Early career Campos rose through the youth ranks at
Guayaquil club
Barcelona Sporting Club. However, he never played for the senior. He instead moved to Europe to play for
Belgian club
Gent in 2002. After a year and a half at the club in which he played 6 official games, he return to Ecuador to play for
Quito based club
Aucas. After one season with the club, he moved to cross-town rivals
LDU Quito.
LDU Quito 2005-2009 Since joining Liga, he has become a key figure in the squad earning starting roles in important matches. He was part of the squad that won the two Ecuadorian titles (2005 Apertura and 2007). Campos participated in LDU Quito's unforgettable
2008 Copa Libertadores campaign where he became instrumental as a defender for the club, stopping the likes of
Salvador Cabanas and
Thiago Neves. He played an astounding 1st leg game against
Fluminense, scoring the 3rd goal in their 4–2 home victory, and though he missed a penalty in the game-ending penalty shoot-out, he won the
2008 Copa Libertadores. He also won the
2009 Recopa Sudamericana against
Internacional de Porto Alegre. His final title came against past finals rivals Fluminense, defeating them in aggregate 5–4, winning the
2009 Copa Sudamericana. Thus has become an unforgettable icon for the club's history taking LDU Quito to become Ecuador's best football club of the decade 2000–10.
Atlético Mineiro 2010-11 After five successful years at
LDU Quito, Campos signed with Brazilian Club
Atlético Mineiro on December 20, 2009.
Deportivo Quito 2011 Season On 20 January 2011, Campos signed for
Deportivo Quito on loan from Atlético Mineiro until the end of the season. Jairo Campos once again became an important factor into an Ecuadorian club. Their most impressive defender, Campos scored 3 goals and played a great
2011 Campeonato Ecuatoriano de Fútbol Serie A which led to qualifying for the finals of the season. Campos led the club's defense, shutting out
Emelec, winning both legs 1-0 and thus crowned themselves 2011 Serie A champions.
Barcelona SC 2012 Season In 2012 season, Campos signed a three-year contract with
Barcelona SC. After being teamed up with
Ecuador national football team mate
Frickson Erazo, the pairing led to
Barcelona Sporting Club reaching their first finals in Ecuadorian football in 15 years. His ever impressive defensive displays has led to interests of clubs from England and France, though Campos has stated he wants to be league champions before he leaves the club. On November 28, Campos became 2012 Serie A champion after SD Quito defeated Emelec 2–0, which helped Barcelona secure their first Ecuadorian league title since 1997, their 14th title in their history.
2013 Season ==International career==