Teams at Citadel Securities

Lead architecture and engineering of high-performance crypto market feed handlers and exchange connectivity. Build low-latency ingestion, normalization, sequencing, order book construction, and distribution systems; drive venue onboarding, data quality, reconciliation, recovery, and replay; improve latency, throughput, resiliency in a 24/7 production environment; partner with trading and research teams; mentor engineers and define operational KPIs.

Support rates sales and trading desk by booking and reconciling trades, managing risk breaks, automating operational workflows with developers, coordinating releases and testing, and liaising with Trading, Technology, Compliance, Operations, Accounting and Business Management to deploy new trading capabilities and support day-to-day operations.

The Market Data Engineer will design and implement high-performance market data systems, focusing on trading infrastructure, performance optimization, and system resiliency.