Early career Born in
São João, Pernambuco, Mariano graduated with
Guarani's youth setup. He made his first team – and
Série A – debut on 20 November 2004, coming on as a late
substitute in a 2–0 away win against
Palmeiras. In December 2006 Mariano left
Bugre, and signed for
Ipatinga. In May of the following year he had his rights purchased by
Tombense, being immediately loaned to
Cruzeiro until December 2008. Despite appearing in 18 games, Mariano was released by Cruzeiro, and subsequently returned to Ipatinga. On 2 July 2008, he moved to cross-town rivals
Atlético Mineiro, on loan until the end of the year.
Fluminense In 2009 Mariano joined
Fluminense, on loan. He scored his first professional goal on 24 May, but in a 4–1 home loss against
Santos, and finished his first season at the club with 20 appearances and two goals. An important unit for
Flu during his spell, Mariano was bought outright on 5 January 2010, and continued to appear regularly over the course of two campaigns. In 2010, after scoring a career-best three goals, he was elected the tournament's best right back, as his side was also crowned champions.
Bordeaux On 29 December 2011, Mariano signed a -year contract with French
Ligue 1 club
Girondins de Bordeaux. He made his debut for the club on 14 January 2012, playing the full 90 minutes in a 2–1 home win against
Valenciennes. Mariano scored his first goal for the club on 6 January 2013, netting a
last-minute winner in a 3–2 away win against
Châteauroux, for
the season's
Coupe de France. His first league goal came on 21 April, in a 2–2 draw at
Sochaux-Montbéliard.
Les Girondins won the cup final on 31 May, with Mariano playing the full 90 minutes of the 3–2 victory against
Évian Thonon Gaillard and receiving the first yellow card for a foul on
Daniel Wass.
Sevilla On 17 July 2015,
Sevilla FC reached an agreement with Bordeaux for the transfer of Mariano, with the player signing a three-year deal. He made his debut on 11 August in the
UEFA Super Cup, coming on in the 80th minute for
Kévin Gameiro in a
5–4 extra-time loss to fellow Spaniards
Barcelona in
Tbilisi. Mariano made ten more European appearances as the
Andalusians went on to win the
UEFA Europa League – scoring his sole goal to cap off a 5–2 aggregate win over
Shakhtar Donetsk in the semi-finals – including the entirety of the 3–1 victory over
Liverpool in the
final.
Galatasaray On 17 July 2017, Mariano signed a three-year deal at
Galatasaray for a fee of up to €4.5 million with an annual wage of €2.3 million. He was encouraged to make the move by
Cláudio Taffarel, former Brazil international goalkeeper who played for the
Istanbul-based club. On 14 August, he and compatriot defender
Maicon made their debuts in the
Süper Lig in a 4–1 home win over
Kayserispor. He made 26 total appearances as his club won the title in his
first season, and scored twice including a 20-metre strike to open a 2–0 win over
İstanbul Başakşehir at the
Türk Telekom Stadium on 15 April 2018.
Return to Atlético Mineiro On 29 July 2020, Mariano joined
Atlético Mineiro on a free transfer, returning to the club twelve years after his first spell and reuniting with his former coach at Sevilla
Jorge Sampaoli.
América Mineiro In February 11 2025, Mariano joined
América Mineiro. ==International career==