Type of Requisition:RegularClearance Level Must Currently Possess:Top Secret/SCIClearance Level Must Be Able to Obtain:Top Secret SCI + PolygraphPublic Trust/Other Required:NoneJob Family:IT Infrastructure and OperationsJob Qualifications:Skills:Computer Systems, End Users, IT Tech Support, NetworksCertifications:NoneExperience:3 + years of related experienceUS Citizenship Required:YesJob Description:Ensure the safety and security of our nation as a Systems Administrator Senior at GDIT. You’ll apply the latest technology and provide operational support to deliver actionable intelligence for the Intelligence Community. Here, your work will have meaning and impact as you deliver your best every day.At GDIT, people are our differentiator. As the Systems Administrator Senior, you will help ensure today is safe and tomorrow is smarter. Our work depends on the Systems Administrator Senior joining our team to lead a mission critical team that supports the deployment of systems and capabilities centered on our comprehensive motion imagery software suite. The selected Systems Administrator Senior will work alongside various teams and focus on ensuring the mission is met while upgrading to cutting-edge technologies in full motion video (FMV) of the programs technical vision.HOW SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT: Maintains an organization's computer systems' workflows and is responsible for the upkeep, configuration, and reliable operation of computer systems, including fixing network issues along with updating equipment and softwareDevelops advanced technical solutions for the management of networks, software, hardware, configurations, and architecturesTroubleshoots highly complex system hardware and software issuesDevelops training materials for end users on the proper use of hardware and softwareDevelops implementation plans for software installations and upgrades to operating systems and layered software packagesMonitors and tunes systems to achieve optimum performance levelsEnsures workstation/server data integrity by implementing standard software and hardware solutionsLeads efforts to ensure data/media recoverability by following a schedule of system backups and database archive operationsConducts advanced hardware and software audits of workstations and servers to ensure compliance with established standards, policies, and configuration guidelinesDevelops performance and security plans for computers that meet the needs of network usersEvaluates existing systems and plans long-term strategiesSupport analysts performing Full Motion Video TCPED and various phases of exploitationReport information through weekly site communications group meetings, weekly status reports, and monthly logs to team members and managementDashboard creation and analytic monitoring using either Splunk or Elastic StackWork with the customer’s network engineering group, as needed, to resolve any networking or firewall issue.Work with the GDIT systems engineering group, as needed, to resolve any system issue.Support GDIT factory reach back helpdesk in solving daily user issues.Support sandboxed site operations (warehouse) by verifying OSes have patch updates applied and system backups are working, etc.).Become an expert in understanding daily operations, networks, and systems.WHAT YOU’LL NEED TO SUCCEED: The position requires an active TS/SCI with Polygraph clearance3+ years of related experienceBachelor of Science in Engineering, or a related specialized area/field, OR equivalent 7 years job-related experienceSkilled at applying and executing highly advanced technologies, principles, theories and conceptsProficient understanding and application of engineering principles, concepts, practices, and standardsDemonstrated ability to communicate issues, impacts, and corrective actionsDemonstrated ability to easily and effectively communicate project topics to a diverse audienceDemonstrated ability to clearly report relevant informationDemonstrated ability to anticipate technology, process, and skill needsProven problem-solving skills in complex environmentsLocation: At Customer Site – Herndon areaGDIT IS YOUR PLACE:401K with company matchComprehensive health and wellness packagesInternal mobility team dedicated to helping you own your careerProfessional growth opportunities including paid education and certificationsCutting-edge technology you can learn fromRest and recharge with paid vacation and holidays#GDITCareers#GDITPolyEvent#GDITEnhanced2026#MissionPoly2026#VA_2026Alumni#CJPost#JetThe likely salary range for this position is $114,750 - $155,250. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.Scheduled Weekly Hours:40Travel Required:NoneTelecommuting Options:OnsiteWork Location:USA VA HerndonAdditional Work Locations:Total Rewards at GDIT:Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. Our Identity Verification Process:As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes. About Our Work:We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events atgdit.com/tc.Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans