Vargas began officiating in the
Bolivian Primera División in 2008, refereeing his first match on 17 August 2008 between
Jorge Wilstermann and
Guabirá. In 2012, Vargas became
FIFA listed. On 11 June 2015, Vargas officiated his first senior international match, a
friendly between
Brazil and
Honduras. He officiated his first competitive international on 17 November 2015, a
World Cup qualification match between
Venezuela and
Ecuador. Vargas made his refereeing debut in the
Copa Libertadores on 18 February 2016, officiating a
second stage match between Mexican club
Deportivo Toluca and Brazilian club
Grêmio. Later that year, Vargas was selected as an official for the
Copa América Centenario, where he officiated a
Group B match between Ecuador and
Haiti on 12 June 2016. In 2017, Vargas was selected as a referee for the
2017 FIFA U-17 World Cup in India, where he officiated three matches. On 30 April 2018, Vargas was selected by FIFA as one of the
video assistant referees for the
2018 FIFA World Cup in Russia, the first
FIFA World Cup to use the technology. Vargas was appointed as the third assistant VAR in his first World Cup match between
Argentina and
Iceland in
Group D. Vargas was also selected for the
2021 Copa América in Brazil, but did not officiate any match. ==References==