It strikes me as a huge mistake for companies to have their recruiter who has little to no experience building software, ask technical questions to a candidate with years of experience building products. It sets up a scenario whereby the recruiter has to stick to a script, and the entire thing is mechanical and robotic. The only people qualified to dive into the details of "how would you do XYZ" questions are people who have done it before eg. the hiring manager, team members. The interviewer made comments that were rude and defensive; in scenarios where she didn't understand my answers or the format of my responses. This is unprofessional and frankly a disservice to the process, the company, and the interviewer.