Senior C++ Developer (with Low-Latency experience) jobs in United States
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Luxoft · 2 days ago

Senior C++ Developer (with Low-Latency experience)

Luxoft is seeking a Senior C++ Developer with expertise in low-latency applications. The role involves designing and building high-performance C++ services that process large volumes of real-time data, while optimizing for latency and throughput.

AutomotiveConsultingInformation ServicesInformation TechnologyOutsourcingService IndustrySoftware
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H1B Sponsor Likelynote
Hiring Manager
Alina Vasitynska
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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 (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

Qualification

Modern C++ (C++17/20)ConcurrencySynchronizationPerformance critical systemsLinux systems programmingProfilingPerformance analysisVersion control (Git)Scripting languages PythonScripting languages BashProblem-solving skillsAttention to detailFast-paced environment

Required

Strong proficiency in modern C++ (C++17/20 or later)
Solid understanding of concurrency and synchronization (lock free / low lock patterns, atomics, memory models, etc.)
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

Preferred

Experience with kernel bypass or user space networking technologies (e.g., DPDK, RDMA, VMA, Solarflare/OpenOnload) - helpful but not required
Experience in financial markets, market data distribution, order routing, or exchange connectivity
Familiarity with common market data protocols (e.g., FIX, MDP, ITCH, proprietary exchange feeds) is a plus
Experience with multicast, low latency networking, and clock synchronization (e.g., PTP)
Exposure to hardware aware optimization (NUMA, cache optimization, vectorization/SIMD, CPU pinning)
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

Company

Luxoft is an IT company that works globally to give customers software development, product engineering, and consulting.

H1B Sponsorship

Luxoft has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (37)
2024 (31)
2023 (34)
2022 (34)
2021 (28)
2020 (26)

Funding

Current Stage
Public Company
Total Funding
$102.4M
Key Investors
VTB Capital Investment Management
2019-01-07Acquired
2013-12-13Post Ipo Equity· $42.4M
2013-06-26IPO

Leadership Team

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James Hopson
CTO Mobile and Network Solutions
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Company data provided by crunchbase