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- Tasks: Design and optimise ultra-low-latency trading systems using cutting-edge C++ technologies.
- Company: Join a top-tier proprietary trading firm revolutionising their trading platform.
- Benefits: Competitive salary, dynamic work environment, and opportunities for rapid career growth.
- Why this job: Be at the forefront of technology, where every nanosecond counts in real-time trading.
- Qualifications: Experience in ultra-low-latency systems and deep knowledge of CPU architecture required.
- Other info: Flat structure with no bureaucracy, fostering collaboration between engineering and trading teams.
The predicted salary is between 36000 - 60000 £ per year.
We are partnering with one of the world’s most technically ambitious proprietary trading firms — a group rebuilding their entire trading platform from the metal up to operate at the physical limits of modern hardware. This isn’t an incremental improvement. It’s a total re-architecture of the fastest system on the planet, where every microsecond is contested ground and every cache miss is a bug.
Location: London / New York / Chicago
Environment: C++20/23 • Linux • Kernel-bypass Networking • FPGA • RDMA • Nanosecond Execution
Their engineers operate where nanoseconds decide P&L — measured, profiled, and deployed in live markets where performance is the edge.
They’re now seeking an elite C++ Engineer capable of designing and optimising the core of a real-time execution platform — a system that ingests millions of market events per second and reacts deterministically, faster than anyone else on Earth.
The successful engineer will:
- Architect zero-GC, lock-free pipelines built around ring buffers and cache-aligned data structures.
- Develop custom kernel-bypass network stacks using DPDK, RDMA, and Solarflare Onload, tuned to single-digit microsecond latency.
- Engineer branch-prediction-aware order handlers and SIMD-vectorized pricing logic in AVX-512.
- Deliver next-tick telemetry with nanosecond-precision timestamps and cross-core synchronization.
- Collaborate with FPGA specialists to merge hardware precision with software agility.
The Toolkit:
- Modern C++20/23, template metaprogramming, constexpr, inline assembly when necessary.
- Profiling and optimization using perf, VTune, bcc, and FlameGraphs.
- Deep knowledge of NUMA-aware design, memory fences, and lock-free concurrency.
- Expertise in custom allocator design, branchless algorithms, and profile-guided optimization.
- A habit of benchmarking rather than assuming — data, not theory.
Ideal Background:
- Proven experience building ultra-low-latency systems in trading, gaming, or networking.
- Deep understanding of CPU architecture, from cache hierarchies to speculative execution.
- The mindset of someone who thinks in nanoseconds and measures in CPU cycles.
- A record of winning battles with compilers, kernels, and performance bottlenecks.
This firm operates on a flat structure — no committees, no bureaucracy, no excuses. Engineering, hardware, and trading sit shoulder-to-shoulder. Code that’s 10ns faster doesn’t just run better — it changes the business.
If you believe latency is the final frontier, and profiling is the only truth, this is the environment you’ve been building toward.
To apply, please either send me@mondrian-alpha.com an email, or respond to this advertisement.
C++ Engineer — Pushing the Speed of Light | Ultra-Low Latency Trading Systems employer: Mondrian Alpha
Contact Detail:
Mondrian Alpha Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land C++ Engineer — Pushing the Speed of Light | Ultra-Low Latency Trading Systems
✨Tip Number 1
Network like a pro! Attend industry meetups or tech conferences where you can rub shoulders with folks from the trading and tech world. You never know who might be looking for a C++ Engineer just like you!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those related to ultra-low-latency systems. This is your chance to demonstrate your expertise in C++ and performance optimisation.
✨Tip Number 3
Get involved in online communities! Join forums or groups focused on C++ development and low-latency trading. Engaging with others can lead to job leads and insider tips on openings.
✨Tip Number 4
Apply through our website! We’re always on the lookout for top talent. Make sure your application stands out by tailoring it to highlight your experience with nanosecond execution and custom kernel-bypass networking.
We think you need these skills to ace C++ Engineer — Pushing the Speed of Light | Ultra-Low Latency Trading Systems
Some tips for your application 🫡
Show Off Your Skills: Make sure to highlight your experience with C++ and any ultra-low-latency systems you've worked on. We want to see how you’ve tackled performance bottlenecks and what cool projects you've been part of!
Be Specific: When describing your past work, get into the nitty-gritty! Talk about the technologies you used, like DPDK or AVX-512, and how they contributed to your project's success. We love details that show your expertise.
Tailor Your Application: Don’t just send a generic application. Tailor it to our job description! Mention how your skills align with our needs, especially around nanosecond execution and lock-free concurrency. We appreciate when candidates do their homework.
Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of applications better and ensures you don’t miss out on any important updates from us!
How to prepare for a job interview at Mondrian Alpha
✨Know Your C++ Inside Out
Make sure you’re well-versed in modern C++ features, especially C++20/23. Brush up on template metaprogramming and constexpr, as these will likely come up during technical discussions. Be ready to demonstrate your understanding of how these features can optimise performance in ultra-low-latency systems.
✨Understand the Hardware
Familiarise yourself with CPU architecture and how it impacts performance. Knowing about cache hierarchies, speculative execution, and NUMA-aware design will give you an edge. Be prepared to discuss how you’ve tackled performance bottlenecks in past projects.
✨Benchmarking is Key
Have a solid grasp of profiling tools like perf and VTune. Be ready to share examples of how you’ve used data-driven approaches to optimise systems. This firm values evidence over theory, so come armed with metrics that showcase your successes.
✨Collaborate and Communicate
Since this environment thrives on collaboration, be prepared to discuss how you’ve worked alongside hardware specialists or other engineers in the past. Highlight your ability to merge software agility with hardware precision, as this will resonate well with their flat structure and team dynamics.
