I applied through a staffing agency. The process took 1 week. I interviewed at Filtronic (Leeds, England)
Interview
The interview was extremely technical. They expect you to have a high indepth knowledge of all types of filters. In the interview they will show you some of their filters and ask you technical questions on their part. They will drill very deep into your technical abilities. They don't much care about your previous work experience.
Interview questions [1]
Question 1
Showed me a filter and asked me what type of filter was it. Low pass band pass or band stop or high pass. Asked me to explain how that particular filter works. What each element does and why is it there