> Markdown version of [/jobs/ext/3038943-information-systems-security-engineer-isse-ts-sci](https://www.wearedevelopers.com/jobs/ext/3038943-information-systems-security-engineer-isse-ts-sci). 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 Systems Security Engineer (ISSE) -TS/SCI - **Company:** Sunayu, LLC - **Location:** Arlington, VA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Systems Engineering, Cyber Security, Information Systems, Computer Literacy, Data Transmissions, Subnetting, McAfee VirusScan, Red Hat Enterprise Linux, Security Content Automation Protocol, Server Virtualization, Information Technology, Nessus, Network Server - **Published:** September 23, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9187795/information-systems-security-engineer-isse-tssci ## About the Role * Qualified candidates must possess a TS/SCI security clearance. * Security+ * 5+ years of experience in understanding all aspects of systems engineering, including design and architecture. * Demonstrated capability to identify security risks throughout information system network structures to include the Operating Systems, hardware, and various data transfer protocols. * Effective communication and presentation skills (i.e., ability to present ideas effectively in formal and informal situations in group and individual settings). * Strong planning, organizational, and time management skills (i.e., ability to effectively plan, organize, and prioritize work, and to control and follow up to assure work completion). * Demonstrated initiative (i.e. initiate appropriate action without being directed) and ability to work independently., * A bachelor's degree in computer science, information technology, or related. * Education and experience requirements may be substituted with: * + A master's degree (in subjects described above) and 3 years of experience. + No degree with 12 years of intensive and progressive experience demonstrating the required proficiency levels related to the task. ## Description * Responsible for building, deploying and Patching HBSS Windows and ACAS RedHat Linux 7.9 and 8 servers. * Responsible for building, maintaining, and patching all ePO, Security Center, and Nessus servers. * Provides Security Center accounts for Vulnerability Managers to scan devices within ACAS. * Experience with ACAS scan results and how to remediate vulnerability findings.Knowledge of the process of obtaining licenses for all HBSS ePO's and Tenable Security Centers. * Expertise in the process of obtaining HBSS and ACAS kickstart ISOs from DISA. * Extensive knowledge of building virtual servers, deploying, and patching all McAfee modules via the ePO, configuring McAfee policies for each environment STIGing HBSS Windows OS,McAfee policies to comply with benchmarks (Not reviewing or confirming), STIGing ACAS RHEL servers. * Ability to Run SCAP scans on Windows and RHEL servers. * Displays knowledge of updating RedHat 7.9 and 8 as they are released * Setup RedHat yum local rpm repositories to patch offline ACAS servers. * Deploying Rogue sensors on each subnet * Identifying Rogue subnets and, rogue endpoints. * Able to troubleshoot Security Center and Nessus scanner issues., + To include designing the basic computing infrastructure to accomplish key tasks, establishing networking rules for cybersecurity, and troubleshooting network errors or other technical issues. * Lead the development of technical solutions, from refining customer requirements through design, build, test, and deployment. * Document and communicate technical solutions and results of analyses leading to recommended courses of action. ## Related Videos - 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