Infrastructure Security Engineer - DV Eligible - Perm

Sanderson Government & Defence; United States; Remote; USD 79,000 - 119,000; Full time

Benefits offered by this job

Discretionary bonus

Pension

Annual leave 26 days

Private medical insurance

Job summary

Sanderson Government & Defence is seeking an Infrastructure Security Engineer (Perm, DV eligible) to own internal IT infrastructure, security operations and corporate systems. The role is on-site in Cheltenham with some future WFH potential, requiring UK security clearance through DV.

You will lead infrastructure improvements and help shape secure platforms and services for a small cyber-security R&D company.

Qualifications

• Solid foundation in systems administration and IT infrastructure.
• Strong troubleshooting and analytical skills.
• Interest in cyber security and secure infrastructure practices.

Responsibilities

• Manage Windows and Linux endpoints and device provisioning, patching, and compliance.
• Administer Microsoft 365, identity management, SSO, and user lifecycle processes.
• Operate and improve security tooling, monitor threats, and coordinate external penetration testing.
• Maintain and develop AWS infrastructure, office networking, and business IT systems.
• Own backup, disaster recovery, and business continuity processes.

Skills

Systems administration

IT infrastructure

Troubleshooting

Cyber security

Cloud infrastructure

AWS

Microsoft Intune

Fleet management

Microsoft 365

Endpoint management

Tools

Microsoft Intune

Fleet

AWS

Office networking

VoIP

Job description

Infrastructure Security Engineer - Perm - DV Eligible:

• Location: Cheltenham
• Days On-Site: 5 (Scope for some WFH in the future)
• Clearance: DV (Preferable) but must be eligible to go through DV.
• Salary: £60,000 - £90,000 + Benefits

Reason for role: Highly technical specialist security organisation are looking to bring someone in to own IT and Infrastructure security across the business, supporting specialist Software team.

We are looking for an Infrastructure & Security Engineer to take ownership of our internal IT infrastructure, security operations and corporate systems. This is a broad, hands-on role within a small cyber-security R&D company, encompassing endpoint management, cloud infrastructure, networking, compliance and business IT. As our environment continues to evolve, you'll be expected to lead infrastructure improvement projects and help shape the future of our internal platforms and services.

About the role

This is a varied role, and we don't expect candidates to have experience in every technology or responsibility listed below. Instead, we're looking for someone with a solid foundation in systems administration and IT infrastructure, strong technical problem-solving skills, and a genuine curiosity to learn.

In particular, we value:

• Taking ownership of problems and seeing them through to resolution.
• The desire to learn unfamiliar technologies and processes.
• Strong troubleshooting and analytical skills.
• An interest in cyber security and secure infrastructure practices.

This is an on-site role, and will require the successful applicant to go through the UK security clearance process.

Core Responsibilities

• Manage Windows and Linux endpoints, including device provisioning, configuration,patching, compliance and endpoint management using platforms such as Microsoft Intune and Fleet.
• Administer Microsoft 365, identity management, SSO, integration's, certificates and user-life-cycle processes.
• Operate and improve security tooling, including monitoring, vulnerability management,endpoint security and remediation activities, while coordinating external penetration testing.
• Maintain and develop the company's AWS infrastructure, office networking, standalone research networks and supporting business IT systems, including VoIP and meeting room technology.
• Own backup, disaster recovery and business continuity processes, ensuring backup integrity is regularly tested and recovery procedures remain effective.
• Lead Cyber Essentials and Cyber Essentials Plus certification activities, maintain infrastructure documentation and ensure IT governance and asset lifecycle processes are followed.
• Identify, plan and deliver infrastructure improvements that enhance security, resilience and operational efficiency.

Infrastructure Improvement Projects

Examples of projects you may lead include:

• Designing and implementing services for standalone networks.
• Designing and implementing centralised authentication systems for standalone networks.
• Building and maintaining self-hosted LLM servers.
• Identifying and delivering improvements to the company's infrastructure, security and operational tooling.
• Helping to build some interesting & unusual setups to support our research activities.

Benefits

• Discretionary bonus: Typically 10-15% of salary, depending on company and individual performance.
• Pension: 6% employer contribution, 6-12% personal contribution, via salary sacrifice
• Annual leave: 26 days, buy or sell up to 5 days per year
• Private medical insurance including dental cover
• Parking close to the office
• Training and development - an annual budget plus paid time for courses and
• conferences. We expect you to hit unfamiliar technology in this role and we will fund you learning.

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.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.