Senior Linux Systems Administrator
AMERICAN SYSTEMS
full-time
Posted on:
Location Type: Office
Location: Crane • 🇺🇸 United States
Visit company websiteSalary
💰 $80,100 - $133,700 per year
Job Level
Senior
Tech Stack
AnsibleCyber SecurityDockerLinuxPostgresPythonVMware
About the role
- Administer and support Red Hat Linux systems in a classified, closed enclave
- Provide Tier II operational support for production and development environments
- Monitor system performance, storage capacity, and availability
- Review logs, validate backups, and support recovery operations
- Develop and maintain scripts using BASH and Python
- Manage users, groups, permissions, and local repositories per RMF requirements
- Support secure data transfers and automation workflows
- Author and maintain SOPs, SCTMs, and RMF documentation
- Collaborate with cybersecurity teams to maintain compliance
- Coordinate with geographically separated partner sites
- Recommend system, process, and architecture improvements
- Mentor junior administrators and support team development
Requirements
- Active Top Secret clearance
- 5–7 years of Linux systems administration experience in enterprise or mission-critical environments
- Experience with Ansible, containerization (Podman/Docker), and OpenLDAP
- DoD 8140 IAT Level II certification (Security+ CE or equivalent)
- VMware vSphere 7.x+ experience
- BASH and Python scripting skills
- Working knowledge of PostgreSQL
- Ability to obtain RHCSA within six months of hire
- Although Red Hat certifications are a plus and considered favorably, qualified candidates without certifications are highly encouraged to apply.
Benefits
- healthcare benefits
- paid leave
- retirement plans
- insurance programs
- education and training assistance
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard skills
Linux systems administrationBASH scriptingPython scriptingAnsiblecontainerizationOpenLDAPVMware vSphere 7.x+PostgreSQLsystem performance monitoringbackup validation
Soft skills
mentoringcollaborationcommunicationproblem-solvingteam development
Certifications
Top Secret clearanceDoD 8140 IAT Level IISecurity+ CERHCSA