I applied through an employee referral. The process took 4 weeks. I interviewed at Reaction Engines (Oxford, England) in Dec 2017
Interview
submission of a CV, Submission of a Cover Letter, Participate in a one-to-one face-to-face interview which took about 1.5hrs with multiple questions covering PM principles and applications and understanding of the core company disciplines. It was just with the programmes director and was very comfortable and relaxed.