Systems Administrator - Senior - TS/SCI - Fort Shafter, HI

Global Dimensions is a HUBZone, service disabled, veteran-owned small business based in Fredericksburg, VA. We are a dynamic, expanding company with exciting opportunities in language/culture, training/education/instruction, IT, cyber security, and intelligence (analysts, CI, HUMINT, SIGINT, etc.). Global Dimensions is seeking a Systems Administrator for upcoming opportunities at Fort Shafter, in Honolulu, HI. Requirements TS/SCI Security Clearance CompTIA Security+ and/or DoD 8570-compliant IAT Level II Certification MA/MS degree +10 years of hands-on experience in system or network administration, or a closely related technical field. OR Bachelor's degree +18 years experience OR Associate's degree +22 years experience Strong analytical and communication skills, with a proven ability to effectively engage both technical and non-technical stakeholders and collaborate with internal teams and external partners. Skilled in managing simultaneous tasks, projects, and priorities while ensuring deadlines and customer requirements are consistently met. Highly organized in documenting system configurations and procedures, and in generating detailed reports on system performance, incidents, and maintenance operations. Proficient in delivering end-user technical support, including system performance monitoring, hardware/software troubleshooting, network optimization, backup and recovery management, and applying system updates and patches. Capable of installing, configuring, administering, and maintaining network infrastructure (e.g., switches, routers, firewalls), as well as managing both physical and virtual Windows server environments. Experienced in user account lifecycle management across multiple systems, including account creation, provisioning, permission management, and deactivation. Solid understanding of core networking protocols such as TCP/IP, DNS, and DHCP. Skilled in scripting with languages like Python, Bash, or PowerShell. Familiar with virtualization technologies like VMware, Hyper-V, and KVM, as well as cloud platforms such as AWS, Azure, and Google Cloud. In-depth knowledge of cybersecurity tools, practices, and principles. Desired Previous experience supporting the Intelligence Community or working on classified programs for the DoD, Army, or Joint Staff. Background as a U.S. Army Information Management Officer and/or experience coordinating with entities such as Signal Brigades, INSCOM, DoD CIO, DIA, GISA, or NEC. Hands-on experience with unified communications tools and systems including VoIP phones, DVTC, and VTC setup and management. Working knowledge of database platforms such as MySQL, PostgreSQL, and SQL Server, as well as web server technologies like Apache, Nginx, and IIS. Able to support planning and execution of IT initiatives including migrations, upgrades, and new technology rollouts. Demonstrated ability to collaborate effectively with technical teams, government clients, and other stakeholders to troubleshoot, improve, and implement IT solutions. Familiarity with Agile, Kanban, or other modern project management tools and methodologies. Certifications such as CISSP, CompTIA Network+, or ITIL. Global Dimensions does not discriminate on the basis of race, sex, color, religion, age, national origin, marital status, disability, veteran status, genetic information, sexual orientation, gender identity or any other reason prohibited by law in provision of employment opportunities and benefits. Equal Opportunity Employer/Veterans/Disabled.