> Markdown version of [/jobs/ext/4520341-tenable-acas-security-engineer](https://www.wearedevelopers.com/jobs/ext/4520341-tenable-acas-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Tenable (ACAS) Security Engineer - **Company:** Everforth Apex - **Location:** Montgomery, AL, United States - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Cloud Computing, Linux System Administration, Software Vulnerability Management, Nessus, Vulnerability Analysis - **Published:** November 1, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9268900/tenable-acas-security-engineer ## About the Role * Expert administration of Tenable Security Center and Nessus, including scan policies, scan zones, repositories, credentials, and audit files. * Hands-on experience performing credentialed vulnerability scans, STIG compliance scans, discovery scans, and port scans. * Strong understanding of STIGs, CKLs, ACAS/Tenable findings, and vulnerability remediation processes. * Strong Windows and Linux administration skills supporting authenticated vulnerability scanning. * Strong collaboration skills for working with Cloud, Network, Platform, Security, and Engineering teams to drive remediation and system hardening. * False Positive Analysis & Validation * Scan Coverage, Asset Discovery, and Gap Analysis