Senior Low-Latency Risk Engine Lead (Hybrid)

Citigroup Inc.; United States; Hybrid; USD 180,000 - 260,000; Full time

Benefits offered by this job

27 days annual leave

Discretionary annual bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Paid Parental Leave

Special discounts for employees

Job summary

Citigroup Inc. seeks an experienced Senior Software Engineer to own critical latency-sensitive risk-checking components in the cash equities trading hot path.

You will ensure pre-trade risk controls operate with microsecond performance while maintaining correctness and resilience at scale, and mentor engineers across global centers. You will design and implement ultra-low-latency risk engine, IPC frameworks with Aeron/Solace, optimize JVM/C++ performance, and lead cross-functional delivery with

Qualifications

• Extensive software engineering experience in risk management or latency-critical systems.
• Experience in cash equities electronic trading or algorithmic trading platforms.
• Proven leadership of engineering teams (onshore/offshore).
• Strong communication across multicultural, cross-regional stakeholders.

Responsibilities

• Design, develop and maintain ultra-low-latency risk engine for real-time checks.
• Architect high-performance, multi-threaded components.
• Collaborate with traders, quants, and infrastructure teams.
• Lead testing frameworks and CI/CD for latency systems.
• Mentor engineers and drive architectural decisions.

Skills

Low-latency Java

C++

Rust

Aeron

Solace

Multi-threading

JVM tuning

NUMA-aware

Kernel tuning

CI/CD

Testing

Leadership

Communication

Tools

Aeron

Solace

Job description

Citigroup Inc. seeks an experienced Senior Software Engineer to own critical latency-sensitive risk-checking components in the cash equities trading hot path.

You will ensure pre-trade risk controls operate with microsecond performance while maintaining correctness and resilience at scale, and mentor engineers across global centers. You will design and implement ultra-low-latency risk engine, IPC frameworks with Aeron/Solace, optimize JVM/C++ performance, and lead cross-functional delivery with