Senior Market Data Engineer: RealTime Trading Infrastructure

Citadel Securities; New York (NY); On-site; USD 120,000 - 160,000; Full time

Job summary

Citadel Securities is seeking a self-driven Senior Market Data Engineer in New York to take end-to-end ownership of core components of their market data stack. This high-impact role requires strong hands-on experience in modern C++ within performance-critical systems. The candidate will design and implement high-performance market data systems and drive optimizations for throughput and latency, while collaborating closely with trading and quantitative research teams to enhance system resiliency and precision.

Qualifications

• Strong hands-on experience in modern C++ within performance-critical systems.
• Deep understanding of large-scale, real-time, low-latency systems.
• Experience building or maintaining market data feed handlers and order book systems.

Responsibilities

• Design, implement, and own high-performance market data systems.
• Drive exchange protocol upgrades and venue onboarding.
• Optimize systems for throughput, latency, and resiliency.

Skills

Modern C++

Low-latency systems

Multithreading

Networking

System debugging

Job description

Citadel Securities is seeking a self-driven Senior Market Data Engineer in New York to take end-to-end ownership of core components of their market data stack. This high-impact role requires strong hands-on experience in modern C++ within performance-critical systems. The candidate will design and implement high-performance market data systems and drive optimizations for throughput and latency, while collaborating closely with trading and quantitative research teams to enhance system resiliency and precision.