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

System Administrator (TS-SCI w/Poly)

$48.51 - $84.9 per hour

Parsons Corporation

In a world of possibilities, pursue one with endless opportunities. Imagine Next!At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible.Job Description:Parsons is seeking a versatile System Administrator to tackle new challenges across the full stack as we continue to push security forward. Parsons’ extensive experience in the cleared space, combined with your technical knowledge, will propel your career forward with opportunity for advancement with top performance.In this role you will maintain operating systems, security tools, applications, servers, desktops, software, and hardware. Optimize networks for mission/project requirements. Implement faster and smarter processes for meaningful insights and solutions. Ensure reliable operations and maintenance of network infrastructure. Partner with internal stakeholders to communicate project status, activities, and achievements.Essential Duties & Responsibilities:Assess system architecture and current hardware limitations.Participate in gathering business and product functional and performance requirementsResponsible for the administration of Linux systems, and Windows servers inclusive of applications, processes the system supportsDefine and design system specifications, input/output processes, and working parameters for hardware/software compatibility on both Windows and Linux platformsDesigning, planning, and implementing both new and legacy technology that directly supports the goals of the missionAnalyze system logs and identify potential issuesManage the operational day to day of the networkInstall government provided software patches and updatesInstall, and configure new systems and platformsPerform security management and application performance optimization functionsPerform regular hardware maintenance of administered systemsProvide analyses of alternatives for identified system issues or future plansInstall, and configure new systems and platformsRequired Qualifications:Bachelor’s degree in an IT related field preferred (in lieu of degree, 4 additional years of relevant work experience may be substituted) or a Master's and typically 3+ years of experience5+ years of experience as a System AdministratorExperience with administration of VMware, Linux systems, and Windows servers inclusive of applications, processes the system supports.Active TS/SCI with poly clearanceDesired Qualifications:DoD 8570 IAT II compliant (Security+ certified preferred, etc.)Security Clearance Requirement:An active Top Secret SCI w/Polygraph security clearance is required for this position.​This position is part of our Corporate team.For over 80 years, Parsons Corporation, has shaped the future of the defense, intelligence, and critical infrastructure markets. Our employees work in a close-knit team environment to find new, innovative ways to deliver smart solutions that are used and valued by customers around the world. By combining unique technologies with deep domain expertise across cybersecurity, missile defense, space, connected infrastructure, transportation, smart cities, and more, we're providing tomorrow's solutions today.Salary Range: $48.51 - $84.90We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to .SummaryLocation: US - MD, ColumbiaType: Full time

Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the System Administrator (TS-SCI w/Poly) in Columbia, MD vacancy
  • $146k - $234k

    ResponsibilitiesMid-level Network / Desktop Administrator to support and maintain enterprise...  ...vulnerabilities in response to IAVAs, ensuring systems remain compliant with security...  ...may be substituted for a BS.An active TS/SCI w/Poly is required.5+ years of combined experience... 
    Suggested
    Contract work
    Remote work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    22 hours ago
  • $176k - $282k

    ResponsibilitiesThe Systems Engineer -Splunk Administrator will support a critical mission of consequence within...  ...planning and leading SystemsActive TS/SCI security clearance with current polygraph...  ...166326Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Suggested
    Contract work
    For contractors
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    3 days ago
  • $112k - $179k

    ResponsibilitiesCloud Systems Administrator 2 Annapolis Junction, MD At Peraton, we deliver trusted,...  ...disciplines will be considered Active TS/SCI clearance with current Polygraph is required...  ...2026-165511Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Suggested
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    22 hours ago
  • $25k

     ...Engineer – Linux/Scripting/Splunk - 5+ yrs of Experience - TS/SCI w/Poly Clearance  Halogen Engineering Group is looking for a Test...  ...Requirements Required Skills Independently test and validate HPC systems in accordance with test plans to ensure that system... 
    Suggested
    Contract work
    Temporary work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    Annapolis Junction, MD
    16 days ago
  • $112k - $179k

    Responsibilities Systems Engineer | Location: RemoteActive TS/SCI with polygraph required - this position supports a high-priority mission with immediate...  ...by law. Job SummaryRequisition ID: 2026-165815Position Category: EngineeringClearance: Top Secret/SCI w/Poly
    Suggested
    Contract work
    Immediate start
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    3 days ago
  • $176k - $282k

