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. Europe, the Middle East, and Asia-Pacific, Shield AI's technology actively supports operations worldwide. The Senior IT Systems Engineer builds, improves, and sustains classified infrastructure supporting engineering work. The role covers compute, virtualization, storage, networking, identity, endpoints, and security tooling in standalone and air-gapped environments. This is a hands-on senior individual contributor position. The engineer must be comfortable working independently, shifting across infrastructure disciplines when needed, and owning work from design through testing, documentation, and support. The role sits between IT operations and accreditation. Deploy, configure, and sustain Windows Server and Red Hat Enterprise Linux systems, virtualization clusters, enterprise storage, and core infrastructure services in standalone and air-gapped enclaves. Build and support VMware, Nutanix AHV/Prism, or similar virtualization environments. Support high-density compute for AI/ML, simulation, and engineering workloads, including GPU node provisioning, performance troubleshooting, capacity planning, and coordination with facilities on rack space, power, and cooling. Administer and support Active Directory, DNS, DHCP, Group Policy, PKI, certificate services, privileged access, and role-based access for isolated forests with no connection to corporate IT. Build and maintain golden images and hardened baselines for servers, workstations, virtual desktops, and supporting infrastructure. Manage patching, updates, software packages,



and security content in disconnected environments through approved transfer and validation processes. Perform scheduled restore testing and document results and corrective actions. Design, configure, and troubleshoot managed switching, VLANs, firewall rules, network segmentation, and approved network connections between facilities. Coordinate with network and security teams to maintain secure, supportable network standards. Automate provisioning, configuration, patching, reporting, and compliance tasks using PowerShell, Ansible, Python, Terraform, or similar tools. Maintain configuration-management records, as-built documentation, change records, and scan evidence so system configurations can be understood and defended later. Review technical changes before production implementation, with attention to security, availability, rollback planning, and operational impact. Work with ISSMs, ISSOs, security teams, and program stakeholders to implement NIST SP **, JSIG, RMF, and program-specific technical controls. Provide technical documentation and evidence for authorization packages, continuous monitoring, assessments, and audits. Support vulnerability management through ACAS/Nessus scanning, findings triage, remediation planning, patching, and validation during approved maintenance windows.



Act as a senior escalation point for classified IT issues that block engineering work or require deeper troubleshooting across multiple systems. Support new facility and enclave stand-ups from rack layout and cabling through infrastructure deployment, user onboarding, and operational handoff. Mentor junior system administrators and site IT staff, review implementation work before production release, and help improve team standards. Strong hands-on experience with Windows Server, Active Directory, Group Policy, DNS, DHCP, PKI, and enterprise endpoint management. Experience administering Red Hat Enterprise Linux or similar enterprise Linux systems. Experience with VMware, Nutanix, Hyper-V, or similar enterprise virtualization platforms. Nutanix AHV/Prism experience is preferred. Experience with enterprise storage, backup/recovery, and capacity planning. Experience with managed switching, VLANs, firewall administration, network segmentation, and troubleshooting network connectivity. Experience with PowerShell and infrastructure automation. Experience with Ansible, Python, Terraform, or similar tools is a plus. Experience operating in disconnected, air-gapped, classified, or highly controlled environments. Ability to document work clearly, follow change control, validate results, and build systems that are easy for others to support. Ability to work independently in a fast-moving environment, shift between infrastructure disciplines when needed, and make sound technical decisions without requiring detailed direction. Nutanix AHV, Prism Central, Files, Flow, or cluster lifecycle management. GPU server, AI/ML, simulation, VDI, or high-performance compute infrastructure. Elastic, Splunk, or other centralized logging and SIEM platforms. Disconnected WSUS, offline patching, software-

📌 Senior It Operations Engineer (España)
🏢 shieldai
📍 España