Senior 3rd Line Infrastructure Engineer — On‑Site (UK)

Trust Systems Ltd; Farnborough; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Training opportunities

Competitive package

On-site work in Farnborough

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 complex incidents, manage servers and virtualization platforms, plan migrations, and mentor junior staff. A background in MSP or corporate IT and BPSS/SC checks are required.

You will work five days a week on-site, driving continuous improvement and contributing to security and networking strategies within a collaborative environment.

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

• Complex Troubleshooting: Act as the final internal escalation point for severe or recurring incidents.
• Infrastructure Management: Maintain, upgrade, and secure servers, virtualization platforms, storage arrays, and cloud environments.
• Project Delivery: Plan, design, and implement technical changes and system migrations.
• Mentorship & Documentation: Provide technical guidance to junior staff and write SOPs or knowledge base articles.
• Experience: Proven history in a tier-3 or senior infrastructure role within an MSP or corporate IT setting.

Skills

Windows Server

Windows 11

VMware

Hyper-V

Nutanix

Active Directory

Group Policies

Intune

Cyber Security

Patching

Networking basics

Communication

Tools

CrowdStrike

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 complex incidents, manage servers and virtualization platforms, plan migrations, and mentor junior staff. A background in MSP or corporate IT and BPSS/SC checks are required.

You will work five days a week on-site, driving continuous improvement and contributing to security and networking strategies within a collaborative environment.