Senior Infrastructure Engineer (Network)

Digital Waffle; Leicester; On-site; GBP 36,000 - 60,000; Full time

Job summary

Digital Waffle is seeking a Senior Infrastructure Engineer to maintain and upgrade a large enterprise network with a Cisco-first focus. You will work across BAU and projects, supporting Windows Server, Active Directory, DNS/DHCP, and VMware environments.

The role requires 5+ years of commercial experience, CCNA/CCNP level knowledge, ITIL practices, and PowerShell scripting. The team offers a competitive salary up to £60,000 with benefits.

Qualifications

• Minimum 5 years' commercial experience supporting enterprise infrastructure.
• Strong hands-on Cisco networking experience (Routing & Switching, MPLS, VRF) and CCNA/CCNP knowledge.
• Strong Microsoft technologies experience (Windows Server, Active Directory, Group Policy, DNS, DHCP, Microsoft 365).
• VMware administration experience and PowerShell scripting/automation.

Responsibilities

• Design, support and maintain enterprise Cisco network infrastructure.
• Configure and troubleshoot routing, switching, MPLS and VRF technologies.
• Administer Microsoft Windows Server environments including AD, DNS/DHCP and Group Policy; manage Microsoft 365.
• Administer VMware virtual infrastructure and support server migrations.
• Lead 3rd line support, projects and act as senior escalation point for networking and infrastructure issues.
• Produce technical documentation and follow ITIL best practices.

Skills

Cisco

VMWare

MS Suite

Job description

Salary: Up to £60,000 + Benefits

Key Skills:

• Cisco
• VMWare
• MS Suite

Are you an experienced Infrastructure Engineer with a passion for enterprise networking? Do you enjoy working in complex environments where networking sits at the heart of the infrastructure?

We're looking for a Senior Infrastructure Engineer to join a well-established organisation with a large-scale enterprise environment. This role is heavily focused on Cisco networking, while also requiring strong Microsoft infrastructure and VMware expertise to support the wider IT estate.

The Role

As a Senior Infrastructure Engineer, you'll be responsible for maintaining, supporting and improving a large enterprise network alongside the wider Microsoft infrastructure environment. You'll provide 3rd line support, lead technical projects and act as a senior escalation point for complex networking and infrastructure issues.

You'll work across both BAU support and project delivery, including network upgrades, server migrations, Microsoft infrastructure improvements, VMware upgrades and technology refreshes.

Key Responsibilities

• Design, support and maintain enterprise Cisco network infrastructure.
• Configure and troubleshoot routing, switching, MPLS and VRF technologies.
• Administer and support Microsoft Windows Server environments.
• Manage and maintain Active Directory, Group Policy, DNS and DHCP.
• Support Microsoft 365 services, including Exchange Online, Entra ID (Azure AD) and Intune where required.
• Administer VMware virtual infrastructure.
• Deliver infrastructure and network projects including server upgrades, migrations and platform improvements.
• Act as the senior technical escalation point for networking and infrastructure issues.
• Produce technical documentation and follow ITIL best practices.
• Minimum 5 years' commercial experience supporting enterprise infrastructure.
• Strong hands-on Cisco networking experience, including:
• Cisco Routing & Switching
• MPLS
• VRF
• CCNA and/or CCNP level networking knowledge (certification or equivalent commercial experience).
• Strong experience with Microsoft technologies, including:
• Windows Server
• Active Directory
• Group Policy
• DNS & DHCP
• Microsoft 365
• VMware administration experience.
• Good understanding of TCP/IP, VLANs, OSPF, BGP and network security principles.
• Experience working within large enterprise environments.
• Strong troubleshooting and problem-solving skills.
• PowerShell scripting and automation.
• Storage technologies (SAN/NAS).
• Backup solutions such as Veeam.
• Experience working within an ITIL environment.