A ballet dancer is the person who might move "en pointe." This term refers to dancing on the tips of the toes, typically done by female dancers in classical ballet performances.
A person who moves 'en pointe' is usually a ballet dancer. It is a technique used in ballet where the dancer stands on the tips of their toes while performing steps and movements.
A ballet dancer might move 'en pointe'. This requires the dancer to stand on the tips of their toes in specially designed pointe shoes. En pointe is a difficult and advanced technique used in classical ballet.