Senior IT Operations Engineer (R6117)

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Description

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 [link] Follow Shield AI on LinkedIn, X, Instagram, and YouTube. What you'll do: - Build and operate classified infrastructure 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. Nutanix experience is preferred. - 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. - Administer backup, recovery, and continuity capabilities. 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 and standardize Automate provisioning, configuration, patching, reporting, and compliance tasks using PowerShell, Ansible, Python, Terraform, or similar tools. - Create repeatable build processes, system baselines, checklists, and runbooks so systems can be deployed consistently rather than built by hand each time. - Improve existing processes by reducing manual steps, preventing common errors, and documenting effective methods for building and supporting systems. - Apply and validate DISA STIGs and SRGs using SCAP, STIG Viewer, ACAS/Nessus, scripted remediation, and other approved 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. - Support accreditation and security operations Work with ISSMs, ISSOs, security teams, and program stakeholders to implement NIST SP 800-53, JSIG, RMF, and program-specific technical controls. - Provide technical documentation and evidence for authorization packages, continuous monitoring, assessments, and audits. - Implement and maintain audit logging and forwarding, including Elastic or similar centralized logging and SIEM tools. - Support vulnerability management through ACAS/Nessus scanning, findings triage, remediation planning, patching, and validation during approved maintenance windows. - Help resolve technical POA&M items and document remediation steps, validation results, and remaining risks. - Support approved media handling, file transfer, cross-domain processes, and contamination or spillage response alongside the security team. - Support users and sites Act as a senior escalation point for classified IT issues that block engineering work or require deeper troubleshooting across multiple systems. - Identify and correct root causes rather than relying on repeated fixes or workarounds. - Support user-account, privileged-access, and workstation-access requests consistent with least privilege and separation-of-duties requirements. - 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. - Work independently, manage competing priorities, communicate risks early, and bring practical solutions to the team. Required qualifications: - 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 applying DISA STIGs, using SCAP/STIG Viewer, supporting ACAS/Nessus findings, and working in RMF, NIST SP 800-53, JSIG, or similarly regulated environments. - 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. Preferred qualifications: - Nutanix AHV, Prism Central, Files, Flow, or cluster lifecycle

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