Senior C++ Developer, Market Data

Salary: $140,000 - 200,000 per year Requirements:

• Strong proficiency in modern C++ (C++17/20 or later) and hands-on experience with market data.
• Solid understanding of concurrency and synchronization, including lock-free or low-lock patterns, atomics, and memory models.
• Experience building performance-critical, real-time, or low-latency systems, such as networking, trading, telemetry, or gaming systems.
• Strong computer science fundamentals, including data structures, algorithms, memory management, and optimization.
• Practical Linux systems programming experience, including sockets, epoll/select, threading, memory management, and CPU affinity.
• Experience with profiling, benchmarking, and performance analysis tools such as perf, Valgrind, flame graphs, and CPU or memory profilers.
• Proficiency with Git and build systems such as CMake or Ninja.
• Strong problem-solving skills, attention to detail, and ability to work in a fast-paced environment.
• Experience with kernel-bypass or user-space networking technologies such as DPDK, RDMA, VMA, or Solarflare/OpenOnload is an advantage.
• Experience in financial markets, market data distribution, order routing, or exchange connectivity is an advantage.
• Familiarity with market data protocols such as FIX, MDP, ITCH, or proprietary exchange feeds is a plus.
• Experience with multicast, low-latency networking, and clock synchronization such as PTP is a plus.
• Exposure to hardware-aware optimization, including NUMA, cache optimization, SIMD, or CPU pinning, is beneficial.
• Experience monitoring high-performance systems using latency histograms, throughput metrics, or SLAs is beneficial.
• Familiarity with Python or Bash for tooling and automation is beneficial.
• Knowledge of KDB+ or experience analyzing data with Python tools such as PyTorch, pandas, or Arrow is beneficial.

• Design, build, and maintain high-performance C++ services for high message rates and low-latency workloads.
• Improve existing components for latency, throughput, and CPU and memory efficiency.
• Develop and tune networking, messaging, and I/O layers to reliably process large data volumes.
• Profile and troubleshoot performance issues across application, operating system, and network layers.
• Work with our quantitative, trading, and infrastructure teams—or equivalent business and technology teams—to turn requirements into robust technical solutions.
• Write clean, production-quality code with appropriate tests and documentation.
• Take part in code reviews, design discussions, and ongoing improvements to our engineering practices.

• Bash
• Git
• Hardware
• Linux
• Network
• PyTorch
• Python
• RDMA
• pandas
• C++

More:

We are seeking a C++ engineer to build high-performance, low-latency applications that process large volumes of real-time data. The role focuses on optimizing systems at every level, from algorithms and data structures to networking and operating system interactions, where throughput and microsecond-level performance matter. Compensation for the New York City position is $140,000–$200,000 gross per year, based on interview results.

last updated 41 week of 2026