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Senior IT Operations Engineer (R6117)

Shield AI· Legal Division – Security
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Dallas, Texas$99k - $140kFull Time EmployeePosted 3w ago

About the role

Senior IT Systems Engineer responsible for building, improving, and sustaining classified infrastructure supporting engineering work, covering compute, virtualization, storage, networking, identity, endpoints, and security tooling in standalone and air-gapped environments.

Responsibilities

  • 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 RBAC 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 with scheduled restore testing and documentation of 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 standards.
  • 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 for consistent deployments.
  • Improve processes by reducing manual steps and documenting effective methods.
  • Apply and validate DISA STIGs and SRGs using SCAP, STIG Viewer, ACAS/Nessus, and other tools.
  • Maintain configuration-management records, as-built documentation, change records, and scan evidence.
  • Review technical changes before production with focus on security, availability, rollback planning, and operational impact.
  • Work with ISSMs, ISSOs, security teams, and program stakeholders to implement NIST SP 800-53, JSIG, RMF, and program-specific controls.
  • Provide technical documentation and evidence for authorization packages, continuous monitoring, assessments, and audits.
  • Implement and maintain audit logging and forwarding (Elastic or similar SIEM).
  • Support vulnerability management through ACAS/Nessus scanning, findings triage, remediation planning, patching, and validation.
  • Assist with POA&M remediation and cross-domain/contamination procedures.
  • Support user onboarding, privileged-access, and workstation-access requests with least-privilege.
  • Assist with new facility and enclave stand-ups from rack layout to operational handoff.
  • Mentor junior system administrators and site IT staff, review implementation work before production release, and help improve team standards.
  • Operate independently, manage competing priorities, communicate risks early, and provide practical solutions.

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 Linux systems.
  • - Experience with VMware, Nutanix, Hyper-V, or similar virtualization; Nutanix AHV/Prism preferred.
  • - Experience with enterprise storage, backup/recovery, and capacity planning.
  • - Experience with managed switching, VLANs, firewall administration, network segmentation, and troubleshooting connectivity.
  • - Experience with PowerShell and infrastructure automation; Ansible, Python, Terraform a plus.
  • - Experience applying DISA STIGs, using SCAP/STIG Viewer, supporting ACAS/Nessus, and working in RMF, NIST SP 800-53, JSIG, or similar 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 maintainable systems.
  • - Ability to work independently in a fast-moving environment and shift across disciplines.

Skills

Required:Windows ServerActive DirectoryRed Hat Enterprise LinuxVirtualizationStorage and backupAutomation

Benefits

  • Full-time regular employee offer package: Pay within range listed + Bonus + Benefits + Equity
  • Temporary employee offer package: Pay within range listed above + temporary benefits package (applicable after 60 days of employment)
  • Salary compensation is influenced by skill set, experience, licenses/certifications, and location; background and reference checks required; some employees may not be eligible for benefits.
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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