JOBSEARCHER

Principal Windows Systems Administrator with Security Clearance

AsdEl Segundo, CAMay 28th, 2026
ResponsibilitiesPerform as a Windows System Administrator for a classified government contract.Able to communicate effectively at all levels of the organization, with internal or external customers, in written and oral format.Maintain smooth operation of multi-user computer systems, including coordination with network, software, and system engineers, PC desktop technicians, project managers, end users, and customer and IT management.Able to support multiple networks. Ensure necessary administration tasks are completed, direct others as necessary.Analyze internal or external customer requirements and determine equipment and software requirements for solutions to problems by means of automated systems.Recommend and implement system enhancements that will improve the performance and reliability of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management.Provide backup and recovery services; manage file systems and disk space; manage virus protection on a routine basis.Create and maintain user and computer accounts and modify file permissions and security access lists.Test new releases of products to ensure compatibility and minimize user impact.Develop and document technical processes and procedures as needed.Make recommendations to purchase hardware, software, system components.Interact, meet, discuss, and troubleshoot issues with vendors; evaluate vendor products, services, and suggestions.Adhere to strict Information Systems security guidelines in all cases.Maintain security audit and logging information on all classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).Prepare security documentation for input to Computer Security.Report project status as required for all recurring and non-recurring efforts.Works under minimal direction and independently determines and develops approach to solutions.Work across disciplines to isolate issues between software, firmware, and hardware, between software and operating systems, between networks and applications, and between one-time events and recurrent systematic problems.Lift equipment weighing up to 40 pounds.Work after hours, and weekends, as needed.Basic Qualifications For Principal Windows Systems AdministratorMaster's Degree with 3 years of IT experience; OR a Bachelor's Degree with 5 years of IT experience; OR an Associate's Degree with 7 years of IT experience; OR a High School Diploma/GED with 9 years of IT experience is requiredMust have a DOD 8570 IAT Level II, or higher, certification (example: Security+ CE); maintaining the required certification will be a condition of continued employmentExperience managing Windows Server OSExperience with designing Windows domain architectures, including but not limited to Active Directory, GPOs, Policies, and permissionsCandidates must have a current DOD Top Secret/SCI security clearance to include a current/recent Polygraph that was adjudicated within the last 5 years (at a minimum) in order to be consideredCandidates must have the ability to obtain, and maintain, access to Special Programs as a condition of continued employmentPreferred Qualifications For Principal Windows Systems AdministratorThe ideal candidate will have a Bachelor's degree in Information Technology, a Security+ CE, MCSE (or similar Microsoft cert), and 6 years of Windows Server, VMWare, Active Directory, Microsoft Exchange, and Group Policy administration in a classified environmentDoD 8570 Certification in a primary Operating System (Windows, Linux, Cisco)Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environmentsUnderstanding of basic networking, including subnets, routing, and VLANs; Cisco experience and/or certificationCreation and deployment of system images in an enterprise environmentExperience installing, configuring, and maintaining computer hardware in a networked environmentWindows server management experienceWindows AD, LDAP, VMWare, and knowledge of SAN storage systemsLinux Operating System experience and/or certification for current versionsRed Hat certification for current versionVMWare experience with current versionKnowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk)Mid to Advanced level Scripting experienceExperience with the creation and deployment of system images in an enterprise environmentExperience with Certification & Accreditation processActive TS/SCI with Polygraph and a SAP/SAR access level preferred