Senior Ultra-Low Latency Risk Engine Lead

Citigroup; Singapore; On-site; SGD 180,000 - 320,000; Full time

Job summary

Citi Equities Technology is seeking a Senior Software Engineer to lead the ultra low-latency risk engine for electronic trading. You will own high‑throughput, real‑time risk checks in the cash equities hot path, driving cross‑regional delivery and architecture decisions.

You will mentor engineers, optimize JVM/C++ performance, and collaborate with product, quant research and infrastructure teams to ensure latency targets are met with resilience at scale.

Qualifications

• 10+ years in software engineering.
• Experience building latency‑critical systems for trading.
• Strong in JVM performance tuning and low-latency design.

Responsibilities

• Design, develop and maintain ultra low‑latency risk engine in cash equities trading.
• Optimize multi‑threaded components for sub‑microsecond decisions.
• Integrate risk/position modules with connectivity and data feed handlers.
• Mentor engineers and drive architectural decisions across global teams.

Skills

Low latency Java

C++/Rust

Multithreading

GC tuning

Aeron/Solace IPC

Real-time risk

Education

Bachelor's degree in CS/Engineering

Tools

Aeron

Solace

Job description

Citi Equities Technology is seeking a Senior Software Engineer to lead the ultra low-latency risk engine for electronic trading. You will own high‑throughput, real‑time risk checks in the cash equities hot path, driving cross‑regional delivery and architecture decisions.

You will mentor engineers, optimize JVM/C++ performance, and collaborate with product, quant research and infrastructure teams to ensure latency targets are met with resilience at scale.