Hudson River Trading
- 21
- questions
- 6
- stages
How the process runsFirm careers page, read Nov 6, 2026
- 1ApplicationStated by HRTApply to only one posting and allow up to two weeks for review; SWE applicants choose C++ or Python for interviewing.
- 2Online assessmentStated by HRTTechnical interviews usually start with a coding test.
- 3Phone screenStated by HRTThen one to two technical phone screens.
- 4First roundTypicalProbability and betting games, market making scenarios, and how you update on new information.
- 5Final roundStated by HRTThen an onsite final interview of multiple rounds, with length and topics varying by role.
- 6OfferTypicalUsually within days of the final round.
Timing between stages shows on each program page once students report it. Firms change formats by year and office; the firm's own invite is the final word.
What it tends to weighStated, then typical
From HRT's careers site: Algorithm developers need math, statistics, data analysis, and C++ or Python skills; no prior finance experience is needed. Source
- Expected value and probability done quickly and correctly, with the reasoning said out loud.
- Making markets: quoting a width, updating on fills, and managing inventory.
- Collaboration and admitting mistakes quickly, which trading firms test directly.
- behavioral
- 3 questions
- technicals
- 14 questions
- markets
- 3 questions
- modeling
- 1 question
The HRT set is Pro
21 questions, 4 written for HRT, run as a drill with a 80% pass mark.
Topic drill sets stay free, one a day.
7 days of Pro. No card, nothing to cancel.