First round technical interview that revolves around coding and probability and linear algebra. Super day is 3 rounds with applied data science, pair coding, and math. Great experience over all.
Interview questions [1]
Question 1
Describe yourself and a time where you made a hard decision?
Few hr calls prior, First round: Questions on regularizations, gradient descent, probability brain teasers, calculus, linear algebra and prob ineq. Final Onsite: 3 rounds in total, Leetcode coding problems, questions on higher math concepts, linear regression, rapid fire brain teaser problems, and my previous ml background.
Short process, one or two rounds on phone and then onsite for a whole day. The interviewers were very nice. Basically just some math, coding questions, nothing very different from other firms.
Interview questions [1]
Question 1
Some prob and stat questions and some combinatorics
I applied online. The process took 2 weeks. I interviewed at Jump Trading (London, England) in Sept 2025
Interview
First there was a 30 minute casual recruiter chat. Asked a bit about motivations and what you know about the firm. Then a 1 hour technical, covering programming and probability.
Interview questions [1]
Question 1
Expected time to hit all points on a simple random walk on a circle.