S.V. Plotnikov was born on July 22, 1960, in Bolshenarym village, Bolshenarym district of East Kazakhstan region. He is Russian. He got a university degree at Saratov Polytechnic Institute in 1982. He has a degree of the Doctor of technical sciences. Military rank - Lieutenant Colonel. He is a member of the Senate of the Parliament of the Republic of Kazakhstan of the fourth, fifth and sixth convocations. He was awarded the “Parasat” and “Qurmet” orders and the Order of the Commonwealth of the IPA CIS, and eight medals. He is an Honorary Citizen of Katon-Karagaisky and Glubokovsky districts of East Kazakhstan region.
After graduating from school in 1977, he entered Saratov Polytechnic Institute. From1982, he worked as a shift master, senior foreman, deputy shop manager, chief technologist, head of material and technical supply and finished product marketing department at Vostokmashzavod JSC named after the 50th anniversary of the USSR. From 1984 to 1986, he worked in elected positions as the secretary of the Komsomol committee of Vostokmashzavod, second secretary of the Ust-Kamenogorsk city committee of the Komsomol of Kazakhstan, secretary of the East Kazakhstan regional committee of the Komsomol of Kazakhstan.
1998-2003 - Head of the Department of Energy, Industry, Transport, Telecommunications and Foreign Economic Relations of East Kazakhstan Region,
2003-2007 - Akim of Glubokovsky District.
Over the next two years, he held the post of the deputy akim of East Kazakhstan region. In 2008, he was elected to the Senate of the Parliament of the Republic of Kazakhstan of the fourth convocation from East Kazakhstan region.
May 30, 2014 to September 4, 2017 – Head of the Senate Committee on Agrarian Issues, Nature Management and Rural Development. He paid special attention to rural development, agro-industrial complex, and improvement of legislation in the field of environmental protection.
From September 4, 2017 - Member of the Senate Committee on Finance and Budget. His responsibility included drafting, management of the working group and submission of draft laws in the field of banking and securities market to the Senate for consideration.
He was awarded the medals “Qazaqstan Respublikasynyn Tauelsizdіgіne 20 zhyl”, “10 zhyl Astana” and “Tynga 50 zhyl” for his merit to the state on behalf of the President of the Republic of Kazakhstan. He was also awarded the medals “20th anniversary of the IPA CIS”, “25th anniversary of the IPA CIS” and “For Strengthening Parliamentary Cooperation” for his merit in developing inter-parliamentary cooperation among the CIS countries. He was awarded the anniversary medals “Tengege 20 zhyl”, “Qazaqstan Halky Assambleyasyna 20 zhyl”.
As a member of the Standing Committee of the Interparliamentary Assembly of the Commonwealth of Independent States, he actively defends the interests of the Kazakhstan side. In addition, he is a member of the parliamentary cooperation groups “Republic of Kazakhstan - Russian Federation” and Asian Forum of Parliamentarians on Population and Development.