Zero-Copy Packet Parsing - Quant Developer Interview Question
Difficulty: Medium
Category: systems
Asked at: Jump Trading, DRW, Tower Research, Optiver, HRT
Topics: pointers, casting, memory-layout, c++
Problem Description
High-Frequency Trading (HFT) systems prioritize low-latency execution, often processing market data feeds directly from raw network packets without intermediate memory copies. By utilizing zero-copy parsing techniques, such as casting pointers to packed structures, developers can significantly reduce processing time for high-volume trade streams. This approach is critical for maintaining accurate, real-time analytics like Volume Weighted Average Price (VWAP) on specific financial instruments.
T
Practice this medium developer interview question on MyntBit - the all-in-one quant learning platform with 200+ quant interview questions for Jane Street, Citadel, Two Sigma, and other top quantitative finance firms.