Systems Administrator (R5064)

JobsCloseBy Editorial Insights

Shield AI seeks a Systems Administrator in London to support Windows and Linux, end-user devices, server systems, AD and Azure AD, and IT asset lifecycle management, with leadership of junior admins and an on-call rotation. The ideal candidate blends troubleshooting, clear documentation, and collaboration with infrastructure, network, and security teams to maintain a secure, scalable environment. Requirements: 3+ years in systems administration or desktop support, Windows/Linux proficiency, AD/Azure AD, networking basics, and asset management tools; preferred: 5+ years, PowerShell, Intune, JAMF, ITIL, and procurement experience. To apply, tailor your resume to show on-call readiness, mentoring impact, and concrete asset lifecycle and incident response improvements, and confirm willingness to work onsite in London.

Job Description:

What you'll do:

Provide hands-on desktop, server, and systems administration support for Windows and Linux environments.
Install, configure, and troubleshoot hardware and software issues across end-user devices and server systems.
Administer user accounts, access control, and group policies using Active Directory and Azure AD.
Manage IT assets throughout their lifecycle: procurement, deployment, support, and decommissioning.
Ensure proper inventory control, software licensing compliance, and asset tracking using IT asset management tools.
Generate reports on hardware/software usage, compliance, and asset depreciation for internal and audit needs.
Lead and mentor junior administrators and support staff; contribute to technical documentation and team training.
Participate in on-call rotation and perform maintenance activities outside business hours as required.
Collaborate with infrastructure, network, and security teams to support enterprise IT operations and incident response.

Required qualifications:

3+ years of experience in systems administration or enterprise desktop support roles.
Strong proficiency in Windows and Linux operating systems.
Experience with Active Directory, Azure AD, and identity/access management tools.
Knowledge of networking fundamentals (TCP/IP, DNS, DHCP) and endpoint security practices.
Familiarity with IT asset management platforms (e.g., SNIPE, JSM, JIRA).
Ability to participate in an on-call rotation and off-hours maintenance windows.
Strong documentation, troubleshooting, and customer service skills.
Excellent communication and collaboration across technical and non-technical teams.

Preferred qualifications:

5+ years of IT experience, with at least 2 years in a senior or mentoring capacity.
Experience with Microsoft Endpoint Manager (Intune), JAMF, and scripting in PowerShell.
Working knowledge of ITIL practices related to change, incident, and asset management.
Previous experience in asset lifecycle planning and procurement strategy.
Experience supporting remote and hybrid work environments.
Industry certifications (e.g., CompTIA, Microsoft, ITIL, Cisco) are a plus.