Infrastructure & Security Engineering Lead

Sanderson Government & Defence; Cheltenham; Sur place; GBP 70 000 - 90 000; Plein temps

Avantages offerts par ce poste

6% employer pension contribution

26 days annual leave

Private Medical Insurance

Training & Development Budget

Professional training leave

Résumé du poste

Sanderson Government & Defence in Cheltenham seeks an Infrastructure & Security Engineer to own internal IT infrastructure, security operations, and business systems. You will combine cloud administration, security tooling, and networking to drive secure, resilient platforms supporting cyber research activities.

You will lead projects, manage Windows/Linux endpoints, Microsoft 365, AWS, and security tooling. Join a small, autonomous team focused on continuous improvement and compliance.

Qualifications

• Strong fundamentals in Windows and Linux administration and security.
• Experience with Microsoft 365, Azure AD/Entra ID, and Intune.
• Knowledge of AWS infrastructure, networking, and security tooling.
• Proactive security mindset with incident response and hardening practices.

Responsabilités

• Maintain and improve core infrastructure for security, resilience, and efficiency.
• Lead infrastructure projects from concept to implementation within a small team.
• Oversee cloud, security operations, networking, and compliance activities.
• Coordinate penetration testing and security improvement programmes.
• Own backup, disaster recovery, and business continuity processes.
• Drive Cyber Essentials / Cyber Essentials Plus certification efforts.
• Maintain documentation, asset management, and IT governance.

Connaissances

Windows and Linux administration

Microsoft 365 and Azure AD / Entra ID

Intune endpoint management

AWS cloud infrastructure

Networking and firewall administration

Vulnerability management

Identity and access management

Backup and disaster recovery

Cyber Essentials compliance

Infrastructure automation and security

Outils

AWS

Microsoft 365

Azure AD / Entra ID

Intune

Description du poste

Infrastructure & Security Engineering Lead

Location: On-site (Cheltenham - Onsite)
Salary: £70,000 - £90,000 + Bonus + Excellent Benefits
Security Clearance: Must be eligible and willing to undergo UK Security Clearance

Overview

We're supporting an innovative research and development organisation in the search for an Infrastructure & Security Engineer to take ownership of its internal IT infrastructure, security operations, and business systems.

This is a unique opportunity to work in a highly technical environment where you'll combine infrastructure engineering, cloud administration, security operations, networking, compliance, and business IT. You'll play a key role in shaping the future of the organisation's internal platforms while delivering projects that directly support cutting-edge cyber security research activities.

If you're someone who enjoys solving complex technical challenges, taking ownership of systems, and continuously learning new technologies, we'd love to hear from you.

The Role

As the Infrastructure & Security Engineer, you'll be responsible for maintaining and improving the organisation's core infrastructure, ensuring systems remain secure, resilient, and efficient.

Working within a small, highly skilled team, you'll have significant autonomy and the opportunity to lead infrastructure projects from concept through to implementation.

This role is ideal for someone with a strong systems administration background who is looking to broaden their exposure across cloud, security, networking, and emerging technologies.

Key Responsibilities

• Manage Windows and Linux endpoints, including provisioning, patching, compliance, and endpoint management
• Administer Microsoft 365, identity management, SSO integrations, certificates, and user lifecycle processes
• Operate and enhance security tooling covering monitoring, vulnerability management, endpoint security, and remediation
• Coordinate external penetration testing activities and security improvement programmes
• Maintain and develop AWS cloud infrastructure and supporting business systems
• Own backup, disaster recovery, and business continuity processes
• Lead Cyber Essentials and Cyber Essentials Plus certification activities
• Maintain infrastructure documentation, asset management, and IT governance processes
• Identify and deliver improvements that enhance security, resilience, and operational efficiency

Project Work

You’ll have the opportunity to lead and contribute to a variety of innovative projects, including:

• Designing and implementing services for standalone and isolated networks
• Building and deploying centralised authentication solutions
• Developing and maintaining self-hosted LLM infrastructure
• Designing secure environments to support advanced research activities
• Implementing new infrastructure and security tooling
• Driving continuous improvement across cloud, infrastructure, and operational platforms

What We're Looking For

We understand that no candidate will tick every box. We're more interested in strong technical fundamentals, a proactive mindset, and a willingness to learn.

Experience in some of the following areas would be highly beneficial:

• Windows and Linux system administration
• Microsoft 365 and Azure AD / Entra ID
• Endpoint management tools such as Microsoft Intune
• AWS cloud infrastructure
• Networking and firewall administration
• Vulnerability management and endpoint security
• Identity and access management
• Backup, disaster recovery, and business continuity planning
• Security compliance frameworks, including Cyber Essentials
• Infrastructure automation and scripting
• General cyber security best practices

What You'll Bring

• Strong troubleshooting and problem-solving skills
• A hands-on approach and willingness to take ownership
• Curiosity and enthusiasm for learning new technologies
• A passion for security and secure infrastructure design
• Excellent communication and stakeholder management skills

Package & Benefits

• Salary: £70,000 - £90,000 depending on experience
• Bonus: Typically 10-15% annually
• Pension: 6% employer contribution with salary sacrifice options
• Annual Leave: 26 days plus the option to buy or sell up to 5 days
• Private Medical Insurance
• Dedicated Training & Development Budget
• Paid time for professional training, certifications, conferences, and continuous 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.