Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Linux Systems Administrator 3/4 - Polygraph

$98.9k - $148.3k

Northrop Grumman

RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: PolygraphTRAVEL: 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.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.The Northrop Grumman Classified Solutions CIDO team is seeking a Principal / Sr Principal Computer Systems Analyst (Linux Systems Administrator level 3 or 4) to support information system lifecycle activities.The selected candidate will be required to work on-site, full-time at either our Morrisville, NC location (Raleigh Durham area), or our Linthicum, MD (Baltimore area) campus location.The responsibilities of this role include, but are not limited to, the following:Perform as a Sr Principal / Principal Computer Systems Analyst - Linux Admin in support of classified government contracts.Exhibits good communication skills, an energetic approach, and patience with customers.Establishes and maintains high levels of customer satisfaction according to defined objectives while adhering to established policies.Report task statuses as required for all recurring and non-recurring efforts in written and oral format.Able to support multiple networks, ensuring necessary Linux administration tasks are completed; coordinating with others as necessary, working under minimal direction.Maintain operations of multi-user computer systems working with system engineers, PC desktop technicians, networking engineers, project managers, end users, and IT/Cyber management.Assist with review of internal customer requirements, making recommendations for hardware, software, system component purchases.Maintain and provide reliability of systems through installation, upgrading/patching, monitoring, problem resolution, and configuration management.Provide and maintain backup and recovery services; manage file systems and disk space; manage virus protection on a routine basis.Test new releases of products to ensure compatibility and minimize user impact.Develop and maintain technical documentation of system processes and procedures.Adhere to strict Information Systems security guidelines in all cases, supporting Computer Security with inputs to documentation, as required.Maintain security audit and logging information on all classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).Work across disciplines to isolate issues between software, firmware, and hardware, between software and operating systems, between networks and applications, and between one-time events and recurrent systematic problems.Support environments by means of ticketing requirements systems (ServiceNow, JIRA, etc.)Raises issues that require senior level attention or involvement.Lifts and moves equipment up to 50 pounds.Work after hours, and weekends, as needed.Note: Due to the classified nature of the work being performed, this position does not offer any virtual or telecommute working options. Applicants are encouraged to apply, only if they are willing to work on-site.This position can be filled at either level 3 (Principal), or level 4 (Sr Principal), depending on the the candidate's skill level, education, certifications, and experience based on the below criteria. Basic Qualifications (for level 3):Master's Degree with 3 years of IT experience; OR a Bachelor's Degree with 5 years of IT experience; OR an Associate's Degree with 7 years of IT experience; OR a High School Diploma/GED with 9 years of IT experience is requiredMust have a Security+ CE certification or an equivalent IAT level II cert (example: CND, CCNA-Security) to be consideredExperience with Linux Server Administration in a classified environment is requiredExperience installing, configuring, and maintaining resources in an AWS cloud environment neededMust have experience implementing STIGs (Security Technical Implementation Guides) on Linux systemsCandidates must have a current Top Secret/SCI clearance with a recent and current Polygraph [adjudicated within the last 5 years] in order to be consideredCandidates must have the ability to obtain, and maintain, access to Special Programs as a condition of continued employment Basic Qualifications (for level 4):Master's Degree with 5 years of IT experience; OR a Bachelor's Degree with 7 years of IT experience; OR an Associate's Degree with 9 years of IT experience; OR a High School Diploma/GED with 11 years of IT experience is requiredMust have a Security+ CE certification or an equivalent IAT level II cert (example: CND, CCNA-Security) to be consideredExperience with Linux Server Administration in a classified environment is requiredExperience installing, configuring, and maintaining resources in an AWS cloud environment neededMust have experience implementing STIGs (Security Technical Implementation Guides) on Linux systemsCandidates must have a current Top Secret/SCI clearance with a recent and current Polygraph [adjudicated within the last 5 years] in order to be consideredCandidates must have the ability to obtain, and maintain, access to Special Programs as a condition of continued employment Preferred Qualifications:The ideal candidate will have a Bachelor's degree in Information Technology, a Security+ CE, a Linux+ or RHCSA, and 9 years of Linux Server Administration experience in a classified environmentExperience deploying Infrastructure as Code (Terraform, Helm, Ansible)Experience operating under and managing systems within NISPOM, ICD 503, or JSIG information system environmentsCurrent Virtualization experience and containerization (Docker, Kubernetes, etc.)Knowledge of networking, including subnets, routing, VLANs and VTCsKnowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk)Scripting experienceOperating System Cross-platform awareness (i.e. two or more: Windows, Linux, Solaris, OSX, UNIX, etc.)Experience with the creation and deployment of system images in an enterprise environmentExperience with Assessment & Authorization processExperience with Python or C++We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment. Our diverse portfolio of programs means there are endless paths to cultivate your career. We also offer exceptional benefits/healthcare, a 9/80 work schedule, and a great 401k matching program. Come join us!Primary Level Salary Range: $98,900.00 - $148,300.00Secondary Level Salary Range: $123,400.00 - $185,000.00The 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 U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.SummaryLocation: United States-North Carolina-Morrisville; United States-Maryland-LinthicumType: Full time

