I applied online. The process took 3 weeks. I interviewed at Citadel
Difficult interview
Application
I applied through university. The process took 2 weeks. I interviewed at Citadel in Sept 2022
Interview
two phone screens. some interviewers were nice and others were more strict, lots of interesting math and research discussed. got asked a flurry of technicals, ramping up in difficulty each time, and even some open ended questions where they explicitly said there is no interview-tractable solution and just wanted to hear my ideas for an approach
Interview questions [1]
Question 1
How do you generate a 1/4 probability using just coin flips? 1/3 probability? 1/pi probability?
HR phone call, tech phone call, then on site visit.
No food or breaks provided, pretty exhausting by the end when you meet with the manager who I would never speak highly about.
Interview questions [1]
Question 1
Algorithms, data structures and SQL on whiteboard
About 6 hours of 1:1 technical interviews with 5+ people in various domains (networking, database, programming, hardware).
A few phone interviews followed by technical chat with team member. Asked about past projects specifically, and followed by some questions that require a lot of working experiences to answer.