Senior Network Engineer - Low Latency Trading

New York, NY, United States The Networks team designs, builds, and maintains all the communications infrastructure that supports our high-capacity, low-latency trading and data research environments, operating 24/7 across over 25 countries and 100 locations. We are seeking a Senior Network Engineer with experience in designing and managing large environments to meet the high-performance and availability needs of a leading algorithmic trading firm in global financial markets. This role requires both project management and deep technical expertise. Collaborating with some of the brightest minds in our industry, you will be responsible for product selection, design, routing configuration, and troubleshooting. You will work closely with our Systems and Trading Operations teams, as well as other departments at HRT, to build, manage, and monitor our low-latency trading network. You will have broad responsibilities with the freedom to analyze and solve problems, directly impacting our worldwide operations. We seek someone passionate about technology and excited about tackling big-picture problems. You will work on diverse projects to enhance the performance and capacity of our global trading and research platforms, contributing to both strategic planning and the technical details of our network architecture. Qualifications BS in Computer Science, Electrical Engineering, or related IT field 5-10 years of relevant experience, preferably in low-latency and high-frequency trading environments Deep understanding of common Layer 2 and Layer 3 network protocols and best practices; working knowledge of OSPF, BGP, PIM, IGMP Experience managing Arista, Cisco, and other networking devices daily Familiarity with low-latency microwave networks and optical transmission systems, such as Adva and Ciena, is desirable Experience designing enterprise networks, capacity planning, and full lifecycle project management Proficiency with packet decoding and analysis tools like tcpdump and Wireshark Excellent communication skills, able to simplify complex issues and produce effective technical documentation Experience with Unix/Linux command line utilities and networking stack Strong troubleshooting skills across a range of networking issues, including LAN problems, multicast data distribution, and global WAN Understanding of power consumption and cooling in data centers Knowledge of fiber optics and cabling standards, with the ability to evaluate specifications and recommend purchases Willingness to solve small technical problems in the field Strong collaboration skills and openness to admitting mistakes Familiarity with firewalls (Cisco, Palo Alto, Fortinet), VPNs, and NAT Experience with configuration management tools like Ansible or Salt is desirable Knowledge of Python, Prometheus, Grafana, ELK, GitHub is desirable Familiarity with public cloud networks such as AWS, GCP, Azure is desirable The estimated base salary range for this position is $150,000 to $250,000 annually, commensurate with skills and experience. The role also offers discretionary performance bonuses and a competitive benefits package. Culture Hudson River Trading (HRT) applies a scientific approach to trading financial products, building one of the world's most advanced computing environments for research and development. Our researchers lead innovation in algorithmic trading.

We welcome diverse expertise—mathematics, computer science, physics, engineering, media, and tech. We are a community of self-starters motivated by automation and innovation across all organizational areas—from trading to operations to recruiting. We value openness, transparency, and great ideas from all team members. At HRT, colleagues are friends, whether sharing a meal, playing games, or coding together. We foster a culture of togetherness beyond our office walls.

If you feel you belong at HRT, our goal is to assemble the best team and create a workplace where everyone is valued. We are proud of our diversity and global presence, and we are an equal opportunity employer, welcoming applicants from all backgrounds.

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