Linux Systems Administrator Level 1 - Clearance Required
$81.6k - $143.87kLockheed Martin
Reference: 730891BRPosted: 2026-07-30Location: Hanover, MarylandSalary: $81,600 - $143,865Clearance: TS/SCI w/Poly SPCompany: Lockheed MartinDescription:What We’re Doing:Lockheed Martin, Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay.Cyber | Lockheed MartinWho we are:Our team is solving the tough challenges and pushing the boundaries of technology to help our customer achieve its mission.#RMSC6ISRWhy Join Us:Your Health, Your Wealth, Your Life Our flexible schedules, competitive pay and comprehensive benefits enable you to live a healthy, fulfilling life at and outside of work.Learn more about Lockheed Martin’s competitive and comprehensive benefits package.We support our employees, so they can support our mission.The Work:As a Systems Administrator you will:Provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance.• Provide support for implementation, troubleshooting and maintenance of IT systems• Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems• Manage the daily activities of configuration and operation of IT systems• Provide assistance to users in accessing and using IT systems• Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems• Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc.• Provide support for the escalation and communication of status to agency management and internal customers• Optimize system operations and resource utilization, and perform system capacity analysis and planningBasic Qualifications:Must have a current TS/SCI with PolyA Bachelor’s degree in a Technical discipline from an accredited college or university plus five (5) years of systems administration experience.A High School Diploma or GED and five (5) additional years of SA experience may be substituted for a Bachelor’s degree.Required Skills:• System Administration experience with CentOS 7, Rocky 9, and RHEL 9 o Upgrading servers, workstations, laptops• Experience with the Customer Secure the Enterprise (STE) tasks• Experience with the Customer data transfer process• Hardware installation experience (servers/workstations)• LinuxDesired Skills:• Task Automationo Ansible experienceo PXE boot• Building VMs using Proxmox• Identity Manager (IDM) experience o Integration of IDM with a CentOS LDAP server• Red Hat Certified System Administrator• Experience trouble shooting and configuring Transport Layer Security (TLS)• Windows 10/11 administration• Linux networking experience#RMSRM2026Clearance Level: TS/SCI w/Poly SPOther Important Information You Should KnowExpression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.Schedule for this Position: 9x80 every other Friday offPay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $81,600 - $143,865. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays. (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.This position is incentive plan eligible.Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.Experience Level: Experienced ProfessionalBusiness Unit: RMSRelocation Available: NoCareer Area: Cyber Security EngineeringType: Full-TimeShift: First
$119.5k - $275k
Federal HPC Linux System Administrator, (Clearance required TS/SCI with Poly) On-Site, MarylandThis role has been designed as ‘’Onsite’ with an expectation... ...data, perform analysis, and escalate problems to higher-level product support groups and appropriate management when...SuggestedFull timeWork experience placementWork at office$98.9k - $148.3k
...assistance availableCLEARANCE REQUIRED FOR START: YesCLEARANCE... ...to work on revolutionary systems that impact people's lives... ...Computer Systems Analyst (Linux Systems Administrator level 3 or 4) to support information... ...a current Top Secret/SCI clearance with a recent and current...SuggestedFull timeRemote workRelocationFlexible hoursShift workWeekend work$101k - $129k
...Systems Administrator, Bulk Data Transport Operations Make an... ...for someone who enjoys Linux, operational support,... ...Qualifications ~ Clearance: Top Secret Clearance... ...’s degree is not required based on the information... ...Required Certification: IAT Level 1 ~ On-call support...Level 1Full timeFor contractorsImmediate startWorldwideVisa sponsorship$120k - $240k
...All positions require an active clearance. WE ARE HIRING OWNERS Set of X is... ...consolidate a diverse set of systems into a new cohesive... ...Work with current owners and administrators to understand existing systems... ...RedHat (RHEL), CentOs Linux, and/or UNIX experience....SuggestedFull timeWork at officeFlexible hours$25k
...â JUNIT/Mockito/AWS/Linux - 8+ yrs of Experience - TS/SCI w/Poly Clearance Halogen Engineering... ...Engineer who can analyze system requirements and concept of... ...tailored to system functions, level, maturity, and performance... ...or all of the Level 1 tasks as constrained by...Level 1Full timeContract workTemporary workRemote workShift work$140k - $173k
...oriented architecture, and Linux OS. Software defined... ...to federal contract requirements, United States... ...active TS/SCI security clearance and polygraph are required... ...into new or modified systems or operating environments... ...Serve as team lead at the level appropriate to the...Level 1Full timeContract workTemporary workImmediate start- ...Focus.New Opportunity for a LINUX System Administrator - TS/SCI Poly.Job... ...to-day operations (Tier 1 / 2 problem identification... ...approved certifications is required to meet the category/level IAT-2 (DoD 8570)... ...possess an ACTIVE TS/SCI CLEARANCE with POLYGRAPHDESIRED SKILLS...
