--- title: Vulnerability Management & ACAS Administrator description: JCS Solutions is hiring for the Vulnerability Management & ACAS Administrator role in Fort Belvoir, VA. See the full description and apply. type: job url: https://www.foundrole.com/jobs/vulnerability-management-and-acas-administrator-at-jcs-solutions-01a187a2-feac-73e6-b8c1-d12c0b5c2151 date: 2026-11-15T01:26:44Z og_description: Join JCS Solutions as Vulnerability Management & ACAS Administrator in Fort Belvoir, VA. Pays $70K–$100K per year. Full-time role. og_image: https://www.foundrole.com/og/l66pky.png breadcrumbs: - label: Home url: https://www.foundrole.com/ - label: Search url: https://www.foundrole.com/jobs --- | | | |---|---| | **Company** | JCS Solutions | | **Location** | Fort Belvoir, VA | | **Salary** | $70K/yr - $100K/yr | | **Type** | Full Time | | **Posted** | Oct 29, 2026 | ## Is this job real? **Ghost job check:** A · Low risk. Probably a real opening. ## Visa sponsorship - **H-1B:** No H-1B sponsorship on record for JCS Solutions. - **E-Verify:** No E-Verify enrollment on record for JCS Solutions. ## Pay for similar jobs Most similar jobs pay $106,000 – $145,000 a year (median $122,000). ## Description Grow, innovate, and generate progress: Harness your expertise to solve challenges and celebrate success! **Job Summary** JCS Solutions is seeking an experienced **Vulnerability Management & ACAS Administrator** to support a high-profile Department of War contract at Fort Belvoir, VA. The I3TS program provides enterprise-wide IT support to the Defense Threat Reduction Agency's Information Management & Technology Directorate. The program helps the directorate consolidate, modernize and improve the IT services and mission capabilities it delivers to mission partners in CONUS and OCONUS locations. In this role, you will be the program's primary Assured Compliance Assessment Solution (ACAS) subject-matter expert and technical lead. You will own vulnerability scanning across NIPRNet, SIPRNet and the Joint Worldwide Intelligence Communications System (JWICS). You will keep scanners healthy and coverage complete, turn findings into clear and actionable reporting, and work with system owners and technical teams to get vulnerabilities fixed and confirmed closed. Your work directly reduces risk to the agency's mission. **Location:** Fort Belvoir, VA **Clearance:** TS/SCI **Salary:** $70,000.00 - $100,000.00 **Certification:** Active DoD 8140/8570 IAT Level II certification **What’s in it for you:** - Join a premier technology firm specializing in innovative solutions. - Be part of a collaborative, inclusive, and innovative work culture. - Enjoy tremendous growth potential in a high-performing team environment. - A robust benefits package: * Health, dental, and vision insurance * Life insurance * Short-and-long term disability * Paid time off (PTO) * 401k retirement plan with employer match * Annual Professional Development Reimbursement Program * And more!   **What you will do:** - Serve as the primary technical lead and subject-matter expert for ACAS and Nessus vulnerability scanning across NIPRNet, SIPRNet and JWICS. - Administer, operate, maintain and troubleshoot the ACAS/Nessus infrastructure, including: * scanners * scan configurations, schedules and policies * plugins and credentials * associated management components - Keep ACAS scanning capability, asset coverage, scanner health and vulnerability-data quality up to standard across all supported environments. - Plan, coordinate and run authenticated and unauthenticated scans that follow approved schedules, operational requirements and maintenance windows. - Analyze and validate scan results. Identify false positives, duplicate findings and scan-quality issues, and assess the possible impact on systems and mission operations. - Prioritize vulnerabilities by severity, operational impact, exploitability, asset criticality and remediation timelines. - Work with system administrators, network engineers, endpoint-security staff and system owners to drive remediation and verify closure. - Track vulnerabilities, remediation actions, exceptions and status in approved tracking systems. - Build and maintain vulnerability-management metrics, dashboards, trend