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About the Role
Hudson River Trading (HRT) is seeking an Ultra-Low Latency Network Architect to build, test, and optimize our global high-frequency trading infrastructure. This role involves leading hardware evaluation and lab benchmarking, analyzing network data, and collaborating with engineering teams to achieve single nanosecond network performance.
Responsibilities
- Establish and operate a dedicated network testing lab for hardware evaluation and benchmarking.
- Design automated benchmark frameworks using traffic generators to simulate, measure, and validate protocols.
- Build Python pipelines to process, analyze, and visualize high-volume packet captures and telemetry data.
- Develop tools to automate lab testing, parse network logs, and generate latency distribution reports.
- Architect and maintain low latency trading networks across global exchange colocation sites.
- Optimize trading network signals over wireless low-latency backhaul networks.
- Benchmark performance for embedded network components like network adapters and network co-processors.
- Oversee PTP (IEEE 1588v2) and White Rabbit time synchronization systems.
- Design and maintain large-scale L2/L3 architectures, fine-tuning BGP, OSPF, and PIM-SSM/IGMP multicast.
- Stay current with emerging low-latency networking technologies and evaluate new solutions.
Requirements
- 10+ years designing and operating ultra-low latency networks in HFT, market making, or quantitative fund environments.
- Knowledge of exchange colocation, market data feeds, and order routing protocols (FIX, OUCH, ITCH) is essential.
- Advanced Python skills using libraries like pandas, numpy, or pyarrow for data analysis.
- Hands-on experience building network testing labs, using hardware traffic generators (Spirent/Ixia), and packet capture tools.
- Expertise with Arista (7130 series), Cisco (Nexus 3550/3548), LDA L1 switches, AMD Solarflare, and NVIDIA Mellanox hardware.
- Familiarity with FPGA driven low latency applications or custom accelerator cards.
- Deep knowledge of BGP/OSPF, Linux network stack tuning, PTP (IEEE 1588), White Rabbit, PIM-SSM multicast, and large scale L2/L3 topologies.
- Proficiency with Ansible, SQL, and Python network automation tools (e.g., Scapy, Netmiko, AsyncIO).
- Experience with observability stacks such as Victoriametrics, Prometheus, Grafana, and Docker.
Skills
- Python
- Pandas
- NumPy
- PyArrow
- BGP
- OSPF
- PTP (IEEE 1588)
- White Rabbit
- PIM-SSM
- IGMP
- FIX
- OUCH
- ITCH
- Ansible
- SQL
- Scapy
- Netmiko
- AsyncIO
- Docker
- Data Analysis
- Network Architecture
- Network Engineering
- Performance Engineering
- Hardware Evaluation
- Lab Benchmarking
- Packet Capture Analysis
- Telemetry Analysis
- Latency Analysis
- Kernel Bypass
- FPGA
- SmartNICs
- High-Speed Transceivers
Location
- Global
Work Type
- Full-time
Experience Level
- 10+ years
Salary/Compensations
- $200,000 - $300,000 USD per year
Benefits
- Discretionary performance-based bonuses
- Competitive benefits package
About the Company
- Hudson River Trading (HRT) applies a scientific approach to trading financial products, utilizing a sophisticated computing environment for research and development.
- HRT fosters a community of self-starters motivated by cutting-edge automation across all organizational functions.
- The company values openness, transparency, and great ideas from all employees.
- HRT promotes a culture of togetherness, extending beyond the office environment.
- HRT aims to bring the best people together to achieve great work in a valued environment.
- HRT is proud of its diverse staff and benefits from varied and unique perspectives across its global offices.
Equal Opportunity
- HRT is an equal opportunity employer.
- HRT welcomes a variety of expertise and values diversity.