Citadel Securities
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The Next-Generation Capital Markets Firm
Citadel Securities’ work is powered by the deepest integration of financial, mathematical and engineering expertise. Combining deep trading acumen with cutting-edge analytics and technology, team members deliver critical liquidity to the world’s most important financial institutions — while helping shape the global markets of tomorrow.
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Markets move fast. Citadel Securities’ engineers build innovative tools and distributed systems that keep its business nimble and responsive — operating with high reliability in real time.
The company works in small teams, partnering with researchers and traders to solve complex problems at scale. Teams move quickly from idea to implementation, and the markets deliver swift feedback.
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Dmitry loves the markets. His willingness to approach seemingly impossible feats as opportunities makes him a culture carrier and leader. His contributions propelled his rise from individual contributor to head of options technology within four years.
Recently posted jobs
Information Technology • Software • Financial Services • Quantitative Trading
Develop and evolve investor-facing equities products using React and TypeScript. Partner with investors, product managers, UX designers, and engineering teams to understand workflows, prototype solutions, and deliver high-performance, data-intensive interfaces for research, risk analytics, portfolio analysis, and investment decisions. Own products end to end, from identifying user needs through launch and iteration, while maintaining high standards for quality, testing, performance, and maintainability.
Information Technology • Software • Financial Services • Quantitative Trading
Build the core visualization platform, reusable frameworks, design systems, and developer tooling for client-facing financial analytics. Translate complex market and trading data into clear, high-performance applications while partnering with product, design, sales, and engineering teams. Evaluate emerging technologies, provide hands-on technical leadership, conduct design reviews, and mentor engineers. The role requires strong software engineering, visual design judgment, interaction design, and information architecture expertise.
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.
At a glance
take time to socialize
A team motto is, "Whatever we do, we do to the utmost." Box seats for athletic events. Rooftop yoga. There are always opportunities to get to know fellow colleagues better.
care for your health
Benefits cover all aspects of team members’ physical and mental health, from fitness subsidies and wellness initiatives to mindfulness programs and telehealth.
realize your full potential
From day one, team members have the chance to learn and grow at an exceptional pace. Those who are ambitious and take initiative easily find new opportunities that push them even further.
join exceptional talent
The brightest minds in finance, mathematics and technology solve consequential problems at Citadel Securities. Team members drive operational excellence and help create more dependable global markets.
