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Low-Latency C++ Engineer- Quant Trading / HFT

Oxford KnightLondon🇬🇧United KingdomPosted 18 Oct 2026

Why This Role Stands Out

This hybrid role offers an exceptional opportunity to engineer cutting-edge, low-latency C++ systems within leading quantitative trading firms, with a highly competitive compensation package of up to £600,000+. You'll thrive here if you possess strong C++ and systems programming skills, a passion for performance optimization down to the hardware level, and an eagerness to tackle complex, real-time challenges. Apply now to join a dynamic environment pushing the boundaries of financial technology.

Quick Overview

Salary
£200k - £600k/yr
Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
London, United Kingdom
Posted
3 days ago
C++

Job Description

London | £200k-£600k+ TC | Quant Trading / HFT
I'm working with several of the world's leading quantitative trading firms and market makers looking to hire exceptional C++ engineers into performance-critical trading teams.
These are engineering environments where performance genuinely matters. Depending on the team, you could be working across market data, exchange connectivity, execution, order books, real-time risk or the core infrastructure underpinning automated trading.
The problems span the entire stack: application code, operating systems, networking and modern CPU architecture. Current teams across the market are working on systems processing enormous volumes of real-time market data while continuously pushing latency, throughput and reliability.
The work can include:
  • Designing high-performance C++ trading systems
  • Optimising critical paths for latency and throughput
  • Multithreading, concurrency and lock-free programming
  • Network and systems programming
  • CPU/cache/memory optimisation and profiling
  • Real-time market data and execution infrastructure
  • Measuring and eliminating jitter and tail latency
  • Taking ownership of systems running live in production

Looking for:
  • Excellent modern C++ and computer science fundamentals
  • Strong understanding of concurrency, memory and performance
  • Linux/systems knowledge
  • An interest in understanding performance all the way down to the hardware

Trading experience is useful but absolutely not essential. Some of my clients actively like engineers coming from highly technical environments outside finance.
These firms offer some of the strongest engineering problems and compensation available anywhere in software.
Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.
Contact
If you think you're a good match, or would like further information, please contact:
Henry Abbot
henry.abbot@oxfordknight.co.uk
+44 (0)20 3475 7199
linkedin.com/in/henry-abbot

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