Senior Linux Systems Administrator - TS/SCI On-Site

Leidos; Huntsville (TN); On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos-Dynetics seeks a Linux Systems Administrator to ensure secure, efficient operation of information systems, including vulnerability scans and STIGs for regulatory compliance. Mastery of Linux, networking, and Windows is essential, with strong collaboration across teams and stakeholders.

The role emphasizes DoD standards compliance, privileged access management, and maintaining both virtual and physical environments in a demanding setting. On-site Huntsville location preferred.

Qualifications

• Bachelor's degree with 8+ years system administration experience.
• Minimum 4+ years Linux administration experience.
• DoD TS/SCI with Poly clearance required; active polygraph prioritized.
• DoD 8570/8140 IAT II certification required.
• Experience managing multiple networks in dynamic environments.
• RMF familiarity for Windows, Linux, and network devices.
• Excellent written and verbal communication skills.

Responsibilities

• Design systems and implement new hardware/software.
• Maintain Linux, network devices, and Windows endpoints.
• Ensure information systems comply with DoD standards.
• Coordinate with IA team to meet compliance.
• Manage privileged access.
• Properly mark, handle, and store classified materials.
• Maintain baseline configurations of information systems.
• Lead multiple projects within the area of responsibility.
• Adopt new technologies and train staff to stay compliant.
• Maintain robust virtual and physical environments.

Skills

Linux administration

Security clearance DoD TS/SCI withPoly

IAT II certification

RMF familiarity

Strong communication

Education

Bachelor's degree in a relevant field

Tools

Ansible

Job description

Leidos-Dynetics seeks a Linux Systems Administrator to ensure secure, efficient operation of information systems, including vulnerability scans and STIGs for regulatory compliance. Mastery of Linux, networking, and Windows is essential, with strong collaboration across teams and stakeholders.

The role emphasizes DoD standards compliance, privileged access management, and maintaining both virtual and physical environments in a demanding setting. On-site Huntsville location preferred.