[2] Warren spent two seasons with the USA Hockey National Team Development Program (USNTDP).

[5] In his freshman year he recorded six goals and five assists in 34 games and helped the Eagles win the Hockey East regular season championship.

During the first round of the 2022 Hockey East tournament against New Hampshire, he assisted on the game-winning overtime goal by Marc McLaughlin.

[12] On April 16, 2024, Warren signed a two-year, entry-level contract with the New York Islanders.

[16] Warren represented the United States at the 2019 IIHF World U18 Championships, where he served as alternate captain and recorded three assists in seven games and won a bronze medal.