Cadence Design Systems

4 rounds excluding HR discussion. 1st round on phone and 3 onsite. All of the interviewers were nice except for the last one. The last interviewer was rude and unprofessional. The last round of interview started with the statement that my resume is

Typical technical grill. Atypically hard technical questions. The interviewers had advanced degrees and 20+ years experience in the field. Everyone was very polite. Lunch was brought into the interview room, making the pressure relentless.

There were some questions on general EDA principles and your experiences on the resume.