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Salary Statement Estimated Starting Salary Range: USD $132,250.00/Yr. - USD $220,400.00/Yr. Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data. Description The Senior Systems Administrator provides senior-level system administration, integration, and sustainment support for mission-critical applications and systems supporting United States Space Command. This role performs installation, upgrades, daily operations, backups, troubleshooting, and lifecycle maintenance across virtualized environments, physical servers, storage systems, and specialized mission applications. Work is performed with minimal supervision and requires advanced technical expertise, strong communication skills, and the ability to support geographically dispersed customers and engineering teams. The Systems Administrator will be responsible for: * Supporting system administration for United States Space Command mission systems, including lab environments and operational sites * Assisting engineering teams during software integration, testing, PITCO, SOVT, and installation events * Providing troubleshooting and technical support for hardware/software discrepancies identified during installation or after * Supporting secure system configurations, cybersecurity compliance, and RMF-aligned hardening activities * Assisting with activities for United States Space Command's transition to Red Stone Arsenal * Participating in technical meetings with NIWC Pacific, United States Space Command, OEMs, and contracting partners #LI-LH1 Requirements * Experience & Leadership: 10+ years managing a Department of Defense (DoD) Windows enterprise environment, leading technical operations, and authoring process documentation. * Virtualization & VDI: Hands-on administration of Nutanix HCI environments and/or Citrix CVAD (Virtual Apps & Desktops) deployments, alongside general enterprise virtualization (e.g., VMware ESXi, Dell VxRail) and VDI ecosystems. * Systems Administration: Advanced management of Microsoft Group Policy Objects (GPOs), software/patch management (WSUS, MECM, SCCM), SQL Server (Always On availability groups), and air-gapped enterprise licensing. * Security & Compliance: Deploying DISA STIGs, hardening Windows 10/11 endpoints, and managing Public Key Infrastructure (PKI) certificates. * Hardware & Facilities: Engineering desktop deployment solutions (selecting and installing peripherals/KVMs), supporting C4IT facility procurement, and the physical ability to handle and lift up to 50 lbs of hardware. * Advanced Networking & Traffic Management: Strong understanding of OSI model, routing/switching, packet analysis (Wireshark, tcpdump), and experience configuring mainstream load balancers (F5, NetScaler) and Global Server Load Balancing (GSLB). * Technical Engineering & Design: Ability to research and translate vendor white papers and industry best practices into scalable system designs, paired with strong technical communication skills. * Certifications: Active DoD 8570 IAT Level II (e.g., Security+ CE, CCNA Security) and a professional-level VDI administration certification. Desired Skills * Education & DoD Environment Context: Bachelor's degree in a related discipline (or equivalent experience) and experience supporting high-tempo operational DoD environments (e.g., COCOMs, Joint Operations Centers, or Service Branch enterprise networks). * Cloud & Modern SaaS: Experience administering Amazon Web Services (AWS) environments and fielding Microsoft 365 solutions. * Specialized DoD Security & Identity Systems: Experience managing DoD Host Based Security System (HBSS), configuring Axway Tumbleweed/OCSP solutions, and managing Cross-Domain Solutions like Everfox (Forcepoint/Raytheon) Trusted Thin Client. * Core Infrastructure & Automation: Proficiency in PowerShell automation, managing advanced DNS/DHCP configurations (Infoblox or Windows Failover Cluster), and managing Service Principal Names (SPNs). Clearance Information SRC IS A CONTRACTOR FOR THE U.S. GOVERNMENT. THIS POSITION WILL REQUIRE U.S. CITIZENSHIP AS WELL AS A U.S. GOVERNMENT SECURITY CLEARANCE AT THE TOP SECRET / SCI LEVEL. Travel Requirements * No Travel Required About Us Scientific Research Corporation is an advanced information technology and engineering company that provides innovative products and services to government and private industry, as well as independent institutions. At the core of our capabilities is a seasoned team of highly skilled engineers and scientists with multidisciplinary backgrounds. This team is challenged daily to provide cutting edge technology solutions to our clients. SRC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with a company match, life insurance, vacation and sick paid time off accruals with amounts increasing based on role and years of service, 11 paid holidays, tuition reimbursement, and a work environment that encourages excellence and more. For positions requiring a security clearance, selected applicants will be subject to a government security investigation and must meet eligibility requirements for access to classified information. EEO Scientific Research Corporation is an equal opportunity employer that does not discriminate in employment. All qualified applicants will receive consideration for employment without regard to their race, color, religion, sex, age, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other protected characteristic under federal, state or local law. Scientific Research Corporation endeavors to make www.scires.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact for assistance. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications.