Optiver Quant Trader Intern interview questions

Multiple Rounds, first was behavioral and second was technical. They first did a pretty lengthy behavioral and seemed pretty good, but then the technical was mainly all Fermi estimations and market making games.

Applied online. Received automatic OA. After completion got invited to behavioral interview, received invite to technical interview immediately after. Did 2 technical interviews and final technical + behavioral over Zoom. Nice people, fast communication. Afterwards received a phone call with rejection + feedback