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Linux Systems Administrator 3/4 - Polygraph in Linthicum, MD vacancy
  • $123.4k - $185k

     ...work on revolutionary systems that impact people'...  ...:PhD with 4 years of relevant...  ...to include a recent Polygraph [adjudicated within...  ...of Windows server administration experience to include VMWare, Linux, RedHat Administration...  ...Chapter 8, DCID 6/3-ICD 503, RMF, STIG... 
    Suggested
    Full time
    Remote work
    Relocation
    Flexible hours
    Shift work
    Weekend work

    Northrop Grumman

    Linthicum, MD
    2 days ago
  • $108.8k - $163.2k

     ...incredible opportunities to work on revolutionary systems that impact people's lives around the...  ...Embedded FlightSoftware Engineer - Level 3 or 4 to join our team in Linthicum, MD.The...  ...development team, primarily using C++, Linux and/or Python. This role will support Payload... 
    Suggested
    Full time
    Remote work
    Relocation package
    Shift work

    Northrop Grumman

    Linthicum, MD
    3 days ago
  • $108.8k - $163.2k

     ...incredible opportunities to work on revolutionary systems that impact people's lives around the...  ...System Software Developer - Level 3 or 4 to join our team in Linthicum, MD.The Operating...  ...(SOC) hardwareExperience with Bash and Linux scriptingExperience integrating developed... 
    Suggested
    Full time
    Remote work
    Relocation package
    Shift work

    Northrop Grumman

    Linthicum, MD
    9 hours ago
  • $130k - $270k

     ...clearance with a favorable Polygraph, therefore all...  ...university is required Four (4) years of SWE...  ...Experience using the Linux command line interface...  ...Kubernetes Experience using system monitoring tools including...  ...Market Hourly Rates ~$3,400 HSA Contribution... 
    Suggested
    Hourly pay
    Full time
    Temporary work

    Captivation Software

    Annapolis Junction, MD
    13 hours ago
  •  ...Senior Software Engineer (level 3 or 4) with attribute-based access...  ...complex and diverse software systems (e.g., processing-intensive analytics...  ...: Active TS/SCI Polygraph Full‑stack Java development...  ...Terraform, Azure/AWS IAC. Linux scripting (Bash, C, Python), Docker... 
    Suggested
    Contract work
    Work experience placement
    Flexible hours

    RBR Technologies

    Linthicum Heights, MD
    3 days ago
  • $130k - $270k

     ...Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S....  ...Skills: Experience using the Linux CLI Experience creating, managing, and...  ...from Day 1) ~ Above Market Hourly Rates ~$3,400 HSA Contribution ~6 Weeks Paid Time... 
    Hourly pay
    Full time
    Temporary work

    Captivation Software

    Annapolis Junction, MD
    13 hours ago
  • $208k - $238k

     ...System Administrator 3 Location: Central Maryland Security Clearance Required...  ...Clearance with appropriate Polygraph Job Description...  ...Configures and manages UNIX, Linux and Windows operating systems...  ...university is required. Four (4) years of additional SA experience... 
    Contract work
    Work experience placement
    Immediate start
    Flexible hours

    RealmOne

    Annapolis Junction, MD
    4 days ago
  •  ...hiring an Application Engineer 3 (Linux Server) to work in Linthicum...  ...needs. Required: TS/SCI with a Polygraph Description: Perform Linux server system administration functions. Essential Duties...  ...and a Bachelor's Degree. Four (4) years minimum experience and... 
    Full time
    Local area
    Work from home
    Flexible hours

    Themis Insight

    Linthicum Heights, MD
    5 days ago
  • $130k - $150k

    **An active TS/SCI with Polygraph is required for this position **Description:Red Arch...  ...seeking a skilled and detail-oriented Linux System Administrator to join our IT infrastructure team in...  ...related field (or equivalent experience)3+ years of hands-on Linux system... 

