ACAS Engineer

MANTECH seeks a motivated, career and customer-oriented Assured Compliance Assessment Solution (ACAS) Engineer to join our team onsite in Norfolk, VA.

Responsibilities include but are not limited to:

• Administer, operate, and maintain Tenable Security Center and Nessus scanners in support of continuous monitoring and vulnerability assessment efforts

• Utilize Vulnerability Remediation Asset Manager (VRAM) to track, manage, and report on vulnerability findings in coordination with ACAS outputs

• Analyze scan results, validate findings, and collaborate with system owners on remediation plans

• Create custom dashboards, queries, and reports to support compliance and risk visibility

• Maintain and update ACAS tool configurations, plugins, and scan policies in accordance with DoD STIGs, DoD ACAS Best Practice Guide, and Navy Scanning Guidance

• Support vulnerability reporting to Continuous Monitoring and Risk Scoring (CMRS) platforms

• Troubleshoot scan failures and system connectivity issues across R&D environments

• Support coordination with internal and external stakeholders, including ISSM, ISSOs, CITO, CONMON manager, A&A manager, and RMF SMEs

• Implement software updates, patches, and configuration changes in compliance with cybersecurity guidance

• Maintain documentation for system configuration, scan schedules, processes, and issue resolution

Minimum Qualifications:

• Associate's degree in Computer Science, Information Technology, or a related field and +5 years of experience in Cybersecurity, Network Administration, or Vulnerability Management, OR equivalent education and years of relevant experience in lieu of degree.

• Hands-on experience using ACAS tools (Tenable Security Center, Nessus)

• Must have IAT Level II certification (e.g., Security+ CE)

• Must have DISA ACAS Operator and Supervisor Course certificate

• Experience or knowledge of DoD cybersecurity policies, RMF process, and DISA STIGs

• Proficient level understanding of TCP/IP, Windows and Linux environments, and system hardening principles

Clearance Requirements:

• US Citizenship required and an active Secret clearance with the ability to obtain TS/SCI

Physical Requirements:

• Must be able to remain in a stationary position 50%

• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer

• The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.