ACAS Engineer

MANTECH•Norfolk, VA

17h•$89,100 - $148,200•Onsite

About The Position

MANTECH seeks a motivated, career and customer-oriented Assured Compliance Assessment Solution (ACAS) Engineer to join our team onsite in Norfolk, VA. MANTECH is a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. This role involves safeguarding the nation through advanced tech and innovative solutions in areas like Cybersecurity, IT, and Data Analytics.

Requirements

Associate's degree in Computer Science, Information Technology, or a related field and +5 years of experience in Cybersecurity, Network Administration, or High School Diploma or equivalent and 7+ 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
US Citizenship required and an active Secret clearance with the ability to obtain TS/SCI

Responsibilities

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