Linux Systems Administrator

Description

The team supports mission-critical enterprise infrastructure in a secure Department of Defense and Intelligence Community setting.

This full-time role involves highly classified operational environments and needs someone who can work independently and solve complex infrastructure problems.

Responsibilities

• Administer enterprise Windows and Linux servers, including hardening, patching, and virtual machine provisioning, performance tuning, and lifecycle management on VMware or comparable platforms.
• Manage firewall security policies and IPSec VPNs, including ASA-to-ASA tunnels.
• Build automation with Python, Bash, and Ansible to provision infrastructure, manage configuration, and improve operational efficiency.
• Keep systems compliant with DoD cybersecurity rules by applying IAVA patches, remediating vulnerabilities, and implementing STIGs.
• Support STE and STN processes and run Nessus scans to analyse and fix weaknesses and monitor security continuously.
• Install hardware, rack and stack equipment, run structured cabling, and keep infrastructure documentation and network diagrams accurate.
• Troubleshoot complex system, network, and security issues to keep enterprise environments highly available.

Requirements

• Active TS/SCI clearance with a current polygraph.
• Bachelor's degree in information technology, computer science, engineering, or a related field. Additional relevant experience can replace the degree.
• 10+ years of progressive systems administration experience supporting enterprise IT in secure Linux environments.
• DoD 8570/8140 IAT Level II certification, such as Security+, CySA+, CCNA Security, or an equivalent.
• Strong experience in several of the following areas: Cisco ASA, Cisco Firepower, and Palo Alto firewall administration; IPSec VPN configuration and secure networking; VMware or comparable virtualization administration; Python, Bash, and Ansible automation; enterprise server administration on Windows and Linux with system hardening and patch management; IAVA patching, vulnerability remediation, STIG implementation, and DoD compliance; STE and STN processes; Nessus vulnerability scanning; hardware installation, rack and stack, and structured cabling; troubleshooting complex systems, networks, and security issues in highly available environments.

Conditions

Final salary depends on location, Federal Government contract labor categories and wage rates, prior experience, skills, education, and certifications. The posted range is $120,800 - $265,800.

The position depends on funding and may not be filled immediately. Applicants may also be considered for other roles at the company.

The role is full time with no travel required.

Benefits

• Competitive compensation, learning and development opportunities, and a broad mix of benefits.
• Comprehensive benefits including healthcare, wellness, financial, retirement, family support, continuing education, and time off.
• A flexible time off benefit and access to robust learning resources.