$92.3k - $166.85k
...exciting opportunity for a Senior Linux Systems Administrator in our Intelligence Sector’... ...environments. This role requires deep expertise in Linux... ...professional experienceIAT Level II certification (e.g., Security+... ...and associated policiesClearance Required: Must have an...Full timeImmediate startFlexible hours$116.35k - $210.33k
Linux Systems Administrators / Engineers are needed across several Leidos prime... ...environments. Multiple experience levels are available.Required SkillsLinux systems... ...environmentsSecurity Clearance Requirement: Active TS/SCI... ...years of experienceLevel 1: Bachelor's degree and 5...Full timeImmediate startRelocation packageFlexible hours- OverviewSenior Linux Systems AdministratorLOCATION: Columbia, MD (Onsite... ...Top Secret / TS/SCI (Required)TRAVEL: Less than 10%SALARY... ...experienced Senior Linux Systems Administrator to build, secure, and... ...SKILLSActive TS/SCI security clearance (required)Bachelor's degree...Monday to Friday
$77.6k - $176k
Linux System Administrator, SeniorThe Opportunity:Install systems on dedicated... ...configuration, and DNSTS/SCI clearance with a polygraphHS diploma... ...to obtain DoD 8570.1 IAT Level II Compliant Certification... ...need to meet eligibility requirements for access to classified information...Full timeContract workPart timeWork at officeLocal areaRemote work- ...Ellicott City, Maryland is seeking a System Administrator Level 2 to manage and optimize... ...will have extensive experience in Linux and Windows environments,... ...and a minimum of ten years’ experience are required. Must possess an active TS SCI clearance. #J-18808-Ljbffr...
- ...information Job Posting Title Windows / Linux System Administrator Date Thursday, April 16, 2026... ...Full-time Description & Requirements Maximus is seeking a Windows /... ...position is on-site and requires a Secret Clearance. Maximus TCS (Technology and...Minimum wageFull timeContract workTemporary workWork experience placement
- ...motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD.... ...IAT I certification (DoD 8140 required within 60 days of starting employment... ...Experience with NetAPP Clearance Requirements: ~ Must have a current...Work at office
$100k
...about shaping secure, IT systems in classified environments... ...at APL! We are seeking a Linux System Administrator to join the RF... ...Hold an Interim Secret level security clearance and can ultimately obtain... ...with disabilities. If you require a reasonable accommodation...Interim role$100k
...about shaping secure, IT systems in classified... ...APL! We are seeking a Linux System Administrator to join the RF Engineering... ...Hold an Interim Secret level security clearance and can ultimately obtain... ...investigation and must meet the requirements for access to classified...Temporary workWork experience placementInterim roleRelocation packageFlexible hours$180k - $265k
...efforts with varying levels of hardware and... ...development requirements. Our projects are... ...Technology (IT) systems. Provides support... ...Configures and manages LINUX operating systems... ...as a Linux Administrator 9 years of experience... ...Puppet 3 or greater Clearance Required TS/SCI...Hourly payContract workFor contractorsWork at officeLocal areaMonday to Friday$73.4k - $129.26k
...they can support our mission.The Work:As a Systems Engineer you will: Apply systems... ...8:•Technical Process Area - Stakeholder Requirements Definition, Requirements Analysis, Architectural... ...Area - Acquisition and Supply.The Level 1 System Engineer shall possess the following...Level 1Full timeTemporary workWork experience placementWork at officeRemote workFlexible hours$104k - $166k
