Ho presentato la mia candidatura tramite un'agenzia di reclutamento personale. Ho sostenuto un colloquio presso Jane Street (Londra, Inghilterra) nel mese di dic 2025
Colloquio
1x screening call leetcode easy + 1x internal recuiter call + 1x onsite system design + 1x onsite leetcode medium~ish coding interview.
Overall it was a decent experience but I'll have to underline some points:
* One interviewer asked "You're originally from X?" this is considered discriminatory based on UK's Equality Act 2010.
* One of the interviewers couldn't quite read C++ which was a bit disappointing considering that I'm a C++ dev. I could have chosen the language accordingly.
* Asked to not to talk about the questions asked.
A- you don't get to do that without a contract,
B- It just helps friends of the employees to thrive on interviews.
* Onsite Interview taking whole day is costly (candidate has to take a day off) and tiring.
* There is a blanket policy of "not providing feed-back", which makes re-applying meaningless.
Domande di colloquio [1]
Domanda 1
System design interview: file system design
Coding exercise: An immutable tree structure being hashed and compared to a remote via an API efficiently
It was a very quick and painless process. Recruiter very responsive, kind interviewers. High implementation and difficult problems, so failed onsite after 3 interviews and a Question and Answer Session.
Ho sostenuto un colloquio presso Jane Street (Londra, Inghilterra)
Colloquio
Did not pass the initial coding round. I tried to explain my thought in details to the interviewer but failed to translate my thought into code. So far interviewer is very nice.
Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso Jane Street (New York, NY)
Colloquio
My experience interviewing at Jane Street was definitely challenging, but also surprisingly collaborative. Instead of focusing only on whether I could get the right answer quickly, the interviewers were much more interested in how I approached problems and explained my thinking. I worked through a few coding questions involving data structures and algorithms, and there were also some probability-style questions that tested logical reasoning. The interviewers were clearly very sharp, but they were also approachable and encouraged me to talk through my thought process the entire time. When I got stuck, they would sometimes guide me with small hints so we could keep exploring the problem together. Overall, it felt less like a typical high-pressure interview and more like a thoughtful technical conversation with experienced engineers.
Domande di colloquio [1]
Domanda 1
“What is the expected number of coin flips needed to get two heads in a row?”
