In 1956-1960 Vyacheslav served in Soviet Army and worked as assistant engine driver at Uralsk shipbuilding yard. In 1961 Vyacheslav Boguslayev moved to Zaporizhzhia, where he worked as a mechanic. In the same year he entered Zaporizhzhia Technical Institute and graduated in 1965, specializing in air engines with qualification of mechanic engineer.
1966 - Vyacheslav Boguslayev started working at Zaporizhzhia Engine Plant: before 1969 as construction engineer, and from
1969 till 1973 as Head of the Department
1973 - 1988 Vyacheslav Boguslayev worked as Director of Volochisk Engineering Plant (Khmelnytskyi Oblast)
1988 - 1994 - Director General of "Motorobudіvnik", Zaporizhzhia
1994 - 2006 - Chairman of the Board, General Director of JSC "Motor Sich" (ex-"Motorobudіvnik")
since 2006 - Chairman of the Board of Directors, Honorary President of JSC "Motor Sich"
2001 - 2004 - Member of the Guardian Council of the National Fund of Social Protection of Mothers and Children "Ukraine to Children"
since 2001 Vyacheslav Boguslayev has been the President of the International Charity Fund "Dnipro-Sich"
Member of the National Council on Philanthropy, established in 2007 at the initiative of President Viktor Yushchenko and led by his daughter Vitalina.
In 2006-2007 Vyacheslav Boguslayev was elected as People's Deputy of Ukraine to the 5th Verkhovna Rada, from the Party of Regions (No 5 on the list). At that time he was working as the Head of the Subcommittee on Legislative National Defense, the defense industry complex supplies, military and military-technical cooperation of the Verkhovna Rada Committee on National Security and Defence. He was as well member of the Party of Regions.
In November 2007 Vyacheslav Boguslayev became the MP of the 6th Verkhovna Rada, elected from the Party of Regions (No. 11 in the list). He was Deputy Head of the Verkhovna Rada Committee on National Security and Defence Policy.
Deputy Chairman of the Verkhovna Rada of Ukraine Committee on National Security and Defense
Member of the Interparliamentary Commission on Cooperation between The Verkhovna Rada of Ukraine and the Federal Assembly of Russia
In the 2014 parliamentary election Boguslayev was again re-elected after again winning a constituency seat in Zaporizhzhia; this time as a non-partisan candidate. In the 2019 Ukrainian parliamentary election he lost his seat in this constituency.
Vyacheslav Boguslayev is married with one son. His wife Elena Boguslayeva (born 1946) is now retired, worked as a teacher). His son Oleksandr Vyacheslavovich (born 2 August 1978) was a chief engineer at JSC "Motor Sich", Deputy of Zaporizhzhia City Council.