What is 'Travel Nurse' in French?

a nurse is "un infirmier" (masc.) or "une infirmière" (fem.)
People looking for temporary positions are called "remplaçant" (masc.) or "remplaçante" (fem.)
Traveling nurses (those in the profession who take on positions for short-term assignments) are called in French "un infirmier remplaçant / une infirmière remplaçante".