Computer Operations Analyst 2/3 - Linux

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: 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.  Northrop Grumman’s CIDO Space Operations organization is seeking a qualified Computer Operations Analyst 2/3 - Linux Systems Administrator (RHEL) to provide server and systems administration support to include a high-demand, off-net/enclave production environment running primarily Red Hat Enterprise Linux (RHEL) at our Gilbert, AZ facility. Job responsibilities will include, but are not limited to, the following:

Administer, monitor, and troubleshoot server/client systems supporting offnet/enclave environments that operate behind a firewall. Understand and correctly apply the difference between domain‑joined (high‑trust) systems and off‑domain/standalone systems using local accounts, including appropriate account management, authentication, and security practices for each. Perform routine system administration tasks: account creation and management, permissions, storage, backups, and performance monitoring. Troubleshoot hardware, OS, and application issues; perform root cause analysis and document resolutions clearly and consistently. Support physical server maintenance, including racking/unracking equipment, cabling, and hardware swaps; ability to lift equipment up to 50 lbs. Maintain accurate records in ServiceNow (or equivalent ITSM platform), including incident, change, and asset records; ensure SLAs are met and customer expectations are managed appropriately. Support security compliance and vulnerability management activities, including remediation tracking using tools such as Tenable (vulnerability scanning), Armis (asset/network visibility), and ArcherGRC (governance, risk, and compliance documentation). Provide on‑call/after‑hours support during production‑impacting incidents and scheduled maintenance windows, as needed. Collaborate with engineering, security, and program teams to support IT initiatives across on‑net and offnet environments.   Linux/RHEL- Specific Responsibilities Administer Red Hat Enterprise Linux (RHEL) servers, including user/group management, file systems (LVM), and package management (yum/dnf). Manage patching and content delivery through Red Hat Satellite Server, including content views, activation keys, and lifecycle environments. Configure and maintain SELinux, systemd services, and networking on RHEL hosts. Support Kickstart or