Security and Infrastructure Engineer

• Implement and maintain secure, scalable IT and cloud infrastructure
• Support rollout of Microsoft security ecosystem (Defender, Intune, Entra, Purview, etc.)
• Configure and maintain identity, access control, and endpoint security
• Improve logging, monitoring, and alerting capabilities
• Support implementation of Cyber Essentials Plus, ISO27001-aligned controls, and Defence security requirements
• Help maintain diverse assets globally (Linux, Windows, Mac), security control policies and procedures, continuous security improvements
• Administer and support Microsoft 365, Google Workspace, cloud infrastructure (AWS/Azure), internal tools (Slack, Docker, etc.)
• Provide incident response, troubleshooting, and technical service delivery
• Work with engineering teams to deliver secure development environments, AI/embedded device security, secure lab, and flight trials environments

Technologies:

• AI
• AWS
• Azure
• Cloud
• Cisco
• Docker
• Embedded
• Support
• LLM
• Linux
• macOS
• Microsoft 365
• Security
• Slack
• Windows
• Office 365
• CTO
• DevOps
• IoT

More:

We are a growing defence AI company located in central Oxford, dedicated to developing and delivering mission-critical uncrewed aircraft subsystems. By joining us as a Security & Infrastructure Engineer, you will have the opportunity to make a measurable difference in a fast-paced environment, working alongside a world-class team. We offer a supportive culture, merit-based compensation, 25 days holiday plus UK bank holidays, medical insurance, and various perks. Our commitment to growth and the creation of cutting-edge technology makes this role a unique opportunity for professionals who thrive in dynamic settings.

• 3-7 years hands-on experience in IT, cloud infrastructure, and security with potential to grow into security leadership
• Experience administering cloud environments (AWS, potentially Azure/hybrid/local/others)
• Experience with Microsoft 365, Google Workspace, Docker, Slack, VMs, AI LLM tools
• Experience with security frameworks such as ISO27001, NIST
• Experience managing Linux, Windows, MacOS environments using endpoint management tools such as Intune
• Experience with networking tools such as Cloudflare, Unifi or Cisco
• Experience with Defender XDR, Microsoft Purview, Sentinel or similar cyber data security tools
• Competency in incident response, investigation, vulnerability remediation
• Ability to obtain and maintain UK Security Check clearance
• Willingness to work on-site 4 days per week
• Alignment with our ways of working: clear & concise communication; structured thinking; high organisation; commercial awareness; growth mindset and positive energy.