Senior Network Architect – HFT

Overview

In this role you will shape and secure the firm’s global, low-latency network infrastructure, driving performance and reliability for its high-frequency trading environment. You collaborate with software and infrastructure teams to design, automate, and operate cutting-edge networks, with a focus on speed, visibility, and resilience. You will lead critical design and change activities, and contribute to scalable tooling and telemetry. This is a chance to influence how the fastest trading network operates at scale and to work with top-tier, committed professionals.

Pay / Benefits

• bonus

Responsibilities

• Lead the design, configuration, and maintenance of the global low-latency infrastructure and proprietary hardware platforms
• Identify and implement improvements to configurations, technologies, and procedures to boost network performance
• Provide hands-on operational support for high-performance wireless and wired networks
• Utilize monitoring and analysis tools to rapidly diagnose and resolve network issues across the global topology
• Document network processes, systems, and configurations for clarity and consistency
• Design and deploy new monitoring and telemetry systems to improve visibility
• Participate in network change and code review processes to continuously improve the environment
• Collaborate with software and infrastructure teams to enhance internal toolchains and productivity
• Use automation to streamline repetitive tasks and daily network operations
• Manage on-call responsibilities on a rotating basis, including weekends

Key requirements

• 10+ years of experience with large-scale or low-latency networks
• Experience managing large-scale networks, infrastructure, or software projects
• Proven ability to produce network design and architecture documents
• Deep knowledge of Internet, WAN, LAN, and data center architectures
• Strong routing and switching fundamentals with BGP, OSPF, or EIGRP; familiarity with multicast (IGMP, PIM)
• CCIE
• Linux proficiency across boot, services, files, processes, networking, and kernels
• Ability to deploy and operate monitoring frameworks (Cacti, Zabbix, Nagios, Prometheus, Tick)
• Solid firewall experience (Checkpoint, Fortigate, Palo Alto)
• Scripting in Python/Go or similar
• Willingness to participate in rotating on-call schedule, including weekends

• Collaborative, cross-functional communication
• Proactive problem solving
• Attention to detail and thorough documentation
• Low-latency network design
• BGP, OSPF, EIGRP routing
• Multicast (IGMP, PIM)

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