I applied in-person. The process took 2 weeks. I interviewed at IBM (San Jose, CA) in Jul 2016
Interview
After making an appointment via email, I went there for an onsite interview.
Three people interviewed me, and asked me some engineering question, as well as introduce yourself and what I had done before, working experience.
The boss showed me around the company.
First round was a case interview and final round was a behavioral interview with a more senior member of the team. Each interview was 45 minutes with one member from the team.
There was only 1 round of interview. Heard from recruiter 1 month after submitted application. Interview was 1 hour and did not seem structured at all; it went over a mix of technical and behavioral topics.
First stage of CV application, followed by an in-person assessment centre, then final interview with hiring manager in person in Southbank London office. Many assessment centres were running throughout 2017 when i applied.