Senior 3rd Line Infrastructure Engineer – On-Site UK

Trust Systems Ltd; Farnborough; On-site; GBP 55,000 - 75,000; Full time

Job summary

Trust Systems Ltd in Farnborough is seeking a Senior Infrastructure professional to join our on-site team. You will act as the final escalation point for severe incidents and drive root-cause analysis.

You will maintain and secure servers, virtualization platforms (VMware, Hyper-V, Nutanix), storage, and cloud environments, while planning migrations and technical changes. You will mentor junior staff and document SOPs.

Qualifications

• Advanced knowledge of Windows Server and hosting platforms.
• Advanced knowledge of Windows 11, VMware, Hyper-V and Nutanix support and administration.
• Advanced knowledge of Active Directory, Group Policies and Intune.
• Solid background of Cyber Security and patching fundamentals (experience of CrowdStrike desired).
• Solid understanding of networking fundamentals.
• Excellent communication and problem-solving skills.

Responsibilities

• Act as the final internal escalation point for severe or recurring incidents that 1st and 2nd line teams cannot fix, performing root cause analysis.
• Maintain, upgrade, and secure servers, virtualisation platforms (VMware, Hyper-V, Nutanix), storage arrays, and cloud environments.
• Plan, design, and implement technical changes and system migrations.
• Provide technical guidance to junior support staff and write clear standard operating procedures or knowledge base articles.

Skills

Windows Server

Windows 11

VMware

Hyper-V

Nutanix

Active Directory

Group Policies

Intune

Cyber Security

Patching fundamentals

Networking fundamentals

Communication

Problem solving

Tools

BPSS/SC security checks

Job description

Trust Systems Ltd in Farnborough is seeking a Senior Infrastructure professional to join our on-site team. You will act as the final escalation point for severe incidents and drive root-cause analysis.

You will maintain and secure servers, virtualization platforms (VMware, Hyper-V, Nutanix), storage, and cloud environments, while planning migrations and technical changes. You will mentor junior staff and document SOPs.