About this role
Salary: £90,000 - 90,000 per year
Requirements
- Solid foundation in systems administration and IT infrastructure
- Strong technical problem-solving, troubleshooting and analytical skills
- Curiosity and willingness to learn unfamiliar technologies and processes
- Interest in cyber security and secure infrastructure practices
- Must be eligible to undergo the UK security clearance process; DV clearance is preferable
- Willingness to work on-site five days per week initially
Responsibilities
- Manage Windows and Linux endpoints, including provisioning, configuration, patching, compliance and endpoint management using platforms such as Microsoft Intune and Fleet
- Administer Microsoft 365, identity management, single sign-on, integrations, certificates and user lifecycle processes
- Operate and improve security tooling, including monitoring, vulnerability management, endpoint security and remediation, and coordinate external penetration testing
- Maintain and develop our AWS infrastructure, office networking, standalone research networks and business IT systems, including VoIP and meeting room technology
- Own backup, disaster recovery and business continuity processes, regularly testing backup integrity and recovery procedures
- 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 to enhance security, resilience and operational efficiency
- Lead infrastructure projects, which may include designing services and centralised authentication for standalone networks, building and maintaining self-hosted LLM servers, improving infrastructure and security tooling, and supporting research activities
Technologies
- AWS
- Support
- LLM
- Linux
- Microsoft 365
- Microsoft Intune
- Security
- Windows
- Office 365
- Cloud
More
We are a small cyber-security R&D company seeking an Infrastructure & Security Engineer to take ownership of our internal IT infrastructure, security operations and corporate systems while supporting our specialist software team. This is a broad, hands-on role based in Cheltenham, with five days on-site initially and scope for some work from home in the future. The salary is £60,000–£90,000. We offer a discretionary bonus typically worth 10–15% of salary, a pension with a 6% employer contribution and a 6–12% personal contribution via salary sacrifice, 26 days of annual leave with the option to buy or sell up to five days, private medical insurance including dental cover, and parking close to the office.
We also provide an annual training and development budget and paid time for courses and conferences. We welcome applications from people of all backgrounds and perspectives and can support reasonable adjustments during the recruitment process.
last updated 45 week of 2026