    Red Arch Solutions

    Annapolis Junction, MD
    1 day ago
  • $87.1k - $157.45k

     ...for an Enterprise ICAM system as part of a cross-functional...  ...in Windows and Linux/CentOS environments using...  ...• TS/SCI Clearance with polygraph on day one (no exceptions...  ...IT domains is required. 4 years of software engineering...  ...open for at least 3 days with an anticipated... 
    Full time
    Work experience placement
    Immediate start
    Flexible hours

    Leidos

    Hanover, MD
    1 day ago
  • $131.3k - $237.35k

     ...and access services. This system includes a Java/Spring-...  ...TS/SCI clearance with Polygraph up front (no sponsorship...  ...related technical fieldFour (4) additional years of...  ...of three (3) years of experience in...  ...technologiesExperience working in Linux development environmentsDesired... 
    Full time
    Immediate start
    Flexible hours

    Leidos

    Hanover, MD
    9 hours ago
  • $130k - $270k

     ...security clearance with a favorable Polygraph, therefore all candidates must...  ...: Experience using the Linux CLI and Linux tools...  ...Experience with Git Source Control System Desired Skills: Familiar...  ...Above Market Hourly Rates ~$3,400 HSA Contribution ~6... 
    Hourly pay
    Full time
    Temporary work

    Captivation Software

    Annapolis Junction, MD
    13 hours ago
  • $78k - $250k

     ...MUST HAVE AN ACTIVE TS/SCI W/ FULL SCOPE POLYGRAPH SECURITY CLEARANCE (U.S. CITIZENSHIP...  ...of Information Technology (IT) systems. Manages IT system infrastructure and...  ...reliability and performance. The Level 3 System Administrator (SA) shall possess the following capabilities... 
    Temporary work
    Remote work
    Flexible hours

    Onyx Point

    Hanover, MD
    3 days ago
  • $107.9k - $195.05k

    Database Administrator $10K SIGN ON BONUS!Leidos has a new and...  ...database management system products; perform database...  ...Must have TS/SCI with Polygraph. Preferred...  ...dares.Original Posting:May 4, 2026For U.S. Positions...  ...remain open for at least 3 days with an anticipated... 
    Full time
    Immediate start
    Relocation package
    Flexible hours

    Leidos

    Annapolis Junction, MD
    3 days ago
  • $130k - $270k

     ...clearance with a favorable Polygraph, therefore all...  ...Experience using the Linux CL Experience writing...  ...Shell/Bash/Python Linux administration experience including software...  ...experience using system monitoring tools such as...  ...Market Hourly Rates ~$3,400 HSA Contribution... 
    Hourly pay
    Full time
    Temporary work

    Captivation Software

    Annapolis Junction, MD
    13 hours ago
  • $130k - $270k

     ...for developing and maintaining system management infrastructure...  ...Computing (HPC) systems in a Linux environment.   Requirements...  ...security clearance with a favorable Polygraph, therefore all candidates must...  ...Above Market Hourly Rates ~$3,400 HSA Contribution ~5... 
    Hourly pay
    Full time
    Temporary work

    Captivation Software

    Annapolis Junction, MD
    13 hours ago
  • $130k - $270k

     ...security clearance with a favorable Polygraph, therefore all candidates must...  ...: Experience using the Linux CLI and Linux tools...  ...using Bash Recent Python (3.x) software development experience...  ...Experience with Git Source Control System Desired Skills:... 
    Hourly pay
    Full time
    Temporary work

    Captivation Software

    Annapolis Junction, MD
    13 hours ago
  • $78k - $250k

     ...HAVE AN ACTIVE TS/SCI W/ FULL SCOPE POLYGRAPH SECURITY CLEARANCE (U.S. CITIZENSHIP REQUIRED)Provide administration and support for Windows Server 2019...  ...and manage Windows 10/11 client systems. Administer and troubleshoot various Linux distributions (e.g., RHEL8/9, AmazonLinux... 
    Temporary work
    Remote work
    Flexible hours

    Onyx Point

    Hanover, MD
    4 days ago
  • $130k - $150k

    **An active TS/SCI with Polygraph is required for this position **...  ...skilled and detail-oriented Linux System Administrator to join our IT...  ...or equivalent experience) #3+ years of hands-on Linux system...  ...match vested day one and up to 4% profit sharing contribution... 
    Full time
    Contract work
    Work experience placement
    Local area

    Red Arch Solutions

    Annapolis Junction, MD
    more than 2 months ago
  • $130k - $270k

     ...testing and validating HPC systems in accordance with test...  ...with a favorable Polygraph, therefore all candidates...  ...university is required Four (4) years of additional TE...  ...: Experience using Linux CLI and the Linux suite...  ...Market Hourly Rates ~$3,600 HSA Contribution... 
    Hourly pay
    Temporary work