    Responsibilities Peraton is currently looking for a Systems Engineer to help the project with...  ...for a bachelor’s degree.Active TS/SCI clearance with current polygraph required...  ...ID: 2026-170420Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    1 day ago
  • $135k - $216k

    ResponsibilitiesAbout the Role: Peraton is seeking a Cloud System Administrator to support a mission-critical...  ...the required bachelor’s degree.Active TS/SCI with polygraph is required.Security+...  ...2026-170298Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Temporary work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    4 days ago
  • $190k - $304k

    ResponsibilitiesPeraton is seeking a Systems Engineer to support our Cyber Mission business...  ...Qualifications:Active TS/SCI clearance with current polygraph is required...  ...ID: 2026-168256Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    For contractors
    Flexible hours
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    22 hours ago
  • $176k - $282k

    ResponsibilitiesWe are seeking a Systems Engineer to support the analysis, design, integration...  ...may be substituted for the degree.Active TS/SCI clearance with a current polygraph....  ...ID: 2026-170934Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    2 days ago
  • $190k - $304k

    ResponsibilitiesPeraton is seeking a Senior Systems Engineer to support a large analytic...  ..., type and complexity is required Active TS/SCI security clearance with a current polygraph...  ...ID: 2026-167039Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    1 day ago
  • $146k - $234k

     ...NiagaraFiles project is currently looking for a Systems Engineer SME to help on the project with...  ...Qualifications:Active TS/SCI clearance with current polygraph requiredTen...  ...ID: 2026-170303Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Temporary work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    4 days ago
  • $176k - $282k

     ...flexible hours.The Data Ingest team is seeking Systems Engineer to:Outline, develop and...  ...#MDFSPQualificationsBasic Qualifications: TS/SCI with Polygraph level clearance is required...  ...SummaryRequisition ID: 2026-162775Position Category: EngineeringClearance: Top Secret/SCI w/Poly
    Contract work
    For contractors
    Flexible hours
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    2 days ago
  • $103.8k - $218.1k

    Job Title: Software Test Engineer (TS/SCI w/Poly)Job Category: EngineeringTime Type: Full timeMinimum...  ...-functional team, you will analyze system requirements to develop evaluation and...  ...engineers, platform engineers, system administrators, and other test engineers you will... 
    Contract work
    Work experience placement
    Local area
    Immediate start
    Flexible hours

    CACI International

    Columbia, MD
    2 days ago
  •  ...our country from threats. Job Description Account Systems Administrator  Transform technology into opportunity as a Account Systems...  ..., Word, Excel), Data Entry ● Security Clearance Level: TS/SCI w/Poly ● Preferred Skills: Ticketing System, Active Directory,... 
    Work at office
    Monday to Friday
    Shift work

    General Dynamics Information Technology

    Annapolis Junction, MD
    17 days ago
  • $176k - $282k

     ...Outreach & Engagement team is seeking a Senior Systems Engineer to support the continued...  ...substituted for a bachelor’s degree.Active TS SCI security clearance with a current polygraph...  ...ID: 2026-169682Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    2 days ago
  • $176k - $282k

     ...on-site to handle emergency issues with systems supporting dataflow. Typically team rotation...  ...Qualifications:Active TS/SCI security clearance with a current polygraph...  ...ID: 2026-169693Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    2 days ago
  •  ...Job Title: Systems Administrator (TS/SCI Full Scope Poly) Location: Ft. Meade, MD area (on-site) Clearance Required: Active TS/SCI with Full Scope Polygraph (must have been adjudicated in Maryland) About the Role We are seeking an experienced Level 2 Systems... 
    Full time

    RedBeard Solutions

    Fort George G Meade, MD
    2 days ago
  • $176k - $282k

     ...configure, and maintain Linux-based operating systems, including Red Hat Enterprise Linux (...  ..., maintain, and automate system administration tasks using configuration management...  ...-call rotations is required.An active TS/SCI w/Poly is required.Peraton offers enhanced benefits... 
    Contract work
    Remote work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    3 days ago
  • $146k - $234k

     ...Software Application Support Systems Engineer to join our team. In...  ...QualificationsBasic QualificationsActive TS/SCI clearance with current...  ...command line and Systems Administration supportAbility to maintain a...  ...Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    22 hours ago
  •  ...Job Description VDI WINDOWS DESKTOP ADMINