> Markdown version of [/jobs/ext/1423623-system-admin-l3-ts-sci-poly-required](https://www.wearedevelopers.com/jobs/ext/1423623-system-admin-l3-ts-sci-poly-required). 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). --- # System Admin L3 - TS/SCI Poly required - **Company:** EMTAK. LLC - **Location:** San Antonio, TX, United States - **Contract:** Permanent contract - **Skills:** Monitoring of Systems, Issue Tracking Systems, Network Troubleshooting, Data Logging, Network Routers, Computer Network Operations, Sysadmin, System Availability - **Published:** July 24, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9052849/system-admin-l3-tssci-poly-required ## About the Role * Bachelor's degree with fifteen (15) years of relevant experience; OR * Twenty (20) years of relevant experience with no degree required., * Experience supporting enterprise telecommunications and network environments. * Familiarity with router and switch configuration and maintenance. * Experience with infrastructure monitoring and ticketing systems. * Strong troubleshooting and communication skills. * Ability to operate effectively in a fast-paced operational environment. Clearance Requirement * Active TS/SCI clearance required. ## Description This role requires close coordination with ISP and Gateway GES watch staff, customers, and technical support personnel to ensure timely response, notification, and resolution of operational events and infrastructure issues., * Perform installation, maintenance, and repair of telecommunications systems. * Provide 24/7 mission and infrastructure monitoring, notification, administrative support, logging, ticketing, and reporting for supported systems. * Coordinate with ISP and Gateway GES watch staff to maintain situational awareness and support operational response actions. * Coordinate with customers and support personnel to provide event notification, troubleshooting, and response activities. * Perform router and switch updates in support of security actions and infrastructure maintenance activities. * Support network operations and ensure system availability within mission environments. * Document operational activities, incidents, and maintenance actions. * Assist with troubleshooting network, telecommunications, and infrastructure issues. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Hacking MSSQL on Cloud. All of them. How I became sysadmin on Azure, AWS, GCP and Alibaba.](https://www.wearedevelopers.com/videos/100339-hacking-mssql-on-cloud-all-of-them-how-i-became-sysadmin-on-azure-aws-gcp-and-alibaba) - [Crypto-secure Data Management with In-Database Blockchain](https://www.wearedevelopers.com/videos/632-crypto-secure-data-management-with-in-database-blockchain) - [Modern Web Development with Nuxt3](https://www.wearedevelopers.com/videos/294-modern-web-development-with-nuxt3) - [Fake or News: Self-Driving Cars on Subscription, Crypto Attacks Rising and Working While You Sleep - Théodore Lefèvre](https://www.wearedevelopers.com/videos/1793-fake-or-news-self-driving-cars-on-subscription-crypto-attacks-rising-and-working-while-you-sleep-theodore-lefevre) - [Build Delightful Mobile Experiences with Kotlin, Realm, and Atlas Device Sync](https://www.wearedevelopers.com/videos/694-build-delightful-mobile-experiences-with-kotlin-realm-and-atlas-device-sync) ## Related Articles - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)