Milton S. Chamblee III

Senior Vulnerability Management Engineer and Security Compliance professional with 9 years of experience securing large, regulated, DoD-aligned enterprise environments. Administers Tenable Security Center 6.8 and distributed Nessus infrastructure supporting 55,000 licensed IPs, 25,000+ Nessus Agents, 13 Managers, and 11 scanners. Leads credentialed, Agent-based, and compliance scanning; risk-based prioritization; remediation validation; POA&M and waiver support; and CMMC audit-evidence generation. Combines RHEL platform engineering, PKI/TLS, API automation, and stakeholder reporting with RMF, NIST SP 800-53/171, CMMC Level 2, DISA STIG, DFARS, and FISMA expertise.

CompTIA Security+

• (ISC)² Member

Reduced overdue vulnerabilities by 87% through risk-based prioritization, ownership accountability, remediation tracking, and administrator follow-up.

Reduced average vulnerability-remediation time from 14.5 days to 5.6 days and lowered administrator triage effort from 3.4 hours to approximately 1 hour per week through automated reporting and workflow improvements.

Supported a 98% monthly remediation rate across enterprise vulnerability-management operations through Tenable.sc scanning, Archer GRC tracking, escalation, and post-remediation validation.

Supported enterprise Nessus Agent modernization across approximately 25,000 endpoints and 2,800 servers, including 12 Nessus Managers and 10 enclave deployments, to improve authenticated scanning coverage and reduce credential-management overhead.

Developed Tenable.sc host-level queries and audit evidence supporting CMMC requests, enterprise waiver documentation, vulnerability exceptions, POA&M workflows, and remediation governance.