Senior Systems Administrator (R5064)

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI’s technology actively supports operations worldwide. For more information, visit www.shield.ai . Follow Shield AI on LinkedIn , X , Instagram , and YouTube .

Job Description

The Systems Administrator is responsible for supporting, securing, and optimizing enterprise IT operations. This includes end-user system support, infrastructure maintenance, IT asset lifecycle management, and leadership of junior team members. The ideal candidate brings strong technical expertise, organizational discipline, and a collaborative mindset to support a modern, scalable, and secure IT environment.

#LC

Our international teammates receive a comprehensive total rewards package aligned to your country office location. For full details on compensation and benefits, please consult your talent acquisition partner.

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.

Requirements

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.

Nice to have

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.

Benefits

Help build the defining defence technology company of this century.; Work at the forefront of AI, autonomy, and next-generation defence systems.; Operate in a highly entrepreneurial and mission-driven environment.; Make a direct impact on international growth and strategic defence partnerships.; Collaborate with exceptional teams solving some of the world’s most complex operational challenges.