DRW Online Assessment
DRW screens with one of two tracks depending on the role. The Quant Research / Quant Trading track is a timed 45-minute set of about 6 short math and probability problems, all fill-in-the-blank, with the numbers rotated each sitting. The Software Engineer track is a 150-minute, 3-problem coding set (Codility-style, focused on correctness). Either OA feeds the same pipeline: pass the OA, then a 45-minute Zoom round, then an onsite.
QR / QT — 45-min math OA
The quant screen is roughly 6 short math / probability problems in 45 minutes, all fill-in (no multiple choice). The recurring families are matrix unknowns, an EV dice game, moments and covariance, a CLT / sampling tail, a Markov-chain stationary distribution, a squircle / Gamma-function area, and (2025+) a matrix-calculus 'invert then differentiate' item. Numbers rotate every sitting, so this timed set drills the methods on the verified problem set.
Software Engineer — SDE 150-min coding OA
The SDE OA is 150 minutes, 3 problems, with no hidden-test feedback - so test your own edge cases. The recurring problems below are auto-graded.
- Notification Cropping Coding · easy
- Maximum Income, Already Holding One Asset Coding · medium
- Maximum Number of Equal-Sum Moves Coding · medium
DRW OA — FAQ
What is the DRW online assessment?
DRW screens with one of two tracks depending on the role. The Quant Research / Quant Trading track is a timed 45-minute set of about 6 short math and probability problems, all fill-in-the-blank, with the numbers rotated each sitting. The Software Engineer track is a 150-minute, 3-problem coding set (Codility-style, focused on correctness). Either OA feeds the same pipeline: pass the OA, then a 45-minute Zoom round, then an onsite.
What is the format of the DRW OA?
It runs as 2 tracks (45-min math OA, SDE 150-min coding OA). QR / QT, Software Engineer — each timed, auto-graded where applicable.
How do I practice for the DRW online assessment?
Work the sample questions above (each with a full worked solution), then take the interactive DRW OA practice on QuantVault. For the full interview, see the DRW interview-questions set.