I applied online. The process took 3 weeks. I interviewed at G-Research (London, England) in Jan 2021
Interview
Test followed by technical interviews. There’s a mixture of questions testing computer science theory, algorithms/data structures, and coding challenges focussed on OO principles. Be prepared for follow-up interviews focused on more in depth topics.
The interview process was thorough and well structured. It focused primarily on data structures and algorithms, and the level was broadly in line with what you would expect for a software engineering interview of this type. I cannot share specific details of the questions, but standard preparation in algorithms, data structures, problem solving, and coding under interview conditions should be sufficient. Overall, it felt rigorous but fair.
There were mostly algorithmic questions to be solved on a whiteboard. Then, after a lunch with a couple of the junior staff, the tell you whether you’re into the next round. There is also a test beforehand.
2-3 parts depending on team. Pretty in depth on topics. 2 coding rounds I believe. Interview process is fairly quick. It’s not a process that takes 3-4 weeks. 2 weeks max, 1 week if you’re really adamant.