Northrop Grumman Corporation
Principal Linux Systems Administrator
Northrop Grumman Corporation, Baltimore, Maryland, United States, 21276
Job Overview
Northrop Grumman Mission Systems seeks a well-qualified Linux Systems Administrator for its Classified Solutions team in Linthicum, MD. This position requires full‑time onsite work on a large, classified government contract, with a Secret clearance and the ability to obtain Special Program Access (SAP) and a Top Secret clearance for preferred candidates.
Responsibilities
Serve as the primary Linux Systems Administrator for a large, classified government contract.
Communicate effectively at all organizational levels and with internal and external customers in written and verbal formats.
Maintain smooth operation of multi‑user computer systems, coordinating with network, software, and system engineers, PC desktop technicians, project managers, end users, and IT management.
Support multiple networks and ensure necessary administration tasks are completed while directing others as required.
Analyze customer requirements and determine equipment and software requirements for automated solutions.
Recommend and implement system enhancements that improve performance and reliability, including installing, upgrading/patching, monitoring, problem resolution, and configuration management.
Provide backup and recovery services, manage file systems and disk space, and maintain routine virus protection.
Create and maintain user and computer accounts and modify file permissions and security access lists.
Test new releases of products to ensure compatibility and minimize user impact.
Develop and document technical processes and procedures as needed.
Make hardware, software, and system component purchase recommendations.
Interact, troubleshoot, and evaluate vendor products, services, and suggestions.
Adhere to strict Information Systems security guidelines.
Maintain security audit and logging information on all classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).
Prepare security documentation for input to Computer Security.
Report project status as required for all recurring and non‑recurring efforts.
Work under minimal direction and independently determine and develop solutions.
Basic Qualifications
Associate's degree and 7 years of relevant experience, or a Bachelor's degree and 5 years of relevant experience, or a Master's degree and 3 years of relevant experience; a High School diploma and 9 years of relevant experience may be considered.
Active DoD Secret level security clearance (within the last 6 years) or enrollment in the DoD Continuous Evaluation Program (CEP).
Ability to obtain Special Program Access (SAP) clearance before a start date.
Experience operating under and managing systems within current applicable information systems compliance standards.
Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments.
Technical Abilities
Linux Operating Systems support experience.
Experience installing and managing Linux operating systems in a server environment.
Experience managing Linux devices throughout a WAN.
Experience implementing STIGs on Linux systems.
Experience installing, configuring, and maintaining computer hardware in a networked environment.
Managing Linux connections within a Windows AD environment.
Non‑Technical Abilities and Certifications
Current Security+ CE, CASP, CISSP, or similar DoD 8570 security certification, or the ability to obtain it within six months of hire date.
Experience leading a Linux team of IT professionals.
Experience mentoring junior IT professionals.
Experience providing surge support to other programs as needed.
Effective communication with non‑technical customers.
Preferred Qualifications
Current DoD Top Secret security clearance.
Experience with automation (Ansible, scripting).
Experience managing containerized environments (Kubernetes, Docker, Podman).
Experience working in mixed Windows/Linux environments.
Experience working with direct‑connected hardware (lab equipment).
Current Security+ CE certification.
Bachelor's or Master's degree in IS related field.
Understanding of basic networking, including subnets, routing, and VLANs; Cisco experience and/or certification.
Windows server management experience.
Experience with Windows AD, LDAP, VMWare, and SAN storage systems.
Red Hat certification for current version.
VMWare experience with current version.
Knowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk).
Rudimentary scripting experience.
Experience with creation and deployment of system images in an enterprise environment.
Experience with Certification & Accreditation process.
DoD 8570 certification in a primary OS (Windows, Linux, Cisco).
Benefits We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a friendly team environment. Our Employee Resource Groups (ERGs) provide opportunities to lead, volunteer, and be recognized. We also provide exceptional benefits including health insurance coverage, life and disability insurance, a 9/80 work schedule, a 401(k) matching program, and paid holidays and PTO. The salary range for this role is $95,800.00 – $143,600.00 with potential for overtime, shift differential, and discretionary bonuses.
