO's military potential and enhancing the organization's crisis response capabilities. In 2023, his leadership focused on improving decision-making procedures for the deployment of collective security forces and updating the legal frameworks governing military cooperation. In 2024, coinciding with Kazakhstan's chairmanship of the CSTO, Tasmagambetov outlined a set of key objectives: implementing decisions adopted at the November 2023 CSTO summit, bolstering the organization's rapid response mechanisms—particularly in light of the experience from the January 2022 unrest in Kazakhstan—and deepening partnerships with international organizations such as the
United Nations, the
CIS, and the
Shanghai Cooperation Organisation. == Awards ==