Network Engineer

About VIRTUS

VIRTUS Data Centres is the UK’s fastest-growing data centre provider. We own, design, build, and operate some of the most energy-efficient, flexible, and secure data centres in Europe.

VIRTUS Data Centres is the UK’s fastest-growing data centre provider. We own, design, build, and operate some of the most energy-efficient, flexible, and secure data centres in Europe.

In 2023, we announced our expansion into continental Europe, starting with Berlin and Milan, with plans to grow further across the region.

At VIRTUS, we aim to be a positive force in the fourth industrial revolution—delivering innovative solutions while staying firmly rooted in our core values:
Clarity & Quality, Accountability, Customer Commitment, Purposeful Innovation, and Capability & Growth.

VIRTUS is seeking an experienced Network Engineer with strong Cisco, switching, routing, firewall, segmentation, and data centre networking experience to support the design, deployment, operation, and continuous improvement of secure enterprise and production network infrastructure across multiple sites.

The engineer will operate in a fast paced, critical infrastructure environment and must be capable of working independently, on site, and across multiple technology domains, collaborating with internal teams and third party vendors to deliver reliable and secure network services.

• Build, configure, and maintain enterprise and data centre network infrastructure, including switches, routers, and firewalls.
• Support lifecycle management activities including upgrades, patching, and hardware replacement, ensuring alignment with supported standards and vendor best practices.
• Strong troubleshooting capability across switching, routing and connectivity issues in complex, multi-site environments.

• Implement and maintain secure network configurations, including VLANs, segmentation between corporate and production environments, and access control policies.
• Support the application of cyber security controls across the network estate, including firewall rules, secure remote access, and monitoring integration.

• Perform day‑to‑day network activities including switch configuration, routing updates, VLAN provisioning, and network integrity checks.
• Troubleshoot complex network issues across multiple sites, coordinating with internal teams and third‑party providers where required.

• Support the maintenance of physical and virtual server infrastructure, including routine health checks, capacity monitoring, firmware updates, operating system patching, and lifecycle management activities.
• Undertake planned maintenance activities in line with change control processes, ensuring appropriate testing, backup validation, rollback planning, and post-maintenance verification are completed.

• Configure, monitor, and maintain backup schedules for relevant physical and virtual server infrastructure, ensuring backup policies are aligned to agreed recovery point objectives (RPOs), recovery time objectives (RTOs), retention requirements, and operational risk priorities.
• Perform and evidence regular backup and restore testing, including validation of backup integrity, restoration procedures, recovery sequencing, and post-restore checks to confirm services can be recovered within agreed RPO and RTO targets.

• Support network & server monitoring platforms to ensure visibility of performance, availability, and capacity across the estate.
• Analyse network & server performance trends and implement improvements to optimise reliability and resilience.

• Work with internal stakeholders to deliver network changes required for infrastructure upgrades, new site deployments, and system integrations.
• Participate in change management processes, ensuring all changes are planned, tested, and documented appropriately.

• Engage with network vendors and service providers to support delivery, troubleshooting, and escalation of…