Sr Principal Linux Systems Administrator - Top Secret

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time Description 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 and inventive 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 new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and secure technological solutions to enable strategic objectives. We’re looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we will support yours by expanding your personal network and developing skills, whether you are new to the field or an industry thought leader. At Northrop Grumman, you will have the resources, support, and team to do some of the best work of your career.     The Northrop Grumman Classified Solutions CIDO team is seeking a Sr. Principal Computer Systems Analyst - Senior Linux Systems Administrator to support information system lifecycle activities. The selected candidate will be required to work on-site, full-time at our Azusa, CA location.    The responsibilities of this role include, but are not limited to, the following:     • Perform as a lead Sr. Principal Computer Systems Analyst - Linux in support of classified government contracts.  • Communicate effectively with all organizational levels, internal/external customers, vendors, and senior leadership, both verbally and in writing.  • Oversee operations and administration of multi-user computer systems and multiple networks, coordinating with IT teams, project managers, and end users.  • Analyze requirements, recommend, and implement hardware/software solutions; interact with vendors to evaluate and troubleshoot products and services.  • Define, implement, and maintain enterprise-wide system enhancements, including installation, upgrades/patches, monitoring, configuration management, and problem resolution.  • Design and develop backup strategies to include backup and disaster recovery frameworks for critical systems.  • Establish and enforce procedures for account management, file permissions, and security access.  • Lead testing, validation, and change management for major product releases across platforms.  • Develop, publish, and continuously improve technical standards and SOPs.  • Ensure compliance with Information Systems security guidelines; prepare and maintain security documentation, audit logs, and Assessment & Authorization (A&A) submissions; serve as senior liaison to the ISSM.  • Report on strategic initiatives and project status to executive stakeholders; act as a key technical advisor impacting enterprise-wide, mission-critical systems.  • Acts as a key technical advisor to senior leadership; impacts multiple programs and mission‑critical systems across the enterprise.  • Provide senior-level technical expertise by mentoring junior and experienced team members, fostering th