College and amateur Roldan attended
El Rancho High School in
Pico Rivera, California. He played soccer for The Dons helping them to the playoffs all four years and winning a state championship. With his time with The Dons, he earned first-team all-league three times, and was named league MVP in after his senior season. Roldan spent his college career at the
Seattle University, the cross-town rivals of the
University of Washington, where his brother
Cristian played. In his four seasons with the Redhawks, Roldan made a total of 82 appearances and tallied 18 goals and 17 assists. Roldan also played in the
National Premier Soccer League for
OSA FC.
Professional in 2023. On January 19, 2018, Roldan was selected 22nd overall in the
2018 MLS SuperDraft by
Seattle Sounders FC. He signed with the club in February 2018. Alex assisted his brother Cristian in his first-ever MLS career start against
Sporting Kansas City; they became the fifth set of brothers in MLS history to earn a goal/assist together. They also became the seventh pair of brothers in MLS history, including the first for the Sounders, to start together in a league match. Roldan was primarily a reserve midfielder for two seasons; He was re-signed by the Sounders on February 17, 2020, following a switch to right-back. Roldan played three matches during the shortened regular season and replaced
Kelvin Leerdam during the
MLS Cup Playoffs as the Sounders made it to a second consecutive
MLS Cup final. In 2025, Roldan played a key role in the Sounders’ cup-winning run in the Leagues Cup, scoring one goal and adding two assists in the final, against Inter Miami, and being named Man of the Match. ==International career==