''Quote from bearcats1980:
My advice would be to go to the exchange websites (CME, Eurex) and find a list of the member firms. Eliminate the firms that are purely FCMs (although very few probably are), and pursue the rest of the firms on the list, asking for a job starting at the bottom. If you don't personally know someone, thats the way in.
5k + a series 7 is all you need to join a prop firm. There are plenty of honest well-reputable firms. do a search and read reviews in the past.