It was a nice and simple talk with the recruiter of the department, but they didn't want to hire internationals so didn't move forward with the rest of the application process
It was overall a good process.
interview was quite hard, many stages were involved from aptitude test to tech interview in this but learnt a a lot from this experience
I applied through an employee referral. I interviewed at Mercer in Nov 2017
Interview
3 rounds - 1st round was with the recruiter, 2nd with a manager and 3rd with the head of the technology wing. Last round was focused on brainteasers. Overall, it was straightforward and everyone was very nice.