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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal / Sr. Principal System Administrator - **Company:** Northrop Grumman - **Location:** Colorado Springs, CO, United States - **Experience:** Expert - **Salary:** $94,200.0 - $141,200.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Configuration Management, Cyber Security, Information Systems, Linux, RAID, File System Permissions, IT Management, NetApp Applications, Data ONTAP (Server Appliance), Red Hat Enterprise Linux, Ansible, Information Technology Security Auditing, Server Administration, Microsoft SharePoint, Software Requirements Analysis, Data Logging, Storage Devices, Tanzu, Kubernetes, Information Technology, Wikis, National Industrial Security Program Operating Manual (NISPOM), Puppet, Cisco - **Published:** October 23, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3472080286&tx=UT545TYI&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Level 3 : 5 Years with Bachelors; 3 Years with Masters; 1 Year with PhD. 4 additional years of experience is required in lieu of a degree. * Level 4 : 8 Years with Bachelors; 6 Years with Masters; 4 Years with PhD. 4 additional years of experience is required in lieu of a degree. * Must have at least 1 year of server administration experience with RHEL. * Must have a DoD 8570 IAT Level II baseline certification (example: Security+ CE), or have the ability to obtain one within 6 months of start date as a condition of continued employment. * Ability to lift equipment weighing up to 40 pounds. * Ability to work after hours and weekends as needed. * United States citizenships is required in order to be considered. * Must have an active U.S. Government Secret security clearance at time of application, current and within scope., * Master's degree in a STEM related discipline, a RedHat Certified Engineer certification, a Security+ CE, and 5+ years of experience with server administration in an SCI classified environment. * Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments. * Experience with Trusted Guard. * Tanzu/Kubernetes deployments. * RHEL System Administration certification(s). * Experience with NAS storage device (preferably NetApp) administration (ONTAP 8.x or higher; CDOT). * Solid understanding of Enterprise-level storage concepts to include all commonly-used RAID-levels. * Satellite configuration and usage experience. * Solid understanding of remediating security vulnerabilities and experience hardening Linux systems in accordance with RMF and STIGs. * Ansible, Puppet, RHEL 7, Satellite Experience. * Solid writing skills and experience using Wiki pages and SharePoint sites for documentation. * DoD 8570 Certification in a primary OS (Windows, Linux, Cisco). * Currently valid Security+ CE, CASP, CISSP, or similar security certification. * An active U.S. Government Top Secret security clearance at time of application, current and within scope, with the ability to obtain and maintain SCI approval/access. ## Description Northrop Grumman Space Systems (NGSP) is looking for you to join our team as a Principal or Sr. Principal System Administrator based out of Colorado Springs, Colorado. * Perform as a Linux Systems Administrator on large, classified government contracts. * Communicate effectively at all levels of the organization, with internal and external customers, in written and verbal formats. * 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. * Support multiple networks. * Ensure necessary administration tasks are completed and direct others as necessary. * Analyze internal and 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. * Create and maintain u * ser 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, and 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 Cyber Security team. * Report project status as required for all recurring and non-recurring efforts. * Work under minimal direction and independently determine and develop approach to solutions.