> Markdown version of [/jobs/ext/1708570-senior-systems-administrator-desktop](https://www.wearedevelopers.com/jobs/ext/1708570-senior-systems-administrator-desktop). 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). --- # Senior Systems Administrator - Desktop - **Company:** HII Mission Technologies - **Location:** Port Hueneme, CA, United States - **Experience:** Expert - **Salary:** $95,000.0 - $135,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Application Packaging, Microsoft App-V, System Configuration, System Center Configuration Manager, Network Connections, Citrix Systems, Productivity Software, Remote Desktop Services, Break Fix, Peripherals, Information Technology - **Published:** July 10, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9021773/senior-systems-administrator-desktop ## About the Role 5+ years progressively responsible IT desktop administrator experience Demonstrated proficiency and expertise in the following: - Deploying and managing Windows or ThinLinux end-client solutions - Providing support to a variety of EUC platforms and applications such as thick, thin, and zero clients with Citrix Zendesktop, appV, and Windows Terminal Services - Installing, configuring, monitoring, and troubleshooting Microsoft and third-part applications - Patching operating systems and applications via MECM/SCCM, to include research, testing, installation, troubleshooting, and rollback. - Applying and maintaining a standard security configuration based on SRGs and STIGs. Must meet DoD 8140/CSWF for 451-Intermedediate or be willing to obtain the appropriate credential within 6 months Active TS/SCI government security clearance required to start Level Qualifications Systems Administrator 2: 3 years relevant experience with Bachelors in related field; 1 year relevant experience with Masters in related field; or High School Diploma or equivalent and 7 years relevant experience. Systems Administartor 3: 6 years relevant experience with Bachelors in related field; 4 years relevant experience with Masters in related field; or High School Diploma or equivalent and 10 years relevant experience. Systems Administrator 4: 10 years relevant experience with Bachelors in related field; 8 years relevant experience with Masters in related field; or High School Diploma or equivalent and 14 years relevant experience. ## Description HII's Mission Technologies division is dedicated to delivering cutting-edge solutions that advance national security and defense objectives. This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations. The selected candidate will contribute to a high-impact government program focused on enhancing and securing mission-critical systems and environments. The program is scheduled to launch in early 2026 and due to the classified nature of the mission and the sensitivity of the operational environment, an active TS/SCI security clearance will be required. This role is responsible for providing technical support in the organization's end-user computing environment. You will work closely with stakeholders to ensure timely resolution of technical issues. In addition to hands-on troubleshooting, this role assists with maintaining system security, supporting hardware and software lifecycles, and ensuring reliable day-to-day operation of end-user technology. This is an excellent opportunity to bring your technical knowledge to a growing team and help support our mission Systems Administrator 2: $95,432 - $125,087 Systems Administartor 3: $107,176 - $145,680 Systems Administrator 4: $122,394 - $165,563 You will provide advanced desktop support and hands-on troubleshooting for end-user computing environments, ensuring users have reliable, secure, and well-functioning workstations, peripherals, and productivity tools. In this role, you apply mid- to senior-level expertise to diagnose complex issues, support hardware and software lifecycles, and maintain a high-quality user experience across the organization. Key responsibilities include resolving escalated service desk tickets, performing workstation deployments and configurations, and supporting operating system and application updates. You will troubleshoot Windows, and Citrix issues; configure and maintain endpoint security tools; and support peripheral devices, network connectivity, and user authentication problems. You may also participate in hardware lifecycle planning, software packaging and distribution, and documentation of support procedures. 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