it's hard and only giving you one week to do your homework (design challenge) which includes design , coating ,manufacturing, and assembly and you need to presented all ideas in 3-4hrs presentation at Cupertino onsite. the interview includes 4 cal alumni and also one hiring manager during the interviewing process Not really a good company with paid(below the average )and not worth to go for an interview. Sarcastic questions . And managers even are playing their phones during the interview, it's really nasty to see that disrespect thing.