Citadel Securities
Citadel Securities Offices
OnSite Workplace
Employees work from physical offices.
Typical time on-site:
5 days a week
Global Office Locations
London

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120 London Wall, London, United Kingdom, EC2Y 5ET
Recently posted jobs
Information Technology • Software • Financial Services • Quantitative Trading
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.
Information Technology • Software • Financial Services • Quantitative Trading
The role involves building and supporting production-level trading systems in C++ for credit and rates products, collaborating with traders and quantitative researchers.
Information Technology • Software • Financial Services • Quantitative Trading
Build full-stack, low-latency trading and pricing tools for options traders. Collaborate with traders, researchers, and business stakeholders to design intuitive frontends and scalable backend services, prototype and productionize distributed systems, and expand trading capabilities globally while improving performance, stability, and usability.

