Build high-performance trading tools and large-data research platforms in small teams. Design system architectures, develop resilient production software, and apply distributed computing, NLP, and machine learning to solve complex quantitative problems while collaborating with engineers, traders, and researchers.
Job Description
At Citadel Securities, our engineers work in small teams to turn the best ideas into high-performing and resilient technology. With short development cycles, work rapidly goes into production. As an engineer, you can create system architectures, develop platforms and build web frameworks. You'll have access to state-of-the-art tools and apply innovative techniques including distributed computing, natural language processing, machine learning and more.
Your Objectives:
Your Skills & Talents:
Opportunities available in Miami and New York.
In accordance with applicable law, the base salary range for this role is $235,000 to $300,000.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
About Citadel Securities
Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market's and our clients' most critical challenges. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com .
At Citadel Securities, our engineers work in small teams to turn the best ideas into high-performing and resilient technology. With short development cycles, work rapidly goes into production. As an engineer, you can create system architectures, develop platforms and build web frameworks. You'll have access to state-of-the-art tools and apply innovative techniques including distributed computing, natural language processing, machine learning and more.
Your Objectives:
- Create technological tools that bring trading strategies to life
- Develop high-performance, large data research platforms
- Work in small teams to build the future of finance
Your Skills & Talents:
- Bachelor's, master's or PhD in Computer Science, Computer Engineering or related fields
- Exceptional programming and design skills
- Strong analytical skills and familiarity with probability and statistics
- Ability to communicate effectively in a collaborative, complex and highly technical team environment
- Intellectual curiosity and passion for solving challenging problems using technology
Opportunities available in Miami and New York.
In accordance with applicable law, the base salary range for this role is $235,000 to $300,000.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
About Citadel Securities
Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market's and our clients' most critical challenges. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com .
Similar Jobs at Citadel Securities
Information Technology • Software • Financial Services • Quantitative Trading
Summer internship conducting quantitative research to develop, backtest, and implement predictive trading models using advanced statistical and machine learning techniques, unconventional data sources, and coding in Python/R/C++. Collaborate with senior researchers and participate in live trading deployment and analysis.
Top Skills:
Agentic SystemsC++Large Language ModelsMachine LearningPythonR
Information Technology • Software • Financial Services • Quantitative Trading
11-week software engineering internship building high-performance research platforms and trading tools. Work in small teams to design systems, develop platforms and web frameworks, and apply distributed computing, NLP and machine learning. Collaborate with senior engineers, network with peers, and contribute code that rapidly moves into production.
Top Skills:
Distributed ComputingLarge-Scale Data PlatformsMachine LearningNatural Language ProcessingWeb Frameworks
Information Technology • Software • Financial Services • Quantitative Trading
Join as an FPGA engineering intern to design, implement, and test FPGA solutions for ultra-low latency trading systems. Improve system efficiency and performance via RTL coding, synthesis, simulation, and hardware validation while collaborating in small teams with engineers and business stakeholders.
Top Skills:
BashCFpga SynthesisHardware ValidationPythonRtlSimulationStatic AnalysisSystemverilogTclVhdl
What you need to know about the Los Angeles Tech Scene
Los Angeles is a global leader in entertainment, so it’s no surprise that many of the biggest players in streaming, digital media and game development call the city home. But the city boasts plenty of non-entertainment innovation as well, with tech companies spanning verticals like AI, fintech, e-commerce and biotech. With major universities like Caltech, UCLA, USC and the nearby UC Irvine, the city has a steady supply of top-flight tech and engineering talent — not counting the graduates flocking to Los Angeles from across the world to enjoy its beaches, culture and year-round temperate climate.
Key Facts About Los Angeles Tech
- Number of Tech Workers: 375,800; 5.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Snap, Netflix, SpaceX, Disney, Google
- Key Industries: Artificial intelligence, adtech, media, software, game development
- Funding Landscape: $11.6 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Strong Ventures, Fifth Wall, Upfront Ventures, Mucker Capital, Kittyhawk Ventures
- Research Centers and Universities: California Institute of Technology, UCLA, University of Southern California, UC Irvine, Pepperdine, California Institute for Immunology and Immunotherapy, Center for Quantum Science and Engineering