    Captivation Software

    Annapolis Junction, MD
    14 days ago
  • $87.1k - $157.45k

     ...opportunity for a Systems Engineer in our Intelligence...  ...supporting Systems Administration (SA) and GOTS...  ..., and manage Linux-based systems (RedHat...  ...Master’s degree with 4 years, or PhD with...  ...active TS/SCI with Polygraph​Preferred QualificationsFamiliarity...  ...open for at least 3 days with an... 
    Full time
    Immediate start
    Flexible hours

    Leidos

    Annapolis Junction, MD
    2 days ago
  • $78k - $250k

     ...MUST HAVE AN ACTIVE TS/SCI W/ FULL SCOPE POLYGRAPH SECURITY CLEARANCE (U.S. CITIZENSHIP...  ...(both in-person and via phone) o Systems Administration: Linux Server administration alongside Windows...  ...Horizon Core work hours 6am to 6pm. Tier 1-3 support Linux Admin- Analyze and... 
    Temporary work
    Remote work
    Flexible hours

    Onyx Point

    Hanover, MD
    2 days ago
  • $205k - $215k

     ...Level 3 System Administrator Unisity, LLC is a Service-Disabled Veteran Owned Small Business providing...  ...process. Configures and manages Linux, Unix, and Windows operating systems and...  ...clearance with customer appropriate polygraph). Salary: $205,000 - $215,000 (Annually... 
    Full time
    Contract work
    Temporary work
    Work experience placement
    Immediate start

    Unisity LLC

    Annapolis Junction, MD
    3 days ago
  • $165k - $196k

     ...SECURITY CLEARANCE AT THE TS/SCI POLYGRAPH LEVEL is required Do you...  ...are looking for a Senior Linux Systems Administrator who shares our drive to...  ...university. Substitution: Four (4) years of additional...  ...offer you flexibility in the 3 biggest areas of your life:... 
    Hourly pay
    Contract work
    Work experience placement
    Immediate start
    Remote work
    Flexible hours

    Nyla Technology Solutions

    Annapolis Junction, MD
    19 days ago
  • $153k - $181k

     ...CLEARANCE AT THE TS/SCI POLYGRAPH LEVEL IS REQUIRED...  ...to design modern system architectures and automate complex Linux environments? If...  ...Senior Linux Systems Administrator who shares our...  ...flexibility in the 3 biggest areas of your...  ...- Nyla starts with 4 weeks of Annual Leave... 
    Hourly pay
    Contract work
    Work experience placement
    Immediate start
    Flexible hours

    Nyla Technology Solutions

    Annapolis Junction, MD
    19 days ago
  • $131.3k - $237.35k

     ...must have an active TS/SCI Polygraph* No exceptions,...  ...multidisciplinary team of developers, system integrators, and system administrators to architect, deploy, and...  ...platforms across Linux, Windows, and cloud environments...  ...remain open for at least 3 days with an anticipated... 
    Full time
    Immediate start
    Flexible hours

    Leidos

    Hanover, MD
    1 day ago
  •  ...What You Will Do: As a System Administrator Level 4 at Independent Software, you...  ...environments. You will work across Linux and Windows platforms to...  ...Tier 1, Tier 2, and Tier 3 support for system issues across...  ...TS SCI with appropriate Polygraph to be considered for this role... 

    Independent Software

    Annapolis Junction, MD
    1 day ago
  • $104.24k - $156.36k

     ...automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C....  ...industries. Seeking a Database Administrator 3 that is able to work with a dynamic team...  ...years of experience with Associate’s Degree.4 years of experience in programs of similar... 
    Contract work
    Work at office
    Local area

    M.C. Dean

    Annapolis Junction, MD
    1 day ago
  • $104k - $166k

    ResponsibilitiesOverview:Peraton is seeking a Linux Automation Administrator in our Linthicum, MD office...  ..., and team activities.The system administration team is...  ...or a Master’s degree and 3 year of experience. A...  ...Cybersecurity. However, an additional 4 years of relevant... 
    Contract work
    Work at office
    Monday to Friday
    Shift work

    Peraton Corporation

    Linthicum, MD
    9 hours ago
  • $25k

     ...communication and collection systems. This position requires...  ...integrate with existing Linux code bases, bridge FPGA...  ...an active TS/SCI with Polygraph to be considered for...  ...dares.Original Posting:June 4, 2026For U.S. Positions...  ...open for at least 3 days with an anticipated... 
    Full time
    For contractors
    Immediate start
    Relocation package
    Flexible hours

    Leidos

    Annapolis Junction, MD
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Linux Systems Administrator 3/4 - Polygraph. Be the first to apply!