Northrop Grumman is an Equal Opportunity Employer. For our complete EEO and pay transparency statement, please visit
EEO Statement . U.S. citizenship is required for all positions with a government clearance and certain restricted positions.
#J-18808-Ljbffr
Responsibilities
Serve as the primary Linux Systems Administrator for a large, classified government contract.
Communicate effectively at all organizational levels and with internal and external customers in written and verbal formats.
Maintain smooth operation of multi‑user computer systems, coordinating with network, software, and system engineers, PC desktop technicians, project managers, end users, and IT management.
Support multiple networks and ensure necessary administration tasks are completed while directing others as required.
Analyze customer requirements and determine equipment and software requirements for automated solutions.
Recommend and implement system enhancements that improve performance and reliability, including installing, upgrading/patching, monitoring, problem resolution, and configuration management.
Provide backup and recovery services, manage file systems and disk space, and maintain routine virus protection.
Create and maintain user and computer accounts and modify file permissions and security access lists.
Test new releases of products to ensure compatibility and minimize user impact.
Develop and document technical processes and procedures as needed.
Make hardware, software, and system component purchase recommendations.
Interact, troubleshoot, and evaluate vendor products, services, and suggestions.
Adhere to strict Information Systems security guidelines.
Maintain security audit and logging information on all classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).
Prepare security documentation for input to Computer Security.
Report project status as required for all recurring and non‑recurring efforts.
Work under minimal direction and independently determine and develop solutions.
Basic Qualifications
Associate's degree and 7 years of relevant experience, or a Bachelor's degree and 5 years of relevant experience, or a Master's degree and 3 years of relevant experience; a High School diploma and 9 years of relevant experience may be considered.
Active DoD Secret level security clearance (within the last 6 years) or enrollment in the DoD Continuous Evaluation Program (CEP).
Ability to obtain Special Program Access (SAP) clearance before a start date.
Experience operating under and managing systems within current applicable information systems compliance standards.
Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments.
Technical Abilities
Linux Operating Systems support experience.
Experience installing and managing Linux operating systems in a server environment.
Experience managing Linux devices throughout a WAN.
Experience implementing STIGs on Linux systems.
Experience installing, configuring, and maintaining computer hardware in a networked environment.
Managing Linux connections within a Windows AD environment.
Non‑Technical Abilities and Certifications
Current Security+ CE, CASP, CISSP, or similar DoD 8570 security certification, or the ability to obtain it within six months of hire date.
Experience leading a Linux team of IT professionals.
Experience mentoring junior IT professionals.
Experience providing surge support to other programs as needed.
Effective communication with non‑technical customers.
Preferred Qualifications
Current DoD Top Secret security clearance.
Experience with automation (Ansible, scripting).
Experience managing containerized environments (Kubernetes, Docker, Podman).
Experience working in mixed Windows/Linux environments.
Experience working with direct‑connected hardware (lab equipment).
Current Security+ CE certification.
Bachelor's or Master's degree in IS related field.
Understanding of basic networking, including subnets, routing, and VLANs; Cisco experience and/or certification.
Windows server management experience.
Experience with Windows AD, LDAP, VMWare, and SAN storage systems.
Red Hat certification for current version.
VMWare experience with current version.
Knowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk).
Rudimentary scripting experience.
Experience with creation and deployment of system images in an enterprise environment.
Experience with Certification & Accreditation process.
DoD 8570 certification in a primary OS (Windows, Linux, Cisco).
Benefits We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a friendly team environment. Our Employee Resource Groups (ERGs) provide opportunities to lead, volunteer, and be recognized. We also provide exceptional benefits including health insurance coverage, life and disability insurance, a 9/80 work schedule, a 401(k) matching program, and paid holidays and PTO. The salary range for this role is $95,800.00 – $143,600.00 with potential for overtime, shift differential, and discretionary bonuses.
Northrop Grumman is an Equal Opportunity Employer. For our complete EEO and pay transparency statement, please visit
EEO Statement . U.S. citizenship is required for all positions with a government clearance and certain restricted positions.
#J-18808-Ljbffr