Hyperloop One Design Engineer interview questions

I applied through an internal referral and I was scheduled a phone interview with HR. That conversation went well, typical get to know you type questions. It took her two weeks to get back to me about scheduling a technical interview, and only after I followed up with her. The technical phone interview took place within the next week. This interview started off as a discussion of things on my resume, in which he scrutinized every word, but that's not totally unexpected. Then he drew a tangent based on something on my resume and started asking for thrust equations and aerodynamic equations, even though my resume was entirely structures related experience and I was applying for a structures position. Aside from the questions being difficult, the interviewer seemed very uninvolved and not very personable. The phone call left me with a bad impression and I knew I wasn't getting a call back.

The process started with the online application where I was asked to answer a few technical questions. I didn't hear from anyone after filling the application so contacted one of the HR people who asked me to submit the application again. She got back to me within minutes of me completing the application and scheduled a phone call. It was a generic conversation - about my experience, what I am looking for in the role, about Hyperloop one, and the position. The HR lady told me that she'll discuss my profile with the hiring manager and get back to me soon, which of course never happened. Followed up, no reply. Few days letter, I got an automated email that my application has been rejected. Definitely disappointed! I understand there must be a huge pool of candidates but I don't think the HR is having a half hour long conversation with every one of them. If you're talking to a candidate and rejecting him/her, at least care for the person a little bit. A direct email would have been much appreciated rather than an automated bot email. Further, how about sharing the profile with the hiring manager first before scheduling a call? If my experience is not enough for the position, it'd save a lot of time for the candidate as well as the HR people by not scheduling a call at the first place.