> Markdown version of [/jobs/ext/4564397-information-system-security-engineer-isse](https://www.wearedevelopers.com/jobs/ext/4564397-information-system-security-engineer-isse). 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). --- # Information System Security Engineer (ISSE) - **Company:** JCS Solutions LLC - **Location:** Washington, VA, United States - **Experience:** Expert - **Salary:** $90,000.0 - $129,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Computing Platforms, Systems Engineering, CompTIA Security+, Information Systems, Data Transmissions, Information Security Management, McAfee VirusScan, Windows Servers, Red Hat Enterprise Linux, Security Content Automation Protocol, Information Technology, Nessus, Network Server - **Published:** November 4, 2026 - **Apply:** https://www.thejobnetwork.com/job/471c9ac6-891f-4c9c-9322-5eabd1d081a6/information-system-security-engineer-isse ## About the Role * Active TS/SCI security clearance. * Current Security+ certification (or equivalent DoD 8140 IAT Level II certification): + CompTIA Security+ CE (required) + CompTIA CySA+ + CCNA Security + GSEC + SSCP * Bachelor's degree in Computer Science, Information Technology, or a related field; or a Master's degree in a related field with 3 years of relevant experience. * In lieu of a degree, 12 years of intensive, progressive experience demonstrating the required proficiency may be substituted. * 5+ years of experience with all aspects of systems engineering, including design and architecture. * Demonstrated capability to identify security risks throughout information system network structures, including operating systems, hardware, and data transfer protocols. * Effective communication and presentation skills with the ability to present ideas effectively in formal and informal group and individual settings. * Strong planning, organizational, and time management skills, including the ability to effectively plan, organize, prioritize work, and follow through to completion. * Demonstrated initiative and ability to work independently. ## Description Job DescriptionGrow, innovate, and generate progress: Harness your expertise to solve challenges and celebrate success!, * Establish networking and security controls to ensure compliance with cybersecurity standards. * Lead technical solution development from requirements refinement through design, build, testing, and deployment. * Document technical solutions, analyses, recommendations, and courses of action. * Perform and review technical security assessments of computing environments. * Identify system vulnerabilities, cybersecurity compliance gaps, and recommended mitigation strategies. * Build, deploy, maintain, and patch HBSS Windows servers and ACAS Red Hat Enterprise Linux (RHEL) 7.9 and 8 servers. * Build, maintain, and patch ePO, Security Center, and Nessus infrastructure. * Provision Security Center accounts for Vulnerability Managers. * Analyze ACAS scan results and support remediation of vulnerability findings. * Obtain and manage required licenses for HBSS ePO and Tenable Security Center platforms. * Obtain HBSS and ACAS kickstart ISOs through DISA processes. * Build virtual servers and deploy McAfee modules through ePO. * Configure and maintain McAfee policies across multiple environments. * Apply STIG requirements to Windows operating systems, McAfee configurations, and ACAS RHEL servers. * Conduct SCAP scans on Windows and RHEL systems. * Maintain Red Hat repositories and update RPM packages for disconnected environments. * Configure local YUM repositories to support offline ACAS server patching. * Deploy and manage Rogue System Detection sensors across network segments. * Identify rogue subnets and unauthorized endpoints. * Troubleshoot Security Center and Nessus scanner issues. * Support cybersecurity risk assessments and security engineering activities.