Youth, college and amateur Maganto spent five seasons in the
Getafe youth system. Maganto was offered a contract to play for Getafe's B team but instead elected to move to the United States to play football on a scholarship at
Iona College. In his four seasons with the Gaels, he made a total of 71 appearances and tallied 27 goals and 14 assists. He also played in the
Premier Development League with
Reading United, making a total of 9 appearances and tallied 2 goals.
Professional LA Galaxy On 15 January 2015, Maganto was selected 21st overall in the
2015 MLS SuperDraft by the
LA Galaxy. He signed a professional contract with the club two months later. On 22 March, Maganto made his professional debut with
USL affiliate club
LA Galaxy II in a 0–0 draw against
Real Monarchs SLC. On 19 April, Maganto made another appearance with
LA Galaxy II against
Austin Aztex FC that ended in a 2–1 victory for the Galaxy. On 2 May 2015, Maganto made his debut for the first team, starting on the left side of midfield, against
Colorado Rapids. Maganto ended his debut early when he was substituted off in the 72nd minute for goal scorer
Alan Gordon as the Galaxy completed the game with a 1–1 draw. On 28 May, Magnato played the full 90 minutes for the first time in the home match against
Real Salt Lake that ended in a 1–0 win for the Galaxy. Maganto scored a one-touch goal, his first for the Galaxy, in an away game against
New England Revolution that ended in a 2–2 draw on 31 May. He was waived by
LA Galaxy on 29 February 2016.
Hajduk Split Maganto joined Croatian side
Hajduk Split on trial in mid-June 2016, eventually signing with the club on 26 July 2016. After 9 league appearances, of which two were in the starting line-up, Maganto was released by Hajduk on 7 January 2017. ==Career statistics==