She is a member of the United States women's national baseball team which won a gold medal at the 2015 Pan American Games.

In 2018, Alvarez served as an assistant coach USA Baseball Women's National Team staff.

The following year Alvarez served as a coach with the Oakland Athletics at Major League Baseball Spring Training, a position she still holds.

For her work at the helm, Alvarez became the first woman to be named the organization’s Rod Dedeaux Coach of the Year.

Under her direction, Team USA finished its tournament with a perfect 7-0 record and the program’s first gold medal since the Toronto 2015 Pan Am Games.