Global Trading Network Engineer - Automation & Ops

Referment; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Referment is partnering with a leading technology-driven investment firm to hire a Network Engineer to join its global Infrastructure team in Central London. This role centers on designing, building, and supporting a high-performance network that underpins trading platforms and the wider tech estate.

You'll work in a lean, collaborative environment, tackle complex infrastructure challenges, and take ownership of core connectivity, security, automation, and integration with Windows and Linux

Qualifications

• 5+ years of experience in Network/Infrastructure Engineering.
• Strong understanding of TCP/IP, VLANs, VPNs, DNS, DHCP, routing and enterprise networking concepts.
• Hands-on experience with Cisco networking technologies.
• Experience scripting/automation with Python, PowerShell, Bash, or similar.
• Experience supporting Windows and Linux server environments.

Responsibilities

• Design, implement, and support the firm's enterprise network infrastructure.
• Manage and optimise switching, routing, firewalls, VPNs, wireless networking, and core connectivity.
• Monitor, troubleshoot, and resolve complex network and infrastructure issues.
• Support and improve network performance, resilience, and availability across global environments.
• Work closely with infrastructure and engineering teams on new deployments, upgrades, and technology initiatives.
• Automate operational tasks using scripting and infrastructure tooling where appropriate.
• Support Windows and Linux server environments as part of the wider infrastructure team.
• Contribute to the ongoing evolution of the firm's infrastructure architecture and operational best practices.

Skills

Networking concepts

Scripting

Tools

Cisco networking

Python

PowerShell

Bash

Job description

Referment is partnering with a leading technology-driven investment firm to hire a Network Engineer to join its global Infrastructure team in Central London. This role centers on designing, building, and supporting a high-performance network that underpins trading platforms and the wider tech estate.

You'll work in a lean, collaborative environment, tackle complex infrastructure challenges, and take ownership of core connectivity, security, automation, and integration with Windows and Linux