Windows Systems Administrator Security Clearance

Position: Windows Systems Administrator with Security Clearance
Location: Dayton

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- Description If you're interested in being a part of an extraordinary mission, working with our customer who runs the DoD’s largest supercomputing centers and operating some of the most powerful supercomputers in the world, we could use your experience and enthusiasm! You will be providing your Windows Systems Administration expertise to ensure DoD scientists have reliable access to these critical resources and in turn, will be directly supporting the warfighter.

All work will be performed at our customer’s site on Wright Paterson Airforce Base, OH. A Secret Clearance is required to begin work on the program. So, what will you be doing in this role?
* Install, configure, and manage Windows workstations using imaging processes
* Test, schedule and deploy patches in a timely and non-disruptive manner which can include following a weekly or quarterly patching cadence to ensure compliance with established standards, policies, and configuration guidelines

* Perform tasks in Active Directory, GPO's, OUs ensuring Principle of Least Privilege
* Review, test and implement quarterly DISA STIGs
* Deploy and maintain monitoring tools to review system bottlenecks and other issues before they impact end-user
* Develop site innovations to automate tasks and minimize manual repeatable low level tasks
* Use Service Now ticket system to track and respond to issues and end-user problems.
* Perform systems enhancement, configuration, maintenance, installation, interfaces, coordination, and software installations and upgrades to Windows operating systems and layered software packages.

* Monitor and tune systems to achieve optimum level of performance in accordance with established policies, procedures, and service level agreements.

* Perform acceptance testing of modules, subsystems, and total systems. Will be responsible to perform software installation and configuration.

* Demonstrate the ability to set priorities and organize work to meet deadlines These are the required qualifications
* Must hold an active in scope SECRET clearance or have the ability to obtain Interim SECRET eligibility prior to start. (US Citizenship required)

* Must hold a bachelor’s degree and at least 4 years of equivalent experience, or a master’s degree and 2 years of experience.

* Must hold current DOD 8570 IAT II certification which includes a computing environment (Server+, AZ800, or AZ801) and an appropriate security cert (CCNA-Security, CND, CySA+, GICSP, GSEC, Security+ CE, or SSCP) prior to start.

* Communicates effectively both orally and in a written form with users and office staff These are the preferred qualifications
* Configuration management experience

* Hands-on experience patching systems and applications within a DoD environment

* Ability to write, diagnose, and optimize scripts written in Power Shell, Python, or Perl If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:
February 18, 2026 For U.S. Positions:
While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:
Pay Range $73,450.00 - $ The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual…