I applied online. The process took 3 months. I interviewed at Cadbury (Birmingham, England)
Interview
1) Online application form (competency based) 2) verbal and non verbal reasoning tests online 3) panel interview (2 engineers) competency based - I didn't get past the interview. Took a while for them to get back to me; I had to email them after the tests because they hadn't replied in almost 2 months.