My first thought when reading the blurb on your site was 'oh great... they're going to make a CTF where you have to participate in a team, and all other members

My first thought when reading the blurb on your site was 'oh great... they're going to make a CTF where you have to participate in a team, and all other members of your 'team' are actually AI programmed to be as distracting and abrasive as possible and you will have to work on a 25 year old PL/SQL system designed by a prima donna so you can show your ability to work in hostile environments.' I am sure that's not what you're doing, but that's what comes to mind when I hear 'real systems' and 'real challenges'...