Citadel / Citadel SecuritiesCoding·60 minMembers
Order Book Pair Coding
Members only
Open-ended order book implementation appears in Citsec phone screens (EQR Python QD) and Singapore HFT onsite round 1. The interviewer expects the candidate to enumerate the required APIs first, then ...
SWE
data-structure
trading
oop-design
complexity-analysis
medium
Frequency
Low
Last asked
2026-07-26
Stage
phone-screen · onsite-coding
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