PayPal Senior Software Developer interview questions

i was techy, they focus on deep technical questions . the quality of questions were very good. interviewer was very good and having good knowledge of technical things. be prepared for paypal interview.

A friend who worked at Paypal forwarded my resume to their internal recruiter and she set-up a phone screen for me. The person called-up at the scheduled time and without bothering to introduce himself plunged right into asking me about my most recent project. Within 2-3 sentences he interrupted me and jumped to another section of my resume. Within 2-3 sentences of that he interrupted again and jumped to my education. I got the feeling that he was not really listening to me. I had taken a course in compilers several years ago and he then asked me to describe how to write a compiler. I mixed up a lexer and a parser in the first sentence and he got ticked off about that - rudely correcting me before I could correct myself. He then peppered me with questions that were absolutely irrelevant to the job I was applying for - example what is a fast-fourier transform and how is it used in signal processing? I was just taken aback at this question - I'm not a analog/digital processing electrical engineer nor do I play one on TV! The interviewer came across as having a huge superiority complex - essentially being rude and condescending throughout the interview. I narrated my experience to my friend and he confirmed that the person who interviewed has had several run-ins with his co-workers and management because of his attitude. Oh well.