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Senior Network and Security Engineer

London💼 Full-time🗓 2026-06-11 → 2026-07-31

Core

Designing, building, and supporting global network infrastructure (LAN, WAN, cloud) for critical trading platforms, ensuring high performance, resilience, and security.

Role type

Senior Network and Security Engineer

Builds

Global LAN, WAN, and cloud network infrastructure for trading platforms

Domain

Financial services / Trading technology

Deliverable

infrastructure

Required skills

Cisco ACI operations, Multicast networking, CCNP-level knowledge, Data centre and cloud network design, Cisco Catalyst and Nexus switch platforms

Preferred skills

Market Data network feeds support, SD-WAN technologies, Low-latency production networks experience, Cisco ASA and Meraki Wireless, Palo Alto firewalls

Technologies

Cisco ACI, Cisco Catalyst, Cisco Nexus, Palo Alto, Cisco ASA, Meraki Wireless

Responsibilities

Design and implement global network infrastructure, Monitor network performance and capacity, Implement new network services, Identify and remediate security risks, Maintain secure VPN connectivity, Perform BAU changes and troubleshooting on firewalls, Lead investigation and resolution of network incidents, Collaborate with internal teams to resolve connectivity issues, Maintain technical documentation

Seniority

Senior, hands-on IC

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