Sergey Zhvachkin was born on 20 January 1957 in the city of Molotov, Soviet Union, which is now known as Perm.

He was appointed as the general director of Kubangazprom, a subsidiary of Gazprom in 2004, but continued to serve on the Tomsk Duma.

[1] In 2012, Viktor Kress stepped down and was appointed to the Federation Council (Russia).

In accordance with the procedure at the time, the Legislative Duma of Tomsk presented three candidates to Russian President Dmitry Medvedev, including Zhvachkin, the Duma speaker Sergey Ilinykh and the rector of Tomsk Polytechnic University Petr S. Chubik.

[5] On 10 September 2017, Zhvachkin won a full term in the 2017 gubernatorial election with 60.58% of the vote.