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ACAS Administrator - Senior Level

Agile Defense· Digital Transformation – Service Operations
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Quantico, VA$135k - $145kRegularPosted 2mo ago

About the role

Senior-level ACAS Administrator responsible for design, implementation, and sustainment of the ACAS application across Government Enterprise Networks, providing support to ISSOs/ISSMs and ensuring enterprise vulnerability management and cybersecurity compliance.

Responsibilities

  • Install, patch, maintain operating systems and ACAS applications while implementing and documenting applicable DISA STIGs for all ACAS implementations across supported network environments.
  • Perform daily administration of the ACAS environment, including managing user accounts, groups, repositories, scan zones, and other system configuration changes to ensure secure and efficient operations.
  • Assess current ACAS implementations across the GEN and recommend improvements to enhance performance, security, and operational effectiveness.
  • Ensure GEN networks receive daily plugin and feed updates from the DISA/DoD Patch Repository.
  • Ensure scheduled vulnerability scans successfully cover 100% of intended assets and troubleshoot failed or incomplete scans.
  • Provide technical support to internal and external customers experiencing ACAS scanning issues, including troubleshooting credentialed scans.
  • Maintain connectivity between Nessus Scanners, PVS, and the associated Security Center platform.
  • Develop, maintain, and update SOPs to support each client ACAS implementation.
  • Generate and deliver reports, metrics, and other documentation to support operational, compliance, and management reporting requirements.

Qualifications

  • ACAS Security Center and Nessus experience
  • Scripting (NASL, Python, Bash, Powershell) (preferred)
  • Good communication and interpersonal skills
  • Ability to follow policies and procedures
  • Ability to communicate clearly and respond to questions effectively
  • Aptitude to address negative situations positively
  • Understand the concepts of subnets

Skills

Required:ACAS Security CenterNessusCommunicationPolicy complianceSubnet awareness
Nice to have:Scripting
Last updated Oct 21, 2026. Interested? Apply on the company site.

About Agile Defense

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Agile Defense delivers advanced capabilities and solutions tailored to the most critical national security and civilian missions.

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