Lengthy but positive interview experience.

Every team member I spoke with seemed genuinely engaged and happy with their work and culture. Jump seems to value its people highly, more so than other HFT orgs like Citadel, as their attrition rate is extremely low. People seem uniformly happy with work and comp.

I started with a 3-hour online assessment, which I almost didn't take due to time constraints with other interviews, but I'm ultimately glad I did.

Then, a hiring manager call, followed by two 4-hour interview days that were a mix of coding and behavioral questions.

Coding questions were not typical LeetCode questions, nor math/stats related, nor low-level hardware problems. They were more realistic things you'd have to implement on the job, and working with the interviewer to do that correctly and well in a short time period.