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Linux Security Administrator

ECS

Posted 2 weeks ago

Job Requirements

Sierra Vista, AZ
Secret Polygraph Unspecified
Career Level not specified
$100,000 - $140,000

Job Description

Job Description
ECS is looking for a Linux Security Administrator to join our team in Sierra Vista, AZ office.

Job Summary

The Linux security administrator will architect, deploy, and maintain secure Linux-based systems (primarily RHEL and Oracle Linux) across classified and unclassified networks. You will ensure all systems meet DoD Security Technical Implementation Guides (STIGs) and maintain an Authorization to Operate (ATO) through continuous monitoring and vulnerability remediation.

Core Responsibilities
  • Security & Compliance:
  • Implement and maintain system hardening in accordance with DISA STIGs and Risk Management Framework (RMF) controls.
  • Perform regular vulnerability scanning and remediation using tools like ACAS (Nessus) and SCAP.
  • Ensure systems are operational and comply with application team needs.
  • Develop and maintain infrastructure through automated means to standardize configurations across the enterprise wherever possible.
  • Automate routine administrative tasks through scripting and or chosen tool sets.
  • Manage large-scale deployments and patch lifecycles utilizing automated enterprise tools or developed methods.
  • Deploy and manage virtualized environments using VMware ESXi, KVM, or cloud platforms like AWS GovCloud.
  • Integrate Linux systems with enterprise identity services such as Active Directory, LDAP, or other architected methods.
  • Monitor system health and performance using enterprise tools within the environment.
  • Technical Environment
    • Operating Systems: Red Hat Enterprise Linux (RHEL), CentOS, Rocky Linux, Oracle Linux.
    • Tools: Red Hat Satellite, Ansible, ACAS, HBSS/Trellix EPP, VMware vSphere.
    • Protocols: SSH, NFS, DNS, LDAP, PKI certificate management.
    • Must hold a current IAT Level II certification (e.g., CompTIA Security+ CE) at a minimum. (May obtain within 90 days of hire)
    • Strongly preferred: OS-specific certifications like RHCSA (Red Hat Certified System Administrator) or RHCE.
  • Automation & Engineering
  • Systems Administration

Salary Range: $100,000 - $140,000

Required Skills
  • Clearance: Active DoD Secret or Top Secret/SCI.
  • Certifications (DoD 8140/8570):
  • Education: Bachelor's degree in Computer Science, IT, or a related field (relevant experience may sometimes substitute).
  • Experience: 3+ years of Linux administration experience, ideally within a secure or classified environment.


Desired Skills
  • Clearance: Active DoD Top Secret/SCI
  • Bachelors Degree

#EverforthECS1

ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

is the federal segment of , a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.

Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.

We value:
  • Attracting and developing top talent and high-performing teams
  • Fostering a culture that is engaging, accountable, and mission-driven


Meet the challenge. Make a difference with Everforth ECS!
group id: 10112231A

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Job Category
IT - Software
Clearance Level
Secret
Employer
ECS