Technical Screen

Exchange Arbitrage and Quote Throughput

Jane StreetSoftware Engineer · Intern · Technical Screen · Aug 2026

It was a low-level-design problem. Core problem: An Exchange Arbitrage System for stocks. Assume there are multiple exchanges, each with a market feed continuously publishing bid and ask prices for different instruments or stocks. Design and implement an arbitrage strategy. The example gave AAPL on exchange A a bid of \$1.00 and an ask of \$1.10, while exchange B had a bid of \$0.90 and an ask of…

Shared by a candidate · reported Aug 2026. Interview formats change; use it as a guide, not a script.