> Markdown version of [/jobs/ext/4705919-information-system-security-engineer-isse-l4-ts-sci-clearance](https://www.wearedevelopers.com/jobs/ext/4705919-information-system-security-engineer-isse-l4-ts-sci-clearance). 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) - L4 (TS/SCI Clearance) - **Company:** Insight Global - **Location:** Beavercreek, OH, United States - **Contract:** Permanent contract - **Skills:** Cloud Computing, Information Security Management, Security Content Automation Protocol, Security Software, Software Deployment, Backend, Nessus, Splunk - **Published:** November 13, 2026 - **Apply:** https://dejobs.org/x/x/99F9CC21B82543FFAAF38086C2BB072D/job/ ## About the Role Active TS/SCI Clearnce (Preferably 5+ years in SCI environment) 1+ year of experience in leadership Splunk experience taking request from clients, not just building the dashboards Recent ACAS experience - troubleshooting, not just setting it up Manage Trellix ePO endpoint security, including custom policies, software deployments, and security content updates. Develop, maintain, and update technical documentation, including System Security Plans (SSPs), engineering diagrams, and implementation guides. Must be willing to travel up to 25% ## Description In this role, you will provide engineering, administration, and sustainment for a suite of cybersecurity tools - including Splunk, Nessus/ACAS, Trellix ePO, and STIG/SCAP - supporting the development and sustainment of secure enclaves at the edge that deliver enterprise services and cyber network defense capabilities across the DoD. You will perform technical security assessments to identify vulnerabilities and non-compliance with Information Assurance standards, and recommend mitigation strategies to the ISSM/ISSO. Day to Day: Backend experience with these security tools Troubleshooting, administering etc - cloud environment (not on prem) Building the server & troubleshooting why scan/results are not coming through Working directly with the agents and end points