I applied through an employee referral. The process took 3 months. I interviewed at Baker Hughes (London, England) in Apr 2018
Interview
Stage 1) CV + Cover Letter
3 weeks later, invitation to Video Interview
Stage 2) Video Interview- 3 Questions
4 weeks later- invitation to Assessment Centre
2 1/2 weeks to prepare
Stage 3) Assessment Centre- 4 1:1 Interviews, Presentation to assessors and candidates, Group Exercise, Numerical Test