He is a graduate of the Dynamo football school (Kyiv).

In 1993, Dynamo Kyiv loaned Vashchuk to CSK ZSU-Oriana Kyiv for several months.

After returning to Dynamo Kyiv in 2005, Vashchuk was constantly subjected to psychological pressure from Kyiv fans because of his transfer to Spartak Moscow.

In the second half of 2007, Dynamo Kyiv performed below its level in the Ukrainian championship and lost a lot of points. With the onset of the winter break in the championship, a "personnel purge" among the team's players was expected. However, the new head coach, Yuriy Semin, kept Vashchuk in the team, although he rarely played on the field. Semin noted the player's versatility and experience, and his hard work in training. Semin also played Vashchuk as a midfielder.

In May 2008, the management of Dynamo Kyiv announced that Vashchuk's contract, which was valid until August 2008, would most likely not be extended. In June, 33-year-old Vladyslav Vashchuk entered into negotiations and trained with Odesa-based Chornomorets, where he had previously played after returning to the Ukrainian league from Spartak Moscow. On 17 July 2008, he signed a contract with the Ukrainian Premier League debutant, Lviv, for six months with an option to extend for another six months. Vashchuk played for Lviv for only six months. Due to the economic crisis, the club's budget was cut, and Vashchuk refused to take a pay cut.

In February 2009, Vashchuk re-signed with Ukrainian Premier League club Chornomorets Odesa. Although Vashchuk had previously played for this club, during his absence, almost the entire Chornomorets squad changed, including the head coach. On 14 March, he took part in an official game for the first time - he came on as a substitute 15 minutes before the end of the match with the score 3-0 in favour of Chornomorets, playing in the holding midfield area.
Vashchuk in the Volyn squad

The fans who took part in the voting on the forum of the team's official website recognised 35-year-old Vashchuk as the club's best player in the 2009/10 season). However, at the end of the season, Chornomorets left the top flight. Vashchuk's contract with Chornomorets expired on 1 June 2010. Vashchuk did not want to play for Chornomorets in the first league, becoming a free agent. From 2010 to 2011, he played for Volyn. In early 2013, he announced his desire to play in a first league team. He played 64 matches in European competitions, scoring 4 goals.

He played for the national team of Ukraine from 1996 to 2007.

On 20 May 2023, Vladyslav Vashchuk joined the ranks of the National Guard of Ukraine.