Systems Administrator (Windows/Linux)

ActioNet is looking for a System Administrator role that provides hands-on technical support in a classified environment, responsible for installing, configuring, securing, and maintaining Windows and Linux systems, networks, and associated hardware and software. This role emphasizes scripting and automation to streamline system administration tasks across mission-critical environments. The position includes building systems from bare metal, managing authentication services, performing backups, monitoring security events, troubleshooting failures across multiple sites, and ensuring compliance with DoD and Intelligence Community security standards. The administrator contributes to documentation, automation, and performance optimization while supporting infrastructure-as-code tools. Strong customer engagement, communication, and the ability to prioritize workloads are essential. The role requires onsite support 90% of the time, limited travel, U.S. citizenship, and an active TS/SCI (eligible for CI Poly).

Salary: $130-170K

Requirements
Work directly with customers in a technical role
Responsible for asset installation, configuration, operation, and maintenance of systems hardware, software, and related infrastructure
Configure and manage operating systems (Windows and Linux), applications, networks, and network equipment
Build systems from bare metal aligned with accredited baselines
Configure and manage DOD and IC standard distributed authentication services
Develop and maintain scripts using Bash, PowerShell, and Python to automate system administration tasks
Perform security monitoring, backups, file archival, and system recovery
Troubleshoot hardware, software, and connectivity issues across multiple sites
Document procedures and contribute technical content and tutorials
Preferred Qualifications
Linux and Windows scripting proficiency
Experience with Ansible, Puppet, Terraform, and Chef
Strong understanding of security concepts and IC/DoD compliance
Preferred Certifications
CompTIA Security+
Red Hat Certified System Administrator (RHCSA)
Microsoft Windows Server Hybrid Administrator Associate