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Linux Systems Administrator - TS​/SCI Poly | Mission-Critical

Job in Bethesda, Montgomery County, Maryland, 20811, USA
Listing for: Emtakllc
Full Time position
Listed on 2026-07-15
Job specializations:
  • IT/Tech
    Systems Administrator, Unix/Linux, Cybersecurity
Job Description & How to Apply Below
Position: Linux Systems Administrator I - TS/SCI Poly | Mission-Critical

System Administration L1 - TS/SCI Poly required

Annapolis Junction, MD

Linux Systems Administrator I – TS/SCI with Full Scope Polygraph

Location: Annapolis Junction, MD
Clearance Required: TS/SCI with Full Scope Polygraph

EMTAK is seeking a Linux Systems Administrator I to support a mission-critical Intelligence Community program. This is an excellent opportunity for an early-career Linux administrator who wants to work in a fast-paced, highly technical environment supporting enterprise infrastructure and mission operations.

The ideal candidate will have a solid foundation in Linux systems administration, excellent troubleshooting skills, and the desire to expand their expertise while supporting secure enterprise environments.

Ten (5) years experience as a SA in programs and contracts of similar scope, type, and complexity is required. Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a bachelor’s degree.

Certifications:

Compliance with DoD 8570.01-M with a minimum certification of IAT Level II (SEC+, CCNA)

Responsibilities
  • Administer, maintain, and troubleshoot Linux-based systems in a classified environment.
  • Install, configure, upgrade, and maintain servers, workstations, and laptops running CentOS, Rocky Linux, and Red Hat Enterprise Linux (RHEL).
  • Perform hardware installation, system imaging, software deployments, and operating system upgrades.
  • Support secure data transfers and Customer Secure the Enterprise (STE) activities.
  • Monitor system performance, identify issues, and resolve hardware and software problems.
  • Create and maintain system documentation and standard operating procedures.
  • Collaborate with systems engineers, network administrators, cybersecurity personnel, and customer representatives to ensure mission success.
  • Maintain compliance with security policies, configuration management, and operational procedures.
Required Qualifications
  • Active TS/SCI with Full Scope Polygraph.
  • 2+ years of Linux Systems Administration experience.
  • Experience installing, configuring, upgrading, and maintaining servers, workstations, and laptops.
  • Experience with hardware installation and troubleshooting.
  • Familiarity with Customer Secure the Enterprise (STE) tasks.
  • Experience supporting secure customer data transfer processes.
  • Strong troubleshooting and problem-solving skills.
  • Ability to work independently and as part of a collaborative team.
Desired Qualifications
  • Experience with automation tools such as Ansible.
  • PXE boot and system imaging experience.
  • Experience building and managing virtual machines using Proxmox.
  • Identity Management (IdM) and LDAP integration experience.
  • Red Hat Certified System Administrator (RHCSA) certification.
  • Experience configuring and troubleshooting Transport Layer Security (TLS).
  • VMware virtualization experience.
  • Security+ or other DoD 8570/8140 certification.
Why Join EMTAK?

At EMTAK, you'll join a small, agile team supporting some of the Intelligence Community's most challenging missions. We offer competitive compensation, outstanding benefits, career growth opportunities, and the chance to work alongside experienced professionals solving real-world national security challenges.

If you're looking to grow your Linux administration career while supporting meaningful mission work, we'd love to hear from you.

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