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Senior Systems Administrator (R5064)

Shield AI· Enterprise Operations Division – Service Delivery
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Hybrid (London)Full Time EmployeePosted 4mo ago

About the role

Senior Systems Administrator responsible for supporting, securing, and optimizing enterprise IT operations, including end-user system support, infrastructure maintenance, IT asset lifecycle management, and leadership of junior team members.

Responsibilities

  • 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.

Qualifications

  • 4+ 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.

Skills

Required:Windows and Linux system administrationActive Directory and Azure ADNetworking fundamentalsIT asset managementOn-call / off-hours maintenanceDocumentation and collaboration

Benefits

  • Our international teammates receive a comprehensive total rewards package aligned to your country office location.
Last updated Oct 23, 2026. Interested? Apply on the company site.

About Shield AI

Autonomy for the world.

Our mission is to protect service members and civilians with intelligent systems.

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