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Systems Administrator Jobs

Marathon TS Inc
Full Timemid
McLean, Virginia, USPosted March 6, 2026

Job Description

Systems Administrator

Fully Remote

The Systems Administrator / Cloud & Application Support Engineer provides expert-level application administration, system security, and cloud operations support for CMTARS and associated DoD cloud environments. This role supports the operation, maintenance, and administration of delivered capabilities while providing architectural, engineering, and technical expertise across development, staging, and production environments. The engineer will work closely with system and database administrators, troubleshoot application and production issues, and contribute to system documentation, sustainment efforts, and new capability deployments.

Education and Experience

  • Minimum 5 years of demonstrated Systems Administration experience.
  • Demonstrated experience working with OpenText Directory Services and Active Directory in a DoD Cloud environment.
  • Proven experience hardening cloud environments, applying and adhering to DoD STIGs (Security Technical Implementation Guides).

Certifications (Required)

  • Security+ (DoD 8570.01-M compliant).
  • Microsoft Azure Fundamentals Certification.
  • OpenText System Administration Certification.
  • OpenText AppWorks Certification (version 20.2 or earlier to 16.2).

Required Skills

Working knowledge of:

  • Microsoft Azure
  • CloudONE administration

Strong understanding of:

  • Cloud security practices
  • DoD compliance requirements
  • Application and system integration in secured cloud environments

Desired Skills

  • Experience supporting cloud migrations (Azure and other DoD Cloud platforms).
  • Familiarity with CMTARS architecture and sustainment operations.

Ability to create and maintain:

  • Technical Environment Architecture Documentation
  • System Administration Issue Tracking
  • Strong ability to recommend performance improvements and optimize application behavior.

Experience acting as an SME for:

  • Sustainment projects
  • Technical upgrade initiatives
  • New feature deployments
  • Technology modernization efforts

Security Clearance

  • Secret clearance

#cjjobs

Marathon TS is committed to the development of a creative, diverse and inclusive work environment. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Marathon TS will be based on merit, qualifications, and abilities. Marathon TS does not discriminate against any person because of race, color, creed, religion, sex, national origin, disability, age or any other characteristic protected by law (referred to as "protected status").

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