I applied online. The process took 5 weeks. I interviewed at Jane Street (London, England) in Dec 2020
Interview
Very Enjoyable experience. Started with a written exercise completed in Excel. Then Telephone interview. Mainly based around theoretical estimation questions. Then live video interview with two members of the company. Was given material to read and was then asked questions about it and discussed scenarios relating to the material.
Interview questions [1]
Question 1
How many rubber bands are in a city of your choosing?