Senior HPC Network Engineer — Low-Latency Data Centre Architect

Hamilton Barnes ?

New York (NY)

Hybrid

GBP 340,000 - 416,000

Full time

6 days ago

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Job summary

Hamilton Barnes is seeking an experienced Senior Network Engineer to design, build, and scale high-performance network infrastructure for ultra-low latency trading environments. Location: New Yok Hybrid with very flexible arrangements.

You will design and deploy large-scale data centre and HPC networks, build high-performance, low-latency systems across global locations, and drive capacity planning, reliability, and automation initiatives while mentoring junior engineers.

Qualifications

10+ years' experience designing and supporting enterprise-scale or data centre networks.
Strong expertise across BGP, OSPF, VXLAN, spine-leaf architectures, and multicast.
Experience with high-performance switching platforms such as Arista, Cisco, NVIDIA/Cumulus, or SONiC.
Strong understanding of network architecture, capacity planning, and large-scale infrastructure design.
Experience using packet analysis tools such as Wireshark or tcpdump.
Exposure to network automation using Python, Ansible, or similar technologies.

Responsibilities

Design, deploy, and optimise large-scale data centre and HPC network environments.
Build and support high-performance, low-latency infrastructure across global locations.
Drive improvements around network scalability, performance, reliability, and capacity planning.
Automate network operations through scripting and tooling improvements.
Troubleshoot complex Layer 2/Layer 3 networking issues in highly distributed environments.
Develop technical documentation and contribute to engineering standards.
Mentor and support junior engineers while influencing future network strategy.