Senior Low-Latency C++ Engineer — Remote

WhyHireWrong?; Greater London; Hybrid; GBP 120,000 - 200,000; Full time

Job summary

The NDA-listed Global Trading Firm is seeking a senior, hands-on C++ engineer to own the low-latency hot path for automated trading. You will design, implement, and optimize performance-critical components in production, working alongside traders and quants.

This is a 12-month remote engagement (UK, NL, FR) with conversion to a permanent role by mutual agreement. You will operate in a highly selective environment benchmarked to top-of-market rates for senior low-latency engineers.

Qualifications

• 6+ years of professional C++ engineering in production low-latency systems.
• C++17 minimum, C++20 preferred.
• Experience in traditional financial services trading environments.
• Direct market-data, feed-handler, or electronic-trading exposure.
• Hands-on with lock-free programming and low-level networking.

Responsibilities

• Design, build, and optimize the low-latency hot path for automated/electronic trading in modern C++ (C++17/20).
• Build and maintain market-data infrastructure: feed handlers, ticker plant, order-book construction, and normalization.
• Implement exchange connectivity and FIX-based order flow, including smart-order-routing components.
• Drive down tick-to-trade latency using lock-free data structures, cache- and NUMA-aware design, and kernel-bypass networking.
• Profile, measure, and eliminate latency and jitter across the full stack.
• Translate strategy and execution needs from traders and quants into performant, reliable production code.
• Own components end-to-end: reliability, observability, and incident response.

Skills

C++

Low-latency

Modern C++

Lock-free

Networking

Tools

Solarflare/Onload

DPDK

Multicast

Kernel-tuning

Job description

The NDA-listed Global Trading Firm is seeking a senior, hands-on C++ engineer to own the low-latency hot path for automated trading. You will design, implement, and optimize performance-critical components in production, working alongside traders and quants.

This is a 12-month remote engagement (UK, NL, FR) with conversion to a permanent role by mutual agreement. You will operate in a highly selective environment benchmarked to top-of-market rates for senior low-latency engineers.