I worked at J Sainsbury part-time
Managers were friendly, and I felt part of the team despite only being a Christmas temp. Was given someone to shadow for the first day which was helpful, and good salary for what the job is.
If you don't like stacking shelves, the job isn't for you!
I applied through a staffing agency. The process took 1 day. I interviewed at J Sainsbury (London, England) in May 2015.
I went through to the job via a recruiter, and after a week or so was called into a face to face interview where I talked to two managers (hring manager and one other) and had to do a very simple SAS test, which was explaining some written code.
Recruiter got back to me with an offer 3-4 days later.
The process for contractor hires is very simple and straight forward.