I interviewed for a senior technical role, and the round with a Principal Engineer was highly unprofessional. The interviewer displayed a fragile ego and toxic communication, starting with condescending remarks about my introduction. They could not handle a differing technical POV, ridiculing my perspective with bizarre analogies. When I asked clarifying questions, they deflected. They ultimately made condescending remarks about my questions and rudely demanded I share my screen to Google the question because they felt disbelieved. Massive cultural red flag.