At a Glance
- Tasks: Design and build ultra-low-latency trading systems that impact real-time execution.
- Company: Cutting-edge trading technology firm with a focus on high-performance systems.
- Benefits: Highly competitive salary, remote work flexibility, and significant career growth potential.
- Other info: Remote-first culture across the UK and Europe with high technical autonomy.
- Why this job: Join a team at the forefront of low-latency trading and make a real difference.
- Qualifications: 8+ years in low-latency systems with expertise in C++, C, or Rust.
The predicted salary is between 80000 - 100000 £ per year.
A cutting‐edge trading technology environment is seeking a Staff Low‐Latency Trading Systems Engineer to design and build exchange‐grade infrastructure at the forefront of market microstructure and high‐performance execution. This is a deeply technical, high‐impact role focused on the absolute critical path—where microseconds matter and engineering quality directly influences trading outcomes.
This position sits at the core of a high‐performance trading stack, owning the architecture and development of ultra‐low‐latency systems used in real‐time execution environments. The successful candidate will operate close to the metal—optimising every layer from hardware interaction through to matching logic—while maintaining determinism, resilience, and market integrity.
What You'll Be Working On:
- Designing and building high‐performance order books and matching engines
- Developing exchange‐grade connectivity and market data systems
- Optimising hot‐path performance (memory, CPU, latency, concurrency)
- Engineering ultra‐low‐latency networking and packet processing systems
- Implementing robust risk controls, replay systems, and fault tolerance
- Working across Linux internals, CPU architecture, and hardware‐level optimisation
- Contributing to overall system architecture and engineering direction
What You'll Bring:
- Deep expertise in order books, matching engines, and market microstructure
- 8+ years building performance‐critical, low‐latency systems (C++, C, or Rust)
- Experience in HFT, exchanges, or market infrastructure environments
- Strong understanding of networking, protocols, and low‐latency data flows
- Advanced knowledge of CPU architecture, memory models, and concurrency
- Ability to design systems that balance performance, correctness, and resilience
- Strong technical leadership and architectural ownership experience
Nice to Have:
- Rust as a primary systems language
- Experience building or rewriting matching engines or trading infrastructure
- Knowledge of FIX, ITCH, OUCH, SBE or similar protocols
- Exposure to FPGA, kernel bypass, or colocated trading environments
- Experience with time synchronisation (PTP) and deterministic systems design
- Interest in applying exchange‐grade performance to crypto‐native systems
Why This Role:
- Work on genuinely complex, performance‐critical systems
- Operate at the forefront of low‐latency trading and market design
- High level of ownership and technical autonomy
- Remote‐first across the UK and Europe
- Package fully negotiable, with significant upside for high‐calibre candidates
This is an opportunity for a senior engineer to take ownership of systems where performance is everything and engineering excellence is non‐negotiable.
Senior Ultra‐Low Latency Trading Systems Engineer - Remote in London employer: Certus Sales Recruitment
Join a pioneering trading technology firm that champions innovation and excellence in ultra-low latency systems engineering. With a remote-first culture across the UK and Europe, we offer a highly competitive and negotiable package, fostering an environment where your technical expertise can thrive and directly impact market performance. Our commitment to employee growth and autonomy ensures that you will be at the forefront of cutting-edge developments in high-frequency trading, making this an exceptional opportunity for those seeking meaningful and rewarding work.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Ultra‐Low Latency Trading Systems Engineer - Remote in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Certus Sales Recruitment or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Certus Sales Recruitment.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Certus Sales Recruitment.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Certus Sales Recruitment that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Ultra‐Low Latency Trading Systems Engineer - Remote in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Certus Sales Recruitment.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Certus Sales Recruitment and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Certus Sales Recruitment
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Certus Sales Recruitment uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
