Infrastructure Engineer II; TS​/SCI CI Polygraph

Sign-On Bonus Eligible:

Infrastructure Engineer II

Aurora, CO

TS/SCI with CI Polygraph

DeNOVO Solutions is seeking an Infrastructure Engineer II to support, maintain, and modernize enterprise IT infrastructure across classified and unclassified environments. This role is ideal for an experienced infrastructure engineer who enjoys working across systems administration, virtualization, networking, storage, automation, and emerging AI infrastructure. You'll partner with senior engineers, cybersecurity professionals, and leadership to build secure, reliable, and scalable enterprise environments that support critical mission operations.

• You'll modernize enterprise infrastructure: support next-generation infrastructure initiatives spanning virtualization, automation, enterprise storage, and AI-enabled compute environments.
• You'll work across the enterprise: gain hands-on experience supporting Linux, Windows, networking, storage, backup, and cloud technologies in highly secure environments.
• You'll drive operational excellence: help automate infrastructure management, improve system reliability, and contribute to modernization efforts supporting future mission capabilities.

• Systems Administration: administer and maintain Red Hat Enterprise Linux (RHEL), Rocky Linux, Ubuntu, and Microsoft Windows Server environments while supporting Active Directory, DNS, DHCP, Group Policy, file services, and authentication systems. Perform system patching, upgrades, lifecycle replacements, and system hardening activities. Support VMware vSphere/ESXi virtualization and assist with Microsoft Exchange Server and Microsoft 365 administration. Develop and maintain technical documentation and standard operating procedures.
• Network Infrastructure: support enterprise switching, routing, firewalls, and network appliances. Troubleshoot network connectivity, VLANs, VPNs, and routing issues while maintaining classified and unclassified network infrastructure. Support Cisco, Juniper, Palo Alto, Fortinet, and related technologies. Maintain network diagrams and configuration documentation.
• Storage & Backup Administration: support enterprise storage platforms including Net App, Dell EMC Unity, Power Max, Hitachi VSP, and similar SAN/NAS technologies. Perform storage provisioning, capacity planning, and performance monitoring. Support enterprise backup solutions including Veeam, Rubrik, Commvault, Veritas, and related platforms while participating in restoration activities and disaster recovery exercises.
• Linux & AI Infrastructure: support Linux-based compute environments used for enterprise and AI workloads. Assist with GPU-enabled servers, high-performance computing environments, containerized platforms including Kubernetes, Open Shift, and Docker, and AI infrastructure initiatives utilizing NVIDIA, HPE, Dell, and virtualization technologies. Participate in infrastructure modernization, capacity planning, and performance optimization.
• Automation & Modernization: develop automation scripts using Power Shell, Python, and Bash. Automate routine infrastructure administration, support Infrastructure-as-Code initiatives, leverage Ansible and VMware automation frameworks, and contribute to AI-enabled operational efficiencies.
• Security & Compliance: support accreditation requirements for classified environments, maintain compliance with security controls, perform vulnerability remediation and system hardening, assist with audits, and collaborate with ISSOs, ISSMs, and cybersecurity personnel while supporting privileged user requirements and DoD cybersecurity policies.

• Operating Systems:
  Red Hat Enterprise Linux (RHEL), Rocky Linux, Ubuntu, Microsoft Windows Server
• Virtualization: VMware vSphere, ESXi
• Identity & Enterprise Services:
  Active Directory, DNS, DHCP, Group Policy, Microsoft Exchange Server, Microsoft 365
• Networking:
  Cisco, Juniper, Palo Alto, Fortinet, VLANs, VPNs, enterprise routing and switching
• Storage & Backup:
  Net App, Dell EMC Unity, Power Max, Hitachi VSP, SAN/NAS platforms,…