Senior Java Latency Engineer — OMS/EMS (Aeron/ FIX)

Signify Technology; New York (NY); Hybrid; USD 150,000 - 225,000; Full time

Job summary

Signify Technology in New York is seeking a Senior Low Latency OEMS Engineer (Java) to own latency-critical components of the firm’s Order and Execution Management System, built on a deterministic, event-driven core with FIX links to brokers.

You will work in a hybrid environment, collaborating across desks in New York, London, and Tokyo, applying AI-guided coding, and driving production readiness from development through deployment.

Qualifications

• 6+ years Java experience in low-latency environments.
• 3+ years of hands-on work with order/EMS/OMS or HFT systems.
• Experience with Aeron/SBE-based architectures and FIX protocols.

Responsibilities

• Build latency-critical logic for order lifecycle and pre-trade risk.
• Own market-facing gateways and APIs (FIX, Aeron/SBE).
• Apply zero-allocation, GC-free techniques and off-heap buffers.
• Benchmark latency with JMH and distributed tracing.
• Develop and enforce guardrails for AI coding agents used in production.
• Support deployment, CI/CD, and cross-region DR.

Skills

Java (JDK)

Low latency

Aeron

SBE/Protobuf

FIX

GC tuning

Linux

CI/CD

Tools

Aeron tooling

Agrona

Chronicle

LMAX Disruptor

Artio/QuickFIX/J

Job description

Signify Technology in New York is seeking a Senior Low Latency OEMS Engineer (Java) to own latency-critical components of the firm’s Order and Execution Management System, built on a deterministic, event-driven core with FIX links to brokers.

You will work in a hybrid environment, collaborating across desks in New York, London, and Tokyo, applying AI-guided coding, and driving production readiness from development through deployment.