Lead Enterprise Systems Admin: VMware, Cloud & Security

Addition; Cheltenham; On-site; GBP 65,000 - 90,000; Full time

Job summary

Addition in Cheltenham is seeking an experienced IT infrastructure leader to guide enterprise systems, spanning VMware, Citrix, and cloud services. You will drive architecture decisions, administer complex environments, and collaborate with vendors to keep operations resilient.

The role requires leadership, hands-on troubleshooting, and a proactive approach to security and ISO standards, with UK travel and on-call duties as needed.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• Extensive professional experience in enterprise system administration and support.
• Willingness to travel within the UK and occasionally to EMEA or US offices.
• Ability to work flexibly, including on-call rotations.

Responsibilities

• Deliver advanced technical leadership across enterprise infrastructure.
• Administer complex systems and ensure stable operations.
• Collaborate with top vendors to maintain and enhance infrastructure.
• Support high-stakes projects and provide strategic recommendations.

Skills

VMware vSphere

Fiber Channel

Citrix XenApp/XenDesktop

Windows Server 2019/2022

Exchange

Office 365

SQL Server

Linux

Ansible

AD Federated Trusts

TCP/IP

DHCP

DNS

MPLS

SC clearance

ISO20000

ISO27001

ITIL

Agile

Scrum

AWS

Azure

Certificate Authorities

Education

Bachelor’s degree in Computer Science/IT

Job description

Addition in Cheltenham is seeking an experienced IT infrastructure leader to guide enterprise systems, spanning VMware, Citrix, and cloud services. You will drive architecture decisions, administer complex environments, and collaborate with vendors to keep operations resilient.

The role requires leadership, hands-on troubleshooting, and a proactive approach to security and ISO standards, with UK travel and on-call duties as needed.