...Peraton is seeking a Linux Automation Administrator in our Linthicum, MD... ...team activities.The system administration team... ...an active Top Secret clearance with SCI eligibility... ...skills.Required Technical Qualifications... ...Familiarity with host-level networking such as instance...Contract workWork at officeMonday to FridayShift work- Opening for Systems Administrator to support the Nation... ...Sector, in providing Linux engineering and... ...and system requirements; design a solution... ...REQUIREMENTSRequired Clearance: TSSCI CI Required... ...OR Masters and 1 years, Bachelors... ...with DoD 8570 IAT Level 2.Desired Qualifications...Level 1
- ...security outcomes. As a Senior Linux System Administrator on this program, you will... ...truly matters. Position requires an active TS/SCI with polygraph level clearance. US citizenship is required.... ...software integration Provide Tier 1 (Help Desk) and Tier 2 (...Contract workTemporary workLocal areaImmediate start
- ...Independent Software, as a Systems Administrator, all levels, you will support... ...across Linux and mixed Linux/Windows... ...and STE/STN security requirements ~ Troubleshoot system... ...’s degree. Level 1 (SA1): Five (5) years... ...certification) is required Clearance Requirement:...Level 1
$99k - $125k
...Software Engineer Level 1 Software | Hanover, MD | Full Time... ...Day Shift, Monday–Friday Clearance Requirement: Active TS/SCI with Polygraph... ...of complex software systems in a mission-focused environment... ...applications for Windows and/or UNIX/Linux environments ~ Strong...Level 1Full timeTemporary workMonday to FridayFlexible hoursDay shift$134k - $165k
Security Clearance: Minimum active Secret Location... ...on education level, years of experience... ...position specific requirements which may impact... ...to crack files and system passwords, detect... ...PenTest+, RCCE Level 1, CFR, CySA+, GCFA... ...Windows, OS X, Linux, Android and iOS....Level 1Full time$130k - $150k
**An active TS/SCI with Polygraph is required for this position **Description:Red Arch Solutions is seeking a skilled and detail-oriented Linux System Administrator to join our IT infrastructure team in Annapolis Junction, Maryland. The ideal candidate will have strong...$145k - $155k
...Technology (IT) systems. Manages IT system... ...etc. Provides Tier 1 (Help Desk) and... ...and manages Linux, Unix, and Windows... ...performance. The Level 1 System Administrator (SA) must possess... ...planning Required Qualifications:... ...appropriate security clearance is required, you...Level 1Full timeContract workTemporary workWork experience placementImmediate start- ...Network Engineer (Level 1) Reflexive Concepts is seeking a skilled Network... ...for a total of Eight (8) years Required: Linux administration on RHEL, CentOS, Rocky, SLES, or Ubuntu... ...incorporated) Active TS/SCI clearance with full-scope polygraph (most recent...Level 1
$78k - $250k
REQUIRED:TO BE CONSIDERED FOR THIS POSITION YOU MUST HAVE AN ACTIVE... ...FULL SCOPE POLYGRAPH SECURITY CLEARANCE (U.S. CITIZENSHIP REQUIRED)... ...network engineering curriculum IAT level 1 baseline certification A... ..., Information Security Systems Engineering, or a related discipline...Level 1Temporary workRemote workFlexible hours$25k
...Engineer - Oracle/Linux/Bash - 10+ yrs... .../SCI with Poly Required Halogen... ...requirements for database administration and design.... ...of the system under development... ...Security Clearance: Current TS/SCI... ...Technical (IAT) Level II is required... ...Deductible) and 1 HSA Plan ($150...Contract workTemporary workRemote workShift work$150k
...WITH POLYGRAPH SECURITY CLEARANCE WITH THE FEDERAL GOVERNMENT. (U.S. CITIZENSHIP REQUIRED).We are seeking a System Administrator who has experience working... ...control large numbers of Linux REL 9 (and other OS) systems... ...position skill level. The salary range is $150...Temporary workRemote workFlexible hours
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