Senior C++ Engineer: High-Performance, Low-Latency

Luxoft; Miami (FL); On-site; USD 140,000 - 200,000; Full time

Job summary

Luxoft is seeking a C++ engineer to design and build high performance, low latency applications that process real time data. You will optimize algorithms, data structures, networking and OS interactions to minimize microseconds and maximize throughput.

Responsibilities include implementing scalable C++ services, profiling, and collaborating with trading and infrastructure teams. The role demands strong C++17+/20+ skills, Linux systems programming, and experience with market data and performance

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, telemetry, gaming engines, or similar).
• 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, etc.).
• 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.

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 technical solutions.
• Write clean, production quality code with appropriate tests and documentation.
• Participate in code reviews, design discussions, and continuous improvement of engineering practices.

Skills

Modern C++

Market Data

Concurrency

Low latency

Linux

Profiling tools

Git & CMake

Ninja

Tools

Perf

Valgrind

Ninja

CMake

Flame graphs

Job description

Luxoft is seeking a C++ engineer to design and build high performance, low latency applications that process real time data. You will optimize algorithms, data structures, networking and OS interactions to minimize microseconds and maximize throughput.

Responsibilities include implementing scalable C++ services, profiling, and collaborating with trading and infrastructure teams. The role demands strong C++17+/20+ skills, Linux systems programming, and experience with market data and performance