I applied through college or university. I interviewed at National Instruments in Aug 2012
Interview
The process included an aptitude test followed by a group discussion and a personal interview. The aptitude test wasn't too difficult and was used for shortlisting. The group discussions were based on common topics while the interview was technical. Candidates shortlisted after the interview were required to go to Bangalore for the final selection.
I applied through college or university. The process took 1 week. I interviewed at National Instruments (Austin, TX) in Aug 2008
Interview
Behavioral/Technical on-campus, Behavioral/Technical on-site (NI). One historical interview (they just get your salary expectations). A technical presentation. It was a long day, but the difficulty was not that high.
I applied online. The process took 2 months. I interviewed at National Instruments
Interview
I applied for summer internship. Interview was on telephone and covered all the relevant points on my resume. Questions was asked based on the projects I did and my field of interest, like Pattern recognition and Image processing. Analog electronics was also covered. Questions were quite basic.