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 Senior 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. 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: • 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. Preferred qualifications: • 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. Why join Shield AI: • 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. #LI-LD2 #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.