Long process, but very thorough.
1st phone conversation with a recruiter to discuss some aspects of your experience and the role you are applying. Then you'll meet with the Hiring Manager. If successful the next step is to meet to panel. In my case I met with 5 people (all individually).
I ended up having to chase the main recruiter who I was always in touch to arrange the interviews as they did not give me any updates after about 3 weeks.