I applied online through their websites, received a link and did the knowledge test and some behaviour questions, got an online video interview invitation after a few weeks using HireVue.
I applied through college or university. The process took 4 weeks. I interviewed at WTW (Atlanta, GA) in Oct 2018
Interview
They sent a Hirevue to complete within 3 days then 4 on-site interviews and lunch following. Everyone is super nice and not too intimidating. They ask a lot of questions about excel and really just want to see how you think/act in situations.
I applied through college or university. The process took 2 weeks. I interviewed at WTW in Oct 2018
Interview
Selected for first round on campus interview where I met with a senior analyst and a consultant. They asked me various behavioral questions and a little bit technical. The two staffs were really nice and one of them was someone I had met before at a career fair.