CETS, WEISS TECH HOUSE and WARE administrative assistant

Hi there,
This is for all current or previous Penn students. Does anyone know anything about the above mentioned student jobs and how competitive they are? I applied to all of them and have an interview with the Ware house coordinator coming up but I have yet to hear back from CETS (been almost a week now) and I am wondering if that’s because I am not being considered. I think the CETS computer consultant position is my top choice. P.S. How does one work in the admissions department, I haven’t yet seen any job postings. Any input is appreciated. Thank you