About the Job. Infrared Fitness Studio - Fitness Sales Associates. HOTWORX, a 24-hour Infrared Fitness Studio, is looking for ambitious and motivated fitness sales associates to join our team. This is YOUR opportunity to be part of this groundbreaking, FIRST ever, innovative fitness concept coming to Corpus Christi Southside. HOTWORX is a virtually instructed exercise program created for users to experience the many benefits of infrared heat abso...