The process took 2 weeks. I interviewed at Optiver (Chicago, IL) in July 2024
Interview
After the OA, there was a behavioral phone screen with a recruiter that lasted < 20 minutes. Afterwards a technical interview on codepair with a problem involving implementing a basic datastructure.
Interview questions [1]
Question 1
How can you implement a queue? Follow up is to actually build an array based queue.
The interview process began with a rigorous online assessment designed to test technical proficiency. It focused on core engineering principles and problem-solving skills, providing a challenging yet straightforward initial evaluation stage.
Coding + tech knowledge screen + puzzle round.
Behavioral (recruiter round).
Then 4-5 successive coding/system design rounds, followed by a final behavioral interview round with a tech lead + recruiter.
Technical OA mixed with random games and knowledge test about a variety of topics into a behavioural interview where they ask you a few questions about the role, your motivations and interests.