Ultra-Low Latency C++ Engineer (High-Frequency Trading)
Ultra-Low Latency C++ Engineer (High-Frequency Trading)

Ultra-Low Latency C++ Engineer (High-Frequency Trading)

London Full-Time 120000 - 180000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and optimise ultra-low-latency C++ systems for high-frequency trading.
  • Company: Leading quant/systematic trading firm in London with a tech-first culture.
  • Benefits: Competitive salary up to £225k, total compensation up to £500k based on performance.
  • Why this job: Make a real impact where nanosecond optimisations matter in trading systems.
  • Qualifications: 5+ years in performance-critical C++ applications and strong systems programming skills.
  • Other info: Collaborate with top engineers and tackle cutting-edge performance engineering challenges.

The predicted salary is between 120000 - 180000 £ per year.

Ultra-Low Latency C++ Engineer | High-Frequency Trading

Salary: £150k-£225k

Total compensation: £250k-500k depending on performance and seniority

A leading quant/systematic trading firm have multiple headcount for Ultra-Low Latency C++ Engineers to join their High-Frequency Trading team in London.

The teams focus is building ultra-low-latency systems operating at global scale.

They\’re seeking experienced C++ engineers passionate about performance optimization and elegant system design where nanoseconds matter!

What You\’ll Do:

  • Design and optimize latency-critical C++ systems across trading, market data, and infrastructure components
  • Performance engineering at every layer: CPU, cache, memory, and network
  • Profile, benchmark, and fine-tune system behaviour under real-world conditions
  • Collaborate with hardware and FPGA engineers on end-to-end architecture design
  • Kernel-level optimization and low-level systems tuning

Required:

  • 5+ years developing performance-critical C++ applications (modern C++ standards)
  • Strong systems programming and low-level understanding
  • Expertise in Linux internals, kernel tuning, and low-level profiling tools
  • Genuine curiosity about hardware behaviour, networking, and system optimization

Why Join:

  • Work on systems where nanosecond optimizations have measurable impact
  • Collaborate with world-class engineers across disciplines (software, FPGA, infrastructure)
  • Technology-first culture that values innovation and technical excellence
  • Solve challenging problems at the cutting edge of performance engineering

Ultra-Low Latency C++ Engineer (High-Frequency Trading) employer: NJF Global Holdings Ltd

Join a leading quant/systematic trading firm in London, where you will be part of a technology-first culture that prioritises innovation and technical excellence. With competitive compensation packages and opportunities for collaboration with world-class engineers, this role offers a unique chance to work on ultra-low-latency systems that have a measurable impact on high-frequency trading. The firm is committed to employee growth, providing an environment where your passion for performance optimization can thrive.
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Contact Detail:

NJF Global Holdings Ltd Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Ultra-Low Latency C++ Engineer (High-Frequency Trading)

✨Tip Number 1

Network, network, network! Get out there and connect with people in the high-frequency trading space. Attend meetups, conferences, or even online webinars. You never know who might have a lead on your dream Ultra-Low Latency C++ Engineer role!

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your performance-critical C++ projects. Whether it's a GitHub repo or a personal website, let your work speak for itself. This is especially important in a tech-heavy field like ours where results matter.

✨Tip Number 3

Prepare for technical interviews by brushing up on your systems programming knowledge. Practice coding challenges that focus on low-level optimisations and performance engineering. We all know that nanoseconds can make a difference, so be ready to demonstrate your expertise!

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about their job search. Let’s get you into that Ultra-Low Latency C++ Engineer role!

We think you need these skills to ace Ultra-Low Latency C++ Engineer (High-Frequency Trading)

C++ Programming
Performance Optimization
System Design
Latency-Critical Systems
CPU Optimization
Cache Management
Memory Management
Network Optimization
Linux Internals
Kernel Tuning
Low-Level Profiling Tools
Hardware Behaviour Understanding
Networking Knowledge
Collaboration Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to highlight your experience with performance-critical C++ applications. We want to see your expertise in systems programming and any relevant projects that showcase your skills in low-level profiling and kernel tuning.

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to express your genuine curiosity about hardware behaviour and system optimisation. Let us know why you’re passionate about ultra-low latency systems and how you can contribute to our team.

Showcase Relevant Projects: If you've worked on any projects that involved latency-critical systems or performance engineering, make sure to include them. We love seeing real-world examples of your work, especially if they demonstrate your ability to optimise at every layer!

Apply Through Our Website: We encourage you to apply through our website for the best chance of getting noticed. It helps us keep track of applications and ensures you’re considered for the role. Plus, it’s super easy to do!

How to prepare for a job interview at NJF Global Holdings Ltd

✨Know Your C++ Inside Out

Make sure you brush up on modern C++ standards and be ready to discuss your experience with performance-critical applications. Be prepared to dive deep into topics like memory management, concurrency, and system design, as these will likely come up during the interview.

✨Understand the Hardware

Since this role involves collaborating with hardware engineers, it’s crucial to have a solid understanding of how hardware interacts with software. Familiarise yourself with concepts like CPU architecture, cache behaviour, and network latency, so you can speak confidently about optimisations that can be made at both levels.

✨Prepare for Technical Challenges

Expect to face technical challenges or coding tests that assess your problem-solving skills in real-time. Practise coding under pressure and be ready to explain your thought process clearly. This will demonstrate not only your technical skills but also your ability to communicate effectively.

✨Show Your Passion for Performance Engineering

Let your enthusiasm for performance optimisation shine through. Share examples of past projects where you’ve made significant improvements in latency or efficiency. This will help convey your genuine curiosity and commitment to excellence in the field, which is highly valued by the firm.

Ultra-Low Latency C++ Engineer (High-Frequency Trading)
NJF Global Holdings Ltd

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