At a Glance
- Tasks: Design and build high-performance C++ systems for a cutting-edge trading platform.
- Company: Join an elite team of engineers focused on performance-critical systems.
- Benefits: Exceptional compensation, real ownership, and exposure to complex engineering challenges.
- Other info: Collaborative environment with access to top industry engineers and career growth.
- Why this job: Make a direct impact on live trading outcomes and tackle unique engineering problems.
- Qualifications: 2+ years in performance-critical C++ systems and strong optimisation skills.
The predicted salary is between 36000 - 60000 £ per year.
Are you looking to work on problems that genuinely test the limits of performance, scale, and engineering craft? We are building a small, elite team of systems engineers to design and evolve the core infrastructure that powers a highly sophisticated trading platform. This is not application level development. This is deep work on performance critical systems where nanoseconds matter, correctness is non negotiable, and your decisions directly impact real world outcomes.
You will be working on the foundations of the trading stack, including market data, execution, simulation, and internal infrastructure. The problems are hard, the standards are high, and the impact is immediate. This is an environment built by engineers for engineers. You will have real ownership, real influence on architecture and direction, and the opportunity to rebuild and redesign systems end to end rather than maintaining legacy code.
What you will be working on:
- Designing and building high performance C++ systems that sit directly in the live trading path
- Optimising latency, throughput, and determinism across highly concurrent systems
- Working on market data capture, normalisation, and internal distribution at scale
- Building and evolving simulation and backtesting infrastructure used by researchers and traders
- Going deep on memory behaviour, data structures, and concurrency models
- Collaborating closely with traders and researchers on strategy and execution plumbing
What we are looking for:
- 2 plus years of experience building performance critical systems in C++
- Strong background in performance optimisation across CPU, memory, and network boundaries
- Experience with low latency systems, distributed systems, or high throughput pipelines
- GPU or accelerator experience is a strong plus
- Comfortable working close to the metal and reasoning about systems behaviour
- A collaborative, low ego approach with the ability to own problems end to end
- Strong communication skills and the confidence to engage with senior technical stakeholders
Why this is different:
- Small, elite team with very high technical bar
- Real ownership and influence over core systems and architecture
- Direct line of sight between your work and live trading outcomes
- Exposure to complex, interesting problems that do not exist in most engineering roles
- Exceptional compensation and access to some of the strongest engineers in the industry
If you are excited by performance, systems engineering, and working on problems that actually matter, this is the kind of role where you can do the best work of your career.
Core Engineer (C++) in London employer: NJF Global Holdings Ltd
As a leading technology-driven quantitative trading firm, we pride ourselves on fostering a dynamic and innovative work culture that prioritises collaboration and excellence. Our employees benefit from cutting-edge projects in ultra-low-latency systems, alongside opportunities for professional growth and development in a fast-paced environment. Located in a vibrant tech hub, we offer a unique chance to work with top-tier talent and state-of-the-art technology, making it an ideal place for those seeking meaningful and rewarding careers.
StudySmarter Expert Advice🤫
We think this is how you could land Core Engineer (C++) 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 NJF Global Holdings Ltd 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 NJF Global Holdings Ltd.
✨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 NJF Global Holdings Ltd.
✨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 NJF Global Holdings Ltd 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 Core Engineer (C++) 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 NJF Global Holdings Ltd.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at NJF Global Holdings Ltd 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 NJF Global Holdings Ltd
✨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 NJF Global Holdings Ltd 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.
