Carnegie Robotics Software Engineer interview questions

Process took ~3 weeks, included a phone screen with an internal recruiter, followed by an hour long technical interview with an engineer. It involved relatively standard leetcode problems and technical questions. Ghosted after the technical interview

The interview process is quite long. There is a recruiter screening call, followed by a technical screening interview, then a meeting with a hiring manager. After that, if you are selected they schedule you for an onsite there is in-person onsite in their office. The onsite was 9:00 AM to 5:00 PM and included a presentation. Generally, I liked the company and most of the people I interviewed with. Some were typical nerdy people that were slightly socially awkward. They told me after 3 days that I did not get the job. Most of the process was fine until it came to getting travel expenses reimbursed. I emailed the recruiter all the information she asked for. I waited 6 weeks and did not receive the reimbursement. I emailed the recruiter again and she did not respond to my emails. I waited 2 more weeks and then I emailed HR and the recruiter. At this point, she responded immediately and said she had entered my info multiple times and does not know why I did not receive the check. I received the reimbursement after a week or so. The recruiter was responsive when I was a possible candidate. Once I was not, she ghosted me and acted shady. This was not professional. Watch out for that.