Linux Systems Engineer - TS Clearance Required

SciTec Incorporated; Aurora (CO); On-site; USD 149,000 - 184,000; Full time

Benefits offered by this job

401(k) plan with 4% match

Company-paid health insurance options

Generous PTO and holidays

Discretionary performance bonus

Flexible work hours

Job summary

SciTec, a key defense contractor, seeks a Linux System Administrator to lead the System Administrator team and manage secure Linux/Windows infrastructure in a mission-focused environment. You will install, configure, and harden systems, manage patches, and ensure high availability while collaborating with security and operations teams.

The role requires hands-on expertise with RHEL, virtualization, and modern container tooling, plus TS clearance.

Qualifications

• 8+ years of Linux system administration experience.
• Active Top Secret clearance.
• Experience with RHEL 8/9/10 and security controls (STIG).

Responsibilities

• Lead the System Administrator team ensuring operational excellence.
• Install, configure, and maintain RHEL workstations/servers per baselines.
• Implement security hardening, backups, auditing.
• Manage patching and third-party software (IDEs, PyPI, Docker registry).
• Monitor performance and troubleshoot hardware/software issues.
• Support virtualized/workstation environments (VMware).
• Configure networking in mixed Linux/Windows environments.
• Document configurations and changes per policy.
• Collaborate with security and operations teams.
• Provide technical support and resolve operational issues.
• Participate in automation and modernization efforts.
• Perform other duties as assigned.

Skills

Linux system admin

Security hardening

System monitoring

Team mentorship

Communication

Secret clearance

Scripting: Python/Bash

Documentation

Education

Bachelor’s degree in IT/related field

Tools

Docker

VMware vSphere

Kubernetes

Podman

Ansible

Git/GitLab

Job description

SciTec, a key defense contractor, seeks a Linux System Administrator to lead the System Administrator team and manage secure Linux/Windows infrastructure in a mission-focused environment. You will install, configure, and harden systems, manage patches, and ensure high availability while collaborating with security and operations teams.

The role requires hands-on expertise with RHEL, virtualization, and modern container tooling, plus TS clearance.