1. Claudinei Oliveira subsequently represented Jaboticabal, Nacional de Uberaba, Mamore, Araguari Atletico Clube, Central Brasileira Pinhalense, Caldense, Olimpia, Portuguesa Santista, Sao Bento, Remo, Tuna Luso, Nacional-SP and Ferroviaria, retiring with the latter in 2003.
Claudinei Oliveira began his managerial career as a coach at his first club Santos, joining the under-15 squad in 2009 and leading them to a Campeonato Paulista under-15 title.
Claudinei Oliveira went on to win both Campeonato Paulista in 2012 and Copa Sao Paulo de Futebol Junior in 2013; the latter came after a 29-year absence.
Claudinei Oliveira remained in charge of the main squad until the end of the season, leading the side to a seventh place overall.
On 3 September 2014, Claudinei Oliveira was appointed at the helm of Atletico Paranaense.
On 25 November 2015, Claudinei Oliveira returned to Parana for the ensuing season.
Claudinei Oliveira managed to achieve a top-tier promotion in his first season, but suffered immediate relegation in his second.
On 25 April 2018, Claudinei Oliveira replaced sacked Nelsinho Baptista at the helm of Sport Recife.
On 16 October 2018, Claudinei Oliveira resigned from Parana and moved to fellow first division strugglers Chapecoense.
On 17 February 2020, Claudinei Oliveira was appointed manager of Botafogo-SP, replacing sacked Wagner Lopes.
Claudinei Oliveira helped the club avoid relegation in the 2020 Campeonato Paulista, but resigned on 20 November after only five wins in 22 matches.
On 9 December 2020, Claudinei Oliveira returned to Avai in the place of Geninho.
Claudinei Oliveira again led the club to another promotion to the first division in 2021, but was sacked on 6 February 2022, after a poor start of the new campaign.
Claudinei Oliveira was named in charge of Operario Ferroviario on 20 March 2022, but was sacked exactly four months later.
On 1 December 2022, Claudinei Oliveira was appointed manager of Vila Nova in the second division.
Claudinei Oliveira was dismissed on 4 August 2023, after a poor run of form which took the club from the first to the seventh position, and returned to Chape five days later.
Claudinei Oliveira was dismissed on 27 April, after a poor start in the 2024 Serie B, and took over Londrina in the Serie C on 15 May.