UT ID Card Required for Entry. The Undergraduate Career Expo is for current McCombs School of Business students seeking internships and full-time positions. The career expo is open to current McCombs School of Business students in the BBA, MBA, MPA, MSF, MSBA and MSTC programs from 12 p.m. to 5 p.m. It is open to all UT Austin students from 3 p.m. to 5 p.m. Companies attending. Required Attire: Business Professional (see the Business Attire Guide). Students not wearing business professional attire will not be permitted into the expo. See the Career Expo website for more information.