Quantitative Research Engineer
Citadel SecuritiesAbout the Role
Research Engineers at Citadel Securities are responsible for designing, building and optimizing electronic trading platforms. Work closely with quantitative researchers, simulation teams, and traders to translate mathematical models into production-grade, ultra-low latency implementations.
- Collaborate closely with quantitative researchers to translate mathematical models into production-grade, ultra-low latency implementations
- Maintain and improve trading algorithms by looking for both quantitative and performance-based opportunities
- Apply advanced mathematical and computational techniques to market microstructure problems
- Develop and optimize high performance C++ for real-time trading systems
- Profile, measure, and reason rigorously about system behavior under extreme performance constraints
Responsibilities
- Collaborate closely with quantitative researchers to translate mathematical models into production-grade, ultra-low latency implementations
- Maintain and improve trading algorithms by looking for both quantitative and performance-based opportunities
- Apply advanced mathematical and computational techniques to market microstructure problems
- Develop and optimize high performance C++ for real-time trading systems
- Profile, measure, and reason rigorously about system behavior under extreme performance constraints
- Designing, building and optimizing our electronic trading platform
- Work closely with our researchers, simulation and live traders to perform various functions, including the development of our core-trading infrastructure and high-throughput trading systems
- Work with the research team to identify and optimize critical bottlenecks in research and production trading
- Work on projects from inception through to deployment and take real ownership of the assets they are building
Requirements
- Strong mathematical and quantitative foundation
- Strong background in systems programming and performance engineering
- Expert-level proficiency in C++ with a demonstrated history of writing high performance, low latency code
- Understanding of modern CPU architectures: including pipelines, caches, memory models, and parallel execution
- Proven ability to optimize software across abstraction layers, from algorithms to hardware
What You'll Get
- Exposure to quantitative trading