C++ Engineer, Reliability – Low-Latency Market Making and Stat Arb

NJF Global Holdings Ltd; New York (NY); On-site; USD 150,000 - 230,000; Full time

Job summary

NJF Global Holdings Ltd is seeking a strong C++ engineer to own and keep fast the firm's trading stack behind quoting, strategy engines, market data handlers and order gateways.

You will fix production crashes and latency spikes on the hot path, lead the response during trading hours, and build monitoring and automation to prevent repeats. The role emphasizes reliability targets and safe releases, with learning on the job for markets and in-house tooling.

Qualifications

• Strong C++ engineer comfortable with production systems.
• Experience in latency-sensitive, high-uptime environments.
• Ability to diagnose and fix production issues in a trading stack.

Responsibilities

• Keep the trading stack running and fast behind quoting and strategy engines.
• Fix production crashes and latency spikes on the hot path.
• Lead incident response during trading hours and ship fixes.
• Build monitoring and automation to prevent repeats and set reliability targets.

Skills

C++

Systems programming

Latency optimization

Tools

Linux

GDB

Perf tools

Job description

Our client is a discreet, low-profile trading firm running automated market making and short-term statistical arbitrage. Their edge depends on a C++ stack that stays up and stays fast, and they are hiring a strong C++ engineer to own that.

The role

Keep the trading stack running and fast. Work directly in the C++ code behind the quoting and strategy engines, market data handlers and order gateways, finding and fixing everything from production crashes to latency spikes on the hot path. Lead the response when something breaks during trading hours, find the root cause, and ship the fix yourself. Build the monitoring and automation that catch problems before they hit quoting or fills, so the same incident never happens twice. Set reliability and latency targets and work with developers and traders to make releases safe.

Why it's interesting

This is a programming role first. Your code has a direct, measurable effect on how the firm trades, and every fix shows up in the numbers. No trading background needed: the markets, protocols and in-house tooling are learned on the job.

Who it suits

A strong C++ engineer who enjoys working out why production systems fail, from a trading firm or from tech. Engineers from HFT and market-making shops who own their production issues, and engineers from SRE tracks held to a full software engineering bar, such as Google's SRE-SWE, will both feel at home.