RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt 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.Northrop Grumman, Defense Systems, is seeking a Principal / Sr. Principal Software Systems Administrator to work on the Whisper program in Stafford, Virginia. The Whisper program is a large Antenna based RF Transmission and receiving network project. We use command and control software to remotely control multiple systems worldwide.Responsibilities : Perform Linux server Administration and maintenanceSystem development, lifecycle upgrades, server monitoring and patchingAssist with all or part of the following: system application design, code development, testing, code maintenance.Basic Qualifications: This position is open as a dual level opportunity. We will consider candidates at a level 3 or level 4:Based on your overall experience, education, years of experience, fit to the position, and interview evaluation will determine which level you are selected for.Level 3 bachelor’s degree with 5 years of experience OR a master’s and 3 years’ experience OR a High School diploma / equivalent with 9 years’ experience may be considered in lieu of degreeLevel 4: Bachelor’s degree with 8 years of experience OR a master’s and 6 years’ experience OR a High School diploma / equivalent with 12 years’ experience may be considered in lieu of degreeWork on-site at Stafford VirginiaExtensive experience with RHEL Operating systemsFamiliar with Windows Operating Systems/Active DirectoryTS/SCI clearance and ability to obtain a CI polygraphPrior to start obtain a (IAT) level II or higher (i.e. Security +) .Familiar with Compliance/Vulnerability Monitoring with tools such as Nessus, HBSS and ACASPreferred Qualifications:Knowledge of the following: Hycu backup/recovery software or other backup/recovery software; Nutanix virtual environment, or other platforms such as VMWare; Elastic Search Stack (ELK);Web (Brower based) GUI front end development (HTML, JavaScript, CSS, Angular)Experience with hardening Linux OS and applications to required configurations (e.g. DISA STIGs)Configuration Management experience working with software version control tools (Jira’s Bamboo, Stash, GIT, Subversion)Risk Management Framework (RMF)Linux and / or Windows system administration experienceNetwork troubleshooting skillsExperience with scripting languages (Bash, Python) or othersPrimary Level Salary Range: $103,600.00 - $155,400.00Secondary Level Salary Range: $129,300.00 - $193,900.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.