I applied through an employee referral. The process took 3 months. I interviewed at Elixirr (New York, NY)
Interview
Two rounds of interviews, the first round was very informal, just a phone call with the recruiter. This was followed by a in person group interview either online or in the office. That lasted about 6 hours total.
I applied online. The process took 4 months. I interviewed at Elixirr (London, England) in Feb 2020
Interview
Sent my application in September 2019, they screened my CV early Feb and then sent out an invite for a gruelling assessment centre. People at the firm are very down to earth though.