[2] In September 2018, she became the first woman hired as a full-time NCAA Division I coach, when she was promoted by Dartmouth, after briefly working as an intern for the team.

[3][4] Brownson played for the D.C. Divas in the Women's Football Alliance (WFA) from 2010 to 2017 as a free safety and running back, winning two championships.

[7] While attending George Mason University, Brownson tried out for the D.C. Divas in the Women's Football Alliance (WFA) at age 19.

[2][3] Brownson was an assistant football coach at her alma mater, Mount Vernon High School, for three seasons, beginning at age 21.

[12] On January 10, 2025, it was announced that Brownson would be leaving the Browns to join USA Football as the senior director of high performance & national team operations.