I applied online. The process took 4 days. I interviewed at Brightsparks (London, England) in June 2015
Interview
Group interview where they told you about the company and what kind of work you'll be doing. Informed you about the payroll system and how to book jobs. Very easy interview, more of a meeting rather than an interview. Almost everyone at the interview got an offer.
informal group interview where they play you videos demonstrating how perform skills and explaining the company rules. Ask a few questions but not directed at any one in the group specifically.