System Administrator Level 3

Northrop Grumman is a leading global aerospace and defense technology company committed to delivering innovative systems that improve and protect people’s lives worldwide. Known for its pioneering spirit and groundbreaking contributions to technology—from historic achievements like the first transatlantic flight to stealth aircraft and lunar landings—Northrop Grumman continuously pushes the boundaries of what is possible. The company fosters a culture of intellectual curiosity and cognitive diversity where employees are encouraged to bring their full selves to work and collaborate toward inventing the future. Employees at Northrop Grumman are engaged in projects that not only shape history but also secure the nation’s future.

This career opportunity is for the position of Principal System Administrator, Technical Level 3, within Northrop Grumman’s Space Sector. This is a full-time, on-site role based at Schriever Space Force Base, Colorado, emphasizing a national security mission. This position serves as a team lead overseeing the 24/7 operations of a critical IT system ensuring its optimal availability, performance, and reliability essential to space system development and sustainment. The role demands a high level of technical expertise combined with leadership capabilities to manage schedules, coordinate incident management cycles, and maintain seamless communication across teams. The candidate will be responsible for administering, troubleshooting, and enhancing both Windows and Linux virtual environments, ensuring that system enhancements improve overall reliability and stability. Additionally, the role involves supporting DevOps software integrations, maintaining security protocols, and escalating issues when necessary.

Successful candidates will have a strong foundation in IT service management technologies, virtualization, and systems administration with expertise in both Linux and Windows platforms, combined with a current Top Secret clearance with SCI access. The position offers a competitive annual salary range from $94,200 to $141,200, with eligibility for overtime, shift differentials, discretionary bonuses, and long-term incentives for leadership roles. Employees also receive comprehensive benefits including health insurance, life and disability coverage, and paid time off. Relocation assistance may be available. This position requires U.S. citizenship and an active security clearance. Candidates will contribute directly to critical national defense initiatives with opportunities for career growth and skill development in a dynamic, mission-critical environment.