St. Lawrence won the Eastern College Athletic Conference in her rookie NCAA season, where she scored 20 points in 38 games and was named to the ECAC All-Rookie Team. After missing the 2013–14 season due to injury, Boulier returned to the St. Lawrence lineup and was named team captain.[1]
In 2017, she signed with the Connecticut Whale of the NWHL.[2] After just one year with the Whale, she signed with the Minnesota Whitecaps, where she would win the Isobel Cup. be named a finalist for Defender of the Year and one of the Fans’ Three Stars of the Season in 2019.[3][4] She has been named to the NWHL All-Star Game three times.[5]
In September 2021, she announced that she had signed with the defending Isobel Cup champions, the Boston Pride.[6] She spent a single season in Boston, winning her second Isobel Cup, before returning to the Whitecaps.[7]
From 2016 to 2018, Boulier served as an assistant coach for the NCAA Division I Yale Bulldogs. During her time with the Whale, she also served as a coach with Chelsea Piers Connecticut.[10] In April 2020, she was named head coach for the Marshall School's girls' ice hockey team.[11]