Principal Linux Systems Administrator Linthicum, MD

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.

Northrop Grumman CIO is seeking a well-qualified Linux Administrator to join its dynamic team of technical professionals in Linthicum, MD. The selected candidate will be required to work on-site, full-time, at our Linthicum campus. Roles and responsibilities will include but not be limited to the following:

  • Perform as primary Linux Systems Administrator for a large classified government contract.

  • Communicate effectively at all levels of the organization with internal and external customers, in written and verbal format.

  • Maintain efficient operations of the entire IT infrastructure including severs, desktop, and networking equipment.

  • Support multiple networks and ensure necessary IT administration tasks are completed independently as necessary.

  • Analyze internal and external customer requirements and recommend equipment and software requirements for solutions to problems by means of automated systems.

  • Recommend and implement system enhancements that will improve the 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 as directed by policy.

  • Create and maintain user and computer accounts and modify file permissions as directed by policy.

  • Test new releases of products to ensure compatibility and minimize user and impact.

  • Develop and maintain technical processes and procedures as needed.

  • Maintain security audit and logging information on all classified networked and standalone computers as directed by the Cyber Security team.

  • Report project status as required for all recurring and non-recurring efforts.

Basic Qualifications:

  • Associate's degree with 7 years of experience, or a Bachelor's degree with 5 years of experience, or a Master's degree with 3 years of experience; a High School diploma or equivalent with 9 years of experience may be considered in lieu of a completed degree.

  • Experience operating under and managing systems within current applicable information systems compliance standards.

Technical Abilities:

Experience maintaining Classified Linux Domains in effective operations to include the following:

  • Experience installing and managing Redhat Linux in a server environment.

  • Understanding of installing RedHat patches.

  • Experience installing, configuring, and maintaining computer hardware in a networked environment.

  • Experience implementing STIGs (Security Technical Implementation Guides) on Linux systems.

  • General Linux troubleshooting.

  • End user support.

  • Ability to support tier 2 and 3 helpdesk tickets.

Clearance and Access:

  • Currently active DoD Secret security clearance adjudicated within the last 5 years; maintaining the required security clearance will be a condition of continued employment .

  • A Special Access Programs (SAP/SAR) clearance is required on Day 1; maintaining a SAP/SAR clearance will be a condition of continued employment.

Non-Technical Abilities and Certifications:

  • Currently valid Security+ CE, CASP, CISSP, or similar DoD 8570 security certification; otherwise an ability to obtain certification within 6 months as a condition of continued employment. Certification must be maintained as a condition of continued employment. Additional contract changes may expedite the 6 month window.

  • Experience working in team of IT professionals.

  • Ability to travel as needed.

  • Ability to lift equipment weighing up to 40 pounds.

  • Ability to work after hours and weekends as needed.

Preferred Qualifications:

  • Experience installing, using, and maintaining ASIC monitoring software.

  • Experience giving technical presentation to technical and non-technical attendees.

  • Experience using Anisble.

  • Experience providing surge support to other programs as needed.

  • Redhat System Administration certification(s).

  • Experence in software integration lab (SIL).

  • Solid understanding of Enterprise-level storage concepts to include all commonly-used RAID-levels .

  • Solid understanding of remediating security vulnerabilities.

  • Identity Management (Single Sign-On) experience.

  • Experience with host-based firewall implementations and configuration (Redhat "iptables") .

  • Knowledge of OpenShift, Kubernetes, or Docker.

  • Knowldege of cluster technology or IBM Spectrum LSF.

  • VMware and ESXi (6.x or higher) configuration and management experience.

  • Windows 10 administration experience; Windows Server 2012/2016 experience; Group Policies(GPOs) experience; Active Directory management experience .


Salary Range: $90,600 - $136,000

Employees may be eligible for 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 health and safety of our employees and their families is a top priority . The company encourages employees to remain up-to-date on their COVID-19 vaccinations. U.S. Northrop Grumman employees may be required, in the future, to be vaccinated or have an approved disability/medical or religious accommodation, pursuant to future court decisions and/or government action on the currently stayed federal contractor vaccine mandate under Executive Order 14042 .

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action 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/AA and Pay Transparency statement, please visit . U.S. Citizenship is required for most positions.

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