Senior Infrastructure Engineer

Sanderson Government & Defence; Hemel Hempstead; On-site; GBP 162,000 - 198,000; Full time

Job summary

Sanderson Government & Defence in Hemel Hempstead is seeking a Senior Infrastructure Engineer for a long-term, on-site programme. The role requires active UKSV DV clearance and sole British nationality.

You will maintain, enhance, and support secure infrastructure services underpinning defence operations, with potential four-day compressed hours. You will deliver infrastructure support across secure environments, manage Windows servers, AD, Hyper-V, and VMware, and work with stakeholders to

Qualifications

• Candidates must hold active UKSV DV Clearance and be a sole British national.
• The role is fully onsite in Hemel Hempstead with 5 days on-site work.
• Experience in secure or highly regulated environments is essential.

Responsibilities

• Deliver infrastructure support and engineering activities across secure Defence environments.
• Maintain and improve virtualised and physical server platforms.
• Support the ongoing management of enterprise Windows environments and core infrastructure services.
• Troubleshoot and resolve complex technical issues within important systems.
• Work alongside technical teams and stakeholders to implement infrastructure improvements and enhancements.
• Ensure services remain secure, resilient, and compliant with Defence and Government standards.
• Contribute to project delivery, system upgrades, and technology refresh activities.

Skills

VMware administration

Hyper-V environments

Windows Server technologies

Active Directory administration

Enterprise infrastructure support

Troubleshooting

Complex IT estates

Tools

MECM

SCCM

Linux / RHEL

McAfee

Job description

Senior Infrastructure Engineer
Hemel Hempstead - 5 days on site
£750 a day Inside IR35
Requires Active UKSV DV Clearance with sole UK nationality

About the Role

We are seeking an experienced Senior Infrastructure Engineer to join a long-term programme, you will become part of a highly secure team responsible for maintaining, enhancing, and supporting core infrastructure services that underpin vital defence operations.

This is an excellent opportunity for a DV-cleared infrastructure professional to contribute to nationally significant projects within a secure and demanding environment. The role is fully onsite in Hemel Hempstead, with potential flexibility to work compressed hours across four days.

Key Responsibilities

• Deliver infrastructure support and engineering activities across secure Defence environments.
• Maintain and improve virtualised and physical server platforms.
• Support the ongoing management of enterprise Windows environments and core infrastructure services.
• Troubleshoot and resolve complex technical issues within important systems.
• Work alongside technical teams and stakeholders to implement infrastructure improvements and enhancements.
• Ensure services remain secure, resilient, and compliant with Defence and Government standards.
• Contribute to project delivery, system upgrades, and technology refresh activities.

Essential Skills & Experience

Candidates should demonstrate strong experience across several of the following areas:

• VMware administration and support.
• Hyper-V environments.
• Windows Server technologies.
• Active Directory administration and management.
• Enterprise infrastructure support within secure or highly regulated environments.
• Strong troubleshooting and problem-solving capabilities.
• Experience working within complex IT estates.

Desirable Skills

Previous experience with any of the following would be advantageous:

• Microsoft Endpoint Configuration Manager (MECM).
• System Center Configuration Manager (SCCM).
• Linux and/or Red Hat Enterprise Linux.
• McAfee security products.
• Experience supporting Defence, Government, or National Security customers.

Security Requirements

Due to the sensitive nature of the programme, applicants must hold active UKSV DV Clearance and be a sole British national. Unfortunately, candidates without current DV clearance cannot be considered for this position.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.