BAE Systems Technical Delivery Graduate interview questions

Started out with a typical online application, which required a cover letter as well. After this, got given a briefing via the telephone about the role, this wasn't a phone interview. I then got invited to the first interview which was one on one, competency based with a programming based exercise to finish. After this, I got invited to the second interview which was very similar to the first where I had to prepare a 20 minute presentation on a complex problem. There were some competency and puzzles to solve in this one.

Applied directly online, with a CV and cover letter. They replied within a week or two with an invite to interview at their Guildford office. This was one hour with a single interviewer and was mostly technical questions, going into detail about things on my CV. I didn't hear back for a couple of weeks, so followed up with an email and within a couple of days I'd been invited to a second interview. This was with two interviewers, lasting two hours and included a 20 minute presentation about "a complex problem". The questions covered my motivation for joining them, my career interests, the content of my CV, and a logic puzzle. All interviewers were friendly and helpful, and I felt the interviews went well. After just over a week, I received a phone call to inform me that I would not receive an offer.