I applied through a recruiter. The process took 3 weeks. I interviewed at GLG (New York, NY) in Oct 2018
Interview
Simple phone screen with basic questions on your skills, experience and some SQL or architectural questions. There was no technical exam or interview (which gives you an idea what kind of people they have hired before). Then the final interview was onsite with a group of other Software Engineers. The group seemed less skilled or experienced. They were looking for a cultural fit rather than a technically-fit candidate. If you are a typical 9-5 worker or just doing this as a job, then you'll fit in just fine. They don't like it when you're passionate about this profession. They think that you'll be out of place or get bored quickly in their environment. It's definitely a place for the older and expired engineers.
The process took 3 days. I interviewed at GLG (New York, NY) in Aug 2008
Interview
A phone Interview followed by a code review enclosed with three programming problems, The final interview consisted of five hours. About 2 hours was spent taking their assessments followed by the formal interview. The assessments included a one hour logic assessment, a 12-minute timed test used to assess problem-solving ability, and a brief untimed survey.