Sr Principal Linux Systems Administrator - Secret - R10210536

About the Company

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people’s lives around the world today and for generations to come. Our pioneering spirit has enabled us to be at the forefront of many technological advancements in our nation's history—from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold ideas, courage, and a pioneering spirit to join forces to invent the future and have fun along the way.

We’re seeking a highly experienced Senior Linux Server Administrator to join the Chief Information and Digital Office (CIDO) organization’s Space Systems support team. The role is a full‑time, on‑site position in Boulder, Colorado.

• Perform as primary Linux Systems Administrator for a classified government contract.
• Communicate effectively at all levels of the organization with internal and external customers, in written and verbal format.
• Maintain smooth operation of multi‑user computer systems, coordinating with network, software, and system engineers, PC desktop technicians, project managers, end users, and customer and IT management.
• Support multiple networks while ensuring necessary administration tasks are completed and directing 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 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, and 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, 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 input to Computer Security.
• Report project status as required for all recurring and non‑recurring efforts.
• Work under minimal direction and independently determine and develop approach to solutions.

• Master's Degree with 6 years of IT experience; OR a Bachelor's Degree with 8 years of IT experience; OR an Associate's Degree with 10 years of IT experience; OR a High School Diploma/GED with 12 years of IT experience.
• Must have a Security+ CE (or another DOD 8570 IAT level II certification); maintaining the required certification will be a condition of continued employment.
• Must have Linux Operating Systems support experience.
• Linux Workstation and Server management experience is required.
• Candidates must have a current DOD Secret level security clearance (at a minimum) in order to be considered.

• Ideal candidate will have a Bachelor's degree in Information Technology, a Security+ CE, a RHCSA, and 10 years of Linux Server Administration experience, including Red Hat Satellite management and Ansible open‑source software tool experience in a 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.
• Understanding of basic networking, including subnets, routing, and VLANs.
• Cisco experience and/or certifications.
• Windows server management experience.
• Windows Active Directory, VMWare, and/or knowledge of NFS storage systems.
• VMWare experience with current version.
• Knowledge of environmental monitoring tools (HBSS/PRTG/Splunk).
• Scripting (Power Shell) experience.
• Expe…