Infrastructure Engineer II (TS/SCI with CI Polygraph)

DeNOVO Solutions • Aurora, CO

9d • Onsite

About The Position

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.

Requirements

• Four (4) to seven (7) years of experience supporting enterprise IT infrastructure.
• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent practical experience.
• Active CompTIA Security+ CE certification or IAT Level II equivalent.
• TS/SCI with CI Polygraph clearance.

Nice To Haves

• SolarWinds, Splunk, Grafana, Nagios, Prometheus, Jira, Confluence
• AWS, Azure Government, Hybrid Cloud

Responsibilities

• 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.
• 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.
• Support enterprise storage platforms including NetApp, Dell EMC Unity, PowerMax, 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.
• Support Linux-based compute environments used for enterprise and AI workloads.
• Assist with GPU-enabled servers, high-performance computing environments, containerized platforms including Kubernetes, OpenShift, and Docker, and AI infrastructure initiatives utilizing NVIDIA, HPE, Dell, and virtualization technologies.
• Participate in infrastructure modernization, capacity planning, and performance optimization.
• Develop automation scripts using PowerShell, 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.
• 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.

Benefits

• Medical, Dental, and Vision Premiums 100% Employer Paid for you and your legal dependents or plus up, cost split plan.
• DeNOVO Paid Health Reimbursement Account (HRA).
• 401k with 6% Match.
• 11 Paid Federal Holidays.
• 120 hours of Paid Time Off (PTO).
• Company Outings and Trips.
• Tuition Reimbursement, Skillset Training, and New/Renewed Certification assistance.
• HomeFundIt Company Down Payment Match – Employer match towards the down payment of buying a new home.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level