At a Glance
- Tasks: Design and optimise low-latency trading systems in C++ for high-frequency trading.
- Company: Leading high-frequency trading firm known for technical sophistication.
- Benefits: Competitive salary, dynamic work environment, and opportunities for professional growth.
- Other info: Collaborative culture with ownership of meaningful engineering challenges.
- Why this job: Join a fast-paced team and make a real impact on trading operations.
- Qualifications: 5+ years C++ experience, strong understanding of trading systems, and Linux fundamentals.
The predicted salary is between 70000 - 90000 £ per year.
Miller Maxwell is retained by one of the most technically sophisticated high-frequency trading firms in the market. This is a rare opportunity to work where microseconds matter — building the systems that sit at the heart of live trading operations.
You'll join a high-calibre markets engineering team embedded directly alongside traders and quants, building and optimising the low-latency infrastructure that powers multiple trading desks. This is genuine systems engineering — not maintaining legacy code, but architecting solutions where performance is the product.
With significant programmes of work planned across Q3 and Q4, you'll have immediate ownership of meaningful problems: reducing latency, hardening platform stability, and delivering tooling that traders actually rely on. The environment is collaborative, fast-paced, and technically uncompromising.
What you will be focused on:
- Designing, building, and optimising low-latency trading systems in C++ across multiple desks
- Identifying and eliminating performance bottlenecks — from application logic through to kernel and network layers
- Collaborating with traders and quants to translate strategy requirements into robust, production-ready software
- Contributing to platform architecture discussions and taking end-to-end ownership of key engineering initiatives
- Rigorous testing, profiling, and debugging across complex distributed systems
- Defining and refining development estimates as part of an agile delivery team
Skills required:
- 5+ years of C++ development experience in a performance-sensitive environment
- Demonstrable experience in HFT or ultra-low-latency systems development
- Strong understanding of capital markets structure and trading lifecycle
- Solid Linux fundamentals — comfortable at the command line and in production environments
- SQL proficiency and strong debugging and problem-solving instincts
HIGHLY DESIRABLE:
- Exposure to options trading systems or derivatives infrastructure
- Quantitative background — mathematics, statistics, or a related discipline
- Secondary language experience: Python, Java, or C
- An interest or experience within crypto trading
- A STEM related degree
- Agile delivery experience in a fast-moving engineering team
Trading Systems Software Engineer in London employer: Miller Maxwell Ltd
Miller Maxwell is an exceptional employer for Trading Systems Software Engineers, offering a dynamic and collaborative work environment where innovation thrives. With a focus on cutting-edge technology in high-frequency trading, employees benefit from significant growth opportunities, working alongside top-tier traders and quants to tackle meaningful challenges that directly impact trading performance. The firm prioritises a culture of excellence and technical rigor, ensuring that every team member plays a crucial role in shaping the future of trading systems.
StudySmarter Expert Advice🤫
We think this is how you could land Trading Systems Software Engineer 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 Miller Maxwell 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 Miller Maxwell Ltd.
✨Tap into Online Developer Communities
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We think you need these skills to ace Trading Systems Software Engineer 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 Miller Maxwell 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 Miller Maxwell 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 Miller Maxwell 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 Miller Maxwell 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.
