C++ Engineer

We are looking for a C++ engineer to design and build high-performance, low-latency applications that process large volumes of real-time data. You will work on systems where microseconds and throughput matter, optimising every layer from algorithms and data structures to networking and OS interaction.

Key Responsibilities

• Design, implement, and maintain high-performance C++ services handling high message rates and low-latency workloads.
• Optimise existing components for latency, throughput, and CPU/memory efficiency.
• Develop and tune networking, messaging, and I/O layers to handle large data volumes reliably.
• Profile and debug performance issues at application, OS, and network levels.
• Collaborate with quantitative, trading, and infrastructure teams (or analogous business/tech teams) to translate requirements into robust technical solutions.
• Write clean, production-quality code with appropriate tests and documentation.
• Participate in code reviews, design discussions, and continuous improvement of engineering practices.

Required Qualifications

• Strong proficiency in modern C++ (C++17/20 or later) 5+ years of experience
• AND must have
  • KDB / Q Experience for large market data
  • Modern data analysis with pytorch, pandas and modern tooling including Apache arrow
  • Familiar with basics statistics as applied to financial research
• Proven experience building performance-critical, real-time, or low-latency systems (e.g., networking, trading systems, telemetry, gaming engines, or similar).
• Strong knowledge of computer science fundamentals: data structures, algorithms, memory management, and optimization.
• Experience using profiling, benchmarking, and performance analysis tools (e.g., perf, valgrind, flame graphs, CPU/memory profilers).
• Proficiency with version control (Git) and standard build systems (CMake, Ninja, etc.).
• Excellent problem-solving skills and attention to detail; ability to work in a fast-paced environment.

Preferred Qualifications

• Experience with kernel bypass or user-space networking technologies (e.g., DPDK, RDMA, VMA, Solarflare/OpenOnload) - helpful but not required.
• Familiar with AI productivity-enhancing coding tools
• Experience in financial markets, market data distribution, order routing, or exchange connectivity.
• Experience with monitoring/telemetry for high-performance systems (latency histograms, throughput metrics, SLAs).
• Familiarity with scripting languages (e.g., Python, Bash) for tooling and automation.

Personal Attributes

• Obsessed with performance, measurement, and data-driven optimisation.
• Comfortable owning features end-to-end and operating in a production environment.
• Clear communicator who can work closely with both technical and non-technical stakeholders.
• Proactive, self-directed, and able to thrive in a highly iterative environment.