Senior Network Architect – Low latency trading

Overview

In this role you will design, automate, and operate a cutting-edge, low-latency trading network. You will work within a high-performance team to ensure reliability across global infrastructure and proprietary hardware. You’ll drive improvements to performance, build observability, and collaborate with software and infra teams to raise operational efficiency. This is a mission-driven opportunity to shape the fastest trading network and contribute to a culture of rigor and knowledge sharing.

Pay / Benefits

• bonus
• highly competitive salary
• London office
• cutting-edge technology
• discretion and professional autonomy

Responsibilities

• Lead the design, configuration, and maintenance of global low-latency infrastructure and proprietary hardware.
• Identify and implement improvements to configurations, technologies, and processes to boost network performance.
• Provide hands-on support for high-performance wireless and wired networks.
• Operate and diagnose issues across the global network using monitoring and analysis tools.
• Document network processes, systems, and configurations for clarity.
• Design and deploy new monitoring and telemetry systems for greater visibility.
• Participate in critical network change and code reviews to drive continuous improvement.
• Collaborate with software and infrastructure teams to enhance internal tool stacks.
• Use automation to streamline repetitive tasks and daily network operations.

Key requirements

• 10+ years of experience with large-scale enterprise 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; multicast (IGMP, PIM) familiarity.
• CCIE certification.
• Linux proficiency across boot, services, files, processes, networking, and kernel.
• Experience deploying and operating monitoring frameworks (Cacti, Zabbix, Nagios, Prometheus, Tick stack).
• Solid firewall experience (Checkpoint, Fortigate, Palo Alto).
• Scripting skills in Python/Go or similar.
• Willingness to participate in rotating on-call schedule, including weekends.

• collaborative team player
• proactive problem solving
• strong communication
• low-latency network design
• Routing & Switching (BGP, OSPF, EIGRP)
• multicast protocols (IGMP, PIM)

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