Millennium
Senior High Frequency C++ Engineer
$175K–$250K
New York, New York · On-site · Senior · Full-time · Posted Feb 24, 2026
- Experience
- 5+ years with a well-regarded HFT group delivering production-grade, low-latency systems.
About the job
Build and operate low-latency trading and market-data infrastructure for high-frequency trading, collaborating with quantitative researchers and supporting production systems.
What you'll do
- Develop low-latency components for order entry, market data, exchange simulation, feature extraction, and strategy containers.
- Build tools and services to help trading teams onboard, and provide Level 2 production support.
- Work with architects, quantitative researchers, business stakeholders, and other teams to deliver platform-aligned solutions.
What they ask for
- 5+ years with a well-regarded HFT group delivering production-grade, low-latency systems.
- Production expertise in C++ and Python for low-latency systems.
- Deep familiarity with OS tuning, networking stacks, user-space drivers, and kernel-bypass patterns.
- Strong understanding of the HFT quantitative research pipeline and experience with HPC grids for research and production workloads.
Nice to have
- Cloud experience with AWS or GCP.
- Ability to influence outcomes across teams; potential to provide technical leadership and manage a small team.
Pay
$175,000 to $250,000 USD base salary
Tools
C++, Python, AWS, GCP, HPC grids
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