analysis and recurring reports for technical staff, program leadership and customer stakeholders. - Find and fix coverage gaps, credentialed-scan failures, connectivity problems, scanner performance issues and asset-inventory discrepancies. - Support Security Technical Implementation Guide (STIG) compliance by matching ACAS findings to hardening requirements and remediation actions. - Write and maintain ACAS standard operating procedures, operating instructions, scan procedures, troubleshooting guides and knowledge articles. - Coordinate ACAS maintenance, upgrades, configuration changes and technical support with infrastructure, network, endpoint and cybersecurity teams. - Advise leadership and stakeholders on ACAS capabilities, vulnerability trends, remediation priorities and operational risk. **What you will bring:** - 8+ years of relevant cybersecurity, vulnerability management, systems administration or information assurance experience. - 7+ years of hands-on experience as an ACAS/Nessus subject-matter expert in a large enterprise or Department of War environment. - Proven experience running ACAS/Nessus infrastructure, including: - scanner deployment, configuration and health monitoring - scan-policy administration and plugin management - credentialed scanning - troubleshooting and reporting - Experience managing vulnerability scanning across multiple security domains, including NIPRNet, SIPRNet and JWICS or comparable enterprise environments. - Experience analyzing findings, validating scan results, identifying false positives, prioritizing remediation and verifying closure. - Experience developing vulnerability-management reports, metrics, dashboards and leadership-level status products. - Experience coordinating remediation with system administrators, network teams, endpoint-security teams and system owners. - Working knowledge of Microsoft Windows, Linux, virtualization, networking concepts and enterprise endpoint environments. - Working knowledge of: * STIG compliance * SCAP Compliance Checker (SCC) and STIG Viewer * secure configuration baselines and security hardening - Strong written, verbal, organizational, analytical and problem-solving skills. - Able to work independently as the program's primary ACAS technical lead while coordinating well with cross-functional technical teams. **Required Certifications** - An active DoD 8140 IAT Level II certification, such as one of the following: Security+ CE, CySA+, CASP+ CE, CCNA-Security, CCNP Security, CCSP, CISA, CISSP (or Associate), CND, GCED, GCIH, GICSP, GSEC, or SSCP **Education Requirements** - Bachelor's degree with 8+ years of relevant experience **How you will wow us:** - Tenable ACAS 201 certification. - Experience connecting or correlating ACAS data with asset-management, endpoint-security, configuration-management, ticketing or vulnerability-tracking tools. - Experience using Tanium, Trellix, Microsoft Defender for Endpoint or similar endpoint tools to support remediation and asset validation. - Experience building automated reports, dashboards or data-analysis products with PowerShell, Python, SQL or similar tools. - Experience supporting vulnerability exception management, risk acceptance workflows, Plans of Action and Milestones (POA&Ms) and remediation governance. - Other relevant Tenable, vulnerability-management, Microsoft, Linux or cybersecurity certifications. JCS Solutions (JCS) is a premier technology firm providing innovative solutions and high-quality services in defense, national security, and civilian sectors. JCS offers enterprise-wide solutions including cloud computing, software development, cybersecurity, digital modernization, and management consulting for the federal government. At JCS, we elevate our customers’ mission through the application of technology and professional services. Our commitment to investing in our workforce drives innovation and progress for our clients, employees, and communities. JCS is both a **Great Place to Work** and a **Top Places to Work** certified company.    Our employees embody our core values, and we are looking for others who do too! - **Customer Experience:** Strive for excellence and delight our clients - **Innovation:** Embrace creative thinking to enable continual growth and powerful solutions - **Accountability:** Take ownership of and pride in our actions and service delivery - **Inspire:** Be inspired to be your best self and have fun in the process - **Integrity:** Do the right thing, the right way, every time! - **Stewardship:** The careful and responsible management of something entrusted to our care. At JCS Solutions, compensation is based on a number of factors such as location, qualifications, and applicable contract terms. The general salary range for this position is as follows: $70,000.00 - $100,000.00 **Commitment to Non-Discrimination** All qualified applicants will receive consideration for employment without regard to any protected status protected by applicable federal, state, or local laws.   **NOTICE**: *Please be aware that all JCS Solutions communications related to job interviews and offers from our recruiting team will only come from @JCSSolutions.com. We want to emphasize that we do not conduct any interviews over Discord, Slack, Skype, Zoom, or any chat app.* ## Skills - Cyber Security - GIAC Security Essentials Certification - Technical Support - System Administration - Cisco Certified Network Associate - Cisco Certified Network Professional - Hardening - IBM Certified SOC Analyst - QRadar SIEM V7.4.3 Plus CompTIA Cybersecurity Analyst - Certified Information System Auditor (Cisa) - DoD IAT Level II Certification - Software Deployment - Problem Solving - SIPRNet - Python - Trend Analysis - DoD 8140 (Cyberspace Workforce) - Security Content Automation Protocol - Tanium Software - Creative Thinking - NIPRNet - Plan of Action and Milestones (Poa&m) - Endpoint Security - Certified Information Systems Security Professional - SQL - Assured Compliance Assessment Solution (Acas) - Health Monitoring - Systems Security Certified Practitioner - Risk Acceptance - JWICS (Joint Worldwide Intelligence Communications System) - Windows PowerShell - Service Delivery - Configuration Management - Global Industrial Cyber Security Professional - Tenable - Vulnerability Scanning - Exception Management - Coordinating - Information Assurance - Asset Management - Nessus - Microsoft Defender for Endpoint - Standard Operating Procedures (Sop) - Operational Risk - Leadership - Security Technical Implementation Guides (Stig) - Maintenance - Microsoft Windows - Data Quality - Trellix - Linux - Ticketing - Data Analysis - Creativity - Customer Experience - Vulnerability Management - Governance - Virtualization - Equities - Top Secret-Sensitive Compartmented Information (Ts/sci Clearance) - Policy Administration - CompTIA Security+ ## Benefits - Professional Development - Health Insurance - Dental Insurance - Vision Insurance - Disability Insurance - Life Insurance - Paid Time Off (Pto) - 401(k) Plans - Other Retirement and Savings ## Related - [Technology & Software jobs](https://www.foundrole.com/careers/technology-and-software?utm_source=ai_markdown)- [Cybersecurity jobs](https://www.foundrole.com/careers/technology-and-software/cybersecurity?utm_source=ai_markdown)- [Security Analyst jobs](https://www.foundrole.com/careers/technology-and-software/cybersecurity/security-analyst?utm_source=ai_markdown)- [Browse all companies](https://www.foundrole.com/companies?utm_source=ai_markdown) ## Related pages - [IT Services and Consulting](https://www.foundrole.com/sectors/technology/it-services-and-consulting?utm_source=ai_markdown) — 150241 jobs - [Virginia](https://www.foundrole.com/locations/us/virginia?utm_source=ai_markdown) — 99848 jobs ## Browse - [Companies](https://www.foundrole.com/companies?utm_source=ai_markdown) - [Jobs by country](https://www.foundrole.com/locations?utm_source=ai_markdown) - [Jobs in the United States by state and city](https://www.foundrole.com/locations/us?utm_source=ai_markdown) - [H1B sponsors by location](https://www.foundrole.com/h1b-sponsors?utm_source=ai_markdown) - [H1B salaries](https://www.foundrole.com/h1b-salaries?utm_source=ai_markdown) - [Sectors and industries](https://www.foundrole.com/sectors?utm_source=ai_markdown) - [Jobs by career field](https://www.foundrole.com/careers?utm_source=ai_markdown) - [Latest jobs](https://www.foundrole.com/jobs/latest?utm_source=ai_markdown)