ACAS Administrator - Junior

We are seeking a Junior ACAS Administrator to support the operation and sustainment of Tenable/Nessus/ACAS tools in both classified and unclassified DoD environments. This is an entry-level cybersecurity role focused on running scans, maintaining dashboards, and supporting routine system tasks as part of a broader Zero Trust initiative.

This is a hybrid position based at the Mark Center, with 2-3 days of onsite work weekly required to support SIPR access.

Key Responsibilities

• Assist with the administration of Tenable/Nessus/ACAS scanning tools across hybrid environments.
• Coordinate with senior system administrators and engineers to execute scheduled scanning activities.
• Ensure scan results are delivered in a timely and accurate manner to internal stakeholders.
• Support the development and maintenance of:
• Scan policies and zones
• Dashboards and reporting tools
• SOPs and technical documentation
• Respond to incidents under guidance from senior staff.
• Help maintain system compliance with STIGs, FISMA, and FIPS security standards.
• Assist in preparing technical reports and supporting documentation.

Required Qualifications

• 1+ years of experience with Tenable/Nessus/ACAS or similar vulnerability scanning tools.
• Active Secret (Tier 3) clearance.
• Security+ or IAT Level II

Familiarity with:

• Vulnerability scan execution
• Basic cybersecurity principles and DoD standards
• Strong communication skills and willingness to learn in a fast-paced, mission-critical environment.

Preferred Skills

• Exposure to STIGs, FISMA, and other DoD compliance standards.
• Experience working in classified or hybrid environments (cloud/on-prem).
• Eagerness to grow into an intermediate role and gain experience in interpreting scan data.