At a Glance
- Tasks: Design and implement high-performance C++ systems for trading infrastructure.
- Company: Join a leading global quantitative trading firm with a tech-first approach.
- Benefits: Competitive salary, hybrid work model, and opportunities for rapid career growth.
- Other info: Collaborate with a talented team in a dynamic, fast-paced environment.
- Why this job: Make a real impact on trading systems processing billions daily.
- Qualifications: Strong C++ skills and a passion for solving complex technical challenges.
Up to 300,000 total
Global Quantitative Trading Firm
London – Hybrid (4 days onsite / 1 remote)
Quant Capital is working with a technology-first trading firm to find a C++ Software Engineer to join a highly specialised team building real-time trading infrastructure. The team’s scope covers everything from market data processing and signal evaluation to order routing and execution—giving developers full ownership over performance-critical code. This is a low-latency, high-throughput environment where the software you write is deployed directly into production and contributes to daily trade volumes in the hundreds of billions.
Role Overview
You’ll work in a fast-moving team responsible for the full software lifecycle behind the firm’s core trading platform. In addition to building latency-sensitive code in C++, you’ll have the chance to work on adjacent systems like distributed storage platforms, high-performance compilers, and GPU/FPGA integrations. The team is highly technical, cross-functional, and trusted to solve hard problems autonomously.
Key Responsibilities
- Design and implement high-performance C++ systems used across trading infrastructure
- Work on projects ranging from real-time market data processing to order execution
- Optimise systems at the micro-architectural level (cache usage, CPU pipelines, memory layout)
- Contribute to the design of distributed or parallel computation frameworks
- Collaborate with researchers, infrastructure teams, and hardware specialists
- Write clean, maintainable, post-C++11 code and modernise existing components where needed
What You’ll Need
- Strong command of modern C++ and associated tooling
- Deep understanding of system internals: memory management, caching, paging, CPU execution pipelines
- Solid knowledge of algorithms, data structures, and performance trade-offs
- Experience designing complex systems intended for long uptime and high availability
- Familiarity with Linux systems and tooling is beneficial but not essential
- Comfortable working independently on technically challenging problems
- No finance background needed—just engineering fluency
Why Apply?
- Work on production systems that process hundreds of billions in trading volume daily
- Solve real performance problems—not proxy metrics or arbitrary benchmarks
- Blend low-level systems programming with high-level architecture and impact
- Build for internal use, with fast deployment cycles and immediate feedback
- Join a small, high-performance team with serious technical ownership
- Discretion guaranteed – we never share your profile without your explicit consent.
C++ SOFTWARE ENGINEER – TRADING SYSTEMS employer: Quant Capital
Quant Capital is an excellent employer for those looking to thrive in the fintech sector, offering a vibrant work culture that fosters innovation and collaboration. With substantial training and development opportunities, employees can enhance their skills while enjoying a flexible hybrid work model in the heart of London. Join us to be part of a forward-thinking team that values growth and cutting-edge technology.
