You can apply at any time for an Associate Systems Engineer position in the US, but they typically only do two interview days each year, sometimes only one. They typically occur around October-November and April-May. Applicants for the Sales Associates Program must be less than 2 years out of college as well, so if you're beyond that, talk to a recruiter about other opportunities available. Leading up to the interview day, there are typically two steps to trim down the applicant pool: a short 2-minute video submission on a given topic, and a virtual video interview with someone. These may be reversed depending on when/where you apply. The video interview is typically with someone who has gone through the training program before, and it's fairly informal. About 20-30 applicants are invited to the interview days on-site at either North Carolina or San Jose if you're applying for a US position, and typically last from about 9am to 4-5pm. A couple activities to expect are a written technical skills test, a behavioral interview with 1-3 interviewers, a role-playing sales interview, and a presentation on a topic they give you in advance. If you make it through all of this and are extended an offer, you should hear back in a week or two. Overall I felt the interview was a good test of skills needed for the job/training program. If you enjoy the interview process, you will probably enjoy the program. If you felt the interviews or questions were silly, this probably isn't a good job for you.