Senior C++ Engineer - Real-Time, Low-Latency Systems

Luxoft; New York (NY); On-site; USD 140,000 - 200,000; Full time

Job summary

Luxoft in New York seeks a senior C++ engineer to design and build high‑performance, low‑latency applications that process large volumes of real‑time data. You will optimize across algorithms, data structures, networking, and OS interaction to reduce microseconds and increase throughput.

The role requires mastery of modern C++ (C++17/20+), Linux systems programming, and proven work on performance‑critical systems.

Qualifications

• Must have 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.
• Strong knowledge of CS 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, CPU/memory profilers).
• Proficiency with version control (Git) and standard build systems (CMake, Ninja).
• 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++ (C++17/20+)

Market Data experience

Concurrency and synchronization

Real-time / low-latency systems

Linux systems programming

Profiling & benchmarking

Git version control

CMake/Ninja build systems

Problem solving / detail oriented

Tools

Git

CMake

Ninja

Job description

Luxoft in New York seeks a senior C++ engineer to design and build high‑performance, low‑latency applications that process large volumes of real‑time data. You will optimize across algorithms, data structures, networking, and OS interaction to reduce microseconds and increase throughput.

The role requires mastery of modern C++ (C++17/20+), Linux systems programming, and proven work on performance‑critical systems.