I applied online. The process took 5 months. I interviewed at INEOS (Grangemouth, Scotland)
Interview
Professional and friendly representatives from both engineering and human resources. Slight element of good cop bad cop but not unsettling really. Quite a slow process from start to finish but a worthwhile experience. Turnaround times for communication were a little slow, but it's a very large company attracting the attention of many applicants no doubt.