ACAS System Remediation Administrator

ACAS System Administrator

Location: Washington, DC

Industry: Dept. of Defense

Salary: $80k-$140k

Employment Type: Permanent Placement

Clearance: Active Top Secret/SCI clearance Required

Schedule: Monday to Friday, 8am to 5pm

Overview:

We are seeking a talented and motivated ACAS System Remediation Administrator to support vulnerability management and cybersecurity compliance for networks. The successful candidate will manage and optimize ACAS tools such as Tenable Nessus and Security Center, perform vulnerability scans, and collaborate with RMF and engineering teams to remediate risks and ensure system compliance.

Responsibilities:

• Build and execute vulnerability remediation plans in coordination with Systems Engineering and RMF teams
• Configure, schedule, execute, and troubleshoot ACAS/Nessus scans
• Maintain and update Security Center with successful syncs and scan results
• Conduct analysis of scan results and provide mitigation strategies or author POA&Ms as needed
• Administer and support both Windows and Linux systems with a security-focused lens
• Implement and analyze STIGs, IAVAs, and vulnerability compliance frameworks
• Create and maintain documentation on vulnerabilities, remediation efforts, and RMF/eMASS artifacts
• Support automation of ACAS operations and contribute to scripting for system efficiencies
• Maintain compliance with DISA OPORDs, FRAGOs, and other cybersecurity directives
• Troubleshoot credential failures and scanning gaps across devices and networks
• Provide technical support across a wide range of software, hardware, and applications
• Collaborate with officials, IT managers, and cybersecurity professionals
• Contribute to broader security tasks and projects as directed by leadership
• Additional duties, as assigned.

Requirements:

• Active TS/SCI clearance required
• Bachelor s degree in Computer Science, Information Systems, Cybersecurity, or related field highly preferred; additional experience may be considered in lieu of degree.
• 5+ years technical experience in IT systems or enterprise/global network experience
• Minimum IAT Level II certification as defined and described in DoDD 8570.01, 8570.01-M, 8140.01-03 and as amended (such as Sec+ or equivalent) required.
• Advanced certifications such as CASP+, CISSP, or CEH preferred.
• Completion of DISA ACAS Operator and Supervisor Course preferred.
• Experience supporting Risk Management Framework (RMF), eMASS, and DoD STIG compliance
• Strong experience with Tenable Nessus, Security Center (SC), and ACAS
• Familiarity with DISA STIGs, RMF, SCCVI, SCRI, and HBSS
• Knowledge of vulnerability management tools such as VMS and CMRS
• Proficient in scripting automation to support ACAS functionality
• Administration of Windows and Linux systems, with focus on cybersecurity
• Experience with ticketing systems such as ServiceNow or Remedy
• Experience in network design, LAN/WAN configurations, and security architectures
• Ability to interpret scan results and provide risk-based analysis and remediation
• Experience supporting security assessments, scan configurations, and policy tuning

Why Join Us:

We don t just invest in our mission we invest in you. From day one, you ll have access to a best-in class benefits package designed to support your well-being, growth, and future:

• Zero-Cost Healthcare: 100% employer-paid medical, dental, and vision coverage for you and your entire family
• Future-Proof Retirement: 401(k) with a 3% company match, fully vested immediately
• Generous PTO : 15 vacation, 5 sick, 2 personal days
• Grow Without Limits: Access to exclusive training platforms, certification reimbursements, and a generous development budget to elevate your career

Make an Impact. Grow with Experts. Protect the Nation.

Apply today and join a team that s rewriting the future of cybersecurity!

SRG4 Government Services is a leading provider of information technology, training, engineering, accounting and intelligence analytical services for agencies in the intelligence, defense, homeland security, cyber security, and federal civilian markets. SRG4 utilizes an innovative approach to identify and qualify talent that is unique to the federal contracting industry, featuring a cutting-edge platform that allows us to rapidly and precisely match professionals to client requirements. We have a proprietary database of over one million candidates and maintain continuous contact with our qualified talent.

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