Career
Youth and amateur
Born in Miami, Florida, Mendonca who is also a citizen of Brazil, played youth soccer in Florida before moving to Brazil and joining Flamengo's U-14 team. Two years later he joined Vasco da Gama's U-17 setup, with which he played for over a year. In 2019, Vasco loaned Mendonca to Trindade.
Mendonca returned to Miami to play with USL League Two’s FC Miami City in 2021.
Minnesota United FC 2
On March 23, 2022, Mendonca signed his first professional contract with MLS Next Pro side Minnesota United FC 2 ahead of their 2022 season. Mendonca quickly established himself as an important player in the midfield for MNUFC2, appearing in 23 matches and recorded 3 assists in his first professional campaign.
North Texas SC
On March 8, 2024, Mendonca joined North Texas SC as a free agent. On March 15, 2024, Mendonca made his debut with North Texas SC, appearing as starter in the opening match of the season, a 0–0 draw against Whitecaps FC 2. In his one season in Texas, Mendonca helped the club capture the MLS Next Pro Cup. He finished the season appearing in 22 league matches and 3 playoff matches.
Chattanooga FC
On January 7, 2025, Mendonca joined Chattanooga FC to a one-year contract. On March 8, 2025, Mendonca made his debut with the club, appearing as a starter in a 2–1 victory over Inter Miami CF II. Mendonca ended his 2025 campaign appearing in 25 regular season matches and 2 in the U.S. Open Cup.
New York Cosmos
On December 17, 2025, Mendonca joined USL League One side New York Cosmos ahead of their return to professional competition. Mendonca made his debut for the club on March 14, 2026, appearing as a late match substitute in a 1-3 loss to Hearts of Pine. On March 25, 2026, Mendonca scored his first goal as a professional with Cosmos in a 3-2 loss to Greenville Triumph. On May 15, 2026, Mendonca scored and 81st minute equalizing goal in a 3-2 comeback victory over Westchester SC in a USL Cup match.
