Senior C++ High-Performance Engineer - Market Data

Luxoft; Greater London; On-site; GBP 103,000 - 148,000; Full time

Job summary

Luxoft is seeking a skilled C++ engineer to design and build high-performance, low-latency applications that process large volumes of real-time data. You will optimize from algorithms to networking and OS interaction and collaborate with trading and infrastructure teams.

The role focuses on delivering production-quality code with tests, profiling, and tuning to meet stringent performance goals in a fast-paced environment.

Qualifications

• Strong proficiency in modern C++ (C++17/20 or later).
• Hands-on experience with Market Data.
• Solid understanding of concurrency and synchronization (lock free / low lock patterns, atomics, memory models).
• Proven experience building performance critical, real time, or low latency systems (e.g., networking, trading systems).
• Strong knowledge of computer science fundamentals: data structures, algorithms, memory management, and optimization.
• Practical experience with Linux systems programming (sockets, epoll/select, threads, memory management, CPU affinity).
• Experience using profiling, benchmarking, and performance analysis tools (Perf, Valgrind, Flame Graphs).
• Proficiency with version control (Git) and standard build systems (CMake, Ninja).
• Excellent problem-solving skills and attention to detail; fast-paced environment.

Responsibilities

• Design, implement, and maintain high performance C++ services handling high message rates and low latency workloads.
• Optimize 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 to translate requirements into robust solutions.
• Write clean, production quality code with tests and documentation.
• Participate in code reviews and continuous improvement of engineering practices.

Skills

C++17/20

Market Data

Concurrency

Low Latency

CS fundamentals

Linux SysProg

Profiling Tools

Git/CMake

Problem Solving

Tools

Perf

Valgrind

Flame Graphs

CPU Profilers

Job description

Luxoft is seeking a skilled C++ engineer to design and build high-performance, low-latency applications that process large volumes of real-time data. You will optimize from algorithms to networking and OS interaction and collaborate with trading and infrastructure teams.

The role focuses on delivering production-quality code with tests, profiling, and tuning to meet stringent performance goals in a fast-paced environment.