The interview process was very lengthy and detailed.

The initial "high-level" interview was with the hiring manager.

Many technical interviews followed.

There were in-person and telephone interviews at all days and times. Many of the interviewers called me during off-hours (I'm assuming after their client site workday ended).

The questions were intense.

In the end, I received an offer, accepted, and entered their one-month product training program. After that, I was immediately put on client accounts.

Why do you think our product is better than a similar product from competitor XXX?

Of course, I already had my certification from XXX on their product...