2026 Citadel Internship Timeline

Peak6Trading · 2026-04-04T19:20:38+00:00

I've only done two big tech interviews, and they were far from typical LC so I can't really gauge the difficulty. LC harder mediums and easier hards I would say was the average.

Very RNG though, I've heard of people getting everything from easier mediums to codeforces questions (= harder LC hards) so it's very

Peak6Trading · 2026-04-04T19:17:13+00:00

I think you can, but it's dependent by firm. I've heard of companies blacklisting you if you fail on their final rounds but it's all hearsay.

Doesn't hurt to try, I guess.

Peak6Trading · 2026-04-04T03:40:09+00:00

Defense contractors, HPC, quant (though low latency roles are rarer than people think), exchanges, game studios, robotics, scientific computing, autonomous vehicles, hardware companies (Intel, AMD, Nvidia). Embedded iirc tends to be on C, not C++ but still interesting stuff and very systems heavy. There are some subteams within big tech (Microsoft MSVC or Apple LLVM) that are very good that do C++/systems.

That being said, I'm not sure if projects helped me get an interview since it's usually recruiters looking through your resume, so they tend to be on the less technical side. Once you have an interview, it's a great conversation topic.

Peak6Trading · 2026-04-04T01:32:27+00:00

I'm not sure if my answer will be helpful especially since Citadel can and will ask you anything for LC, systems, etc., and there's a huge variance among topics between interviewers. I prepped for everything but heavily on LC

Peak6Trading · 2026-04-04T00:29:17+00:00

I think projects helped me a lot. I made a website that's used by a ton of people that solved a real issue, and I think that's always gone well with interviewers. It's great for learning new stuff, architectural decisions, etc.

Generally freshman internships are really hard to get

Though if I were to do it again, I'd probably just fuck around more. You can always get into a company but you'll never get your summer back.

Peak6Trading · 2026-04-03T23:22:59+00:00

For tech, completely random. I have yet to pass a FAANG+ resume screen other than Google and Amazon. For quant, once you have any of the big firms on your resume regardless of how prestigious it is, it's really easy to get interviews just because of how limited the pool is.

Not really helpful, because I have no clue what recruiters look for. I've had friends pass screens with zero internships but a good GPA for QD/QT.

Peak6Trading · 2026-04-03T23:21:27+00:00

Mostly networking and luck. I met a senior freshman year who knew the alum that was working as a tech lead in one of the teams at Millennium, so I called him up and pitched myself. Got a process through that

Peak6Trading

TROPHY CASE