I applied through university. The process took 1 week. I interviewed at Opto 22
Interview
The company website doesn't appear to have any internship opportunities posted. I gave my resume to a representative from Opto 22 at a school career fair and was contacted a few days later by the company for an initial phone screening with the VP. The phone screening consisted of two portions: behavioral/resume-related questions and then technical questions to gauge your level of understanding. The technical questions will be customized according to your resume. Most of the questions have a follow-up question as well. There are probably more interviews (potentially on-site) if you pass the phone screening, but I did not make it that far.
Interview questions [3]
Question 1
Of the projects listed on your resumes, which are you most proud of and why?
Follow-up: Describe a problem you have encountered while programming and what steps you took to resolve it.
The process took 4 weeks. I interviewed at Opto 22 (Temecula, CA)
Interview
The first step of the process involved a phone interview. This was pretty basic. I just detailed my project and work experience, skills, etc. It was scheduled to be around 1 hour but after 30 minutes the interviewer said I would move on for an on site interview.
The on site interview was from 11-4 pm. It consists of two interviews, a tour of the facility, lunch, and an exam. The two interviews vary widely depending on who is leading them. For one of them, I just reiterated my resume and answered a few basic coding questions. Another, was much more technical.
At the end, you are given a 26 page exam to do in an hour that covers everything from programming to hardware (resistors, capacitors, etc.). It was pretty grueling.
Interview questions [1]
Question 1
The exam at the end was extremely difficult. Use good time management skills.