He currently plays for Hafnarfjordur Women, wearing the number 7 shirt. At the international level, he represents Bermuda Women. He plays primarily as a Forward.

In the FIFA Women's World Cup qualification(CONCACAF) 2026 season, nia christopher scored 1 goals and provided 0 assists across 3 appearances, averaging 0.3 goals per game with 10 shots attempted and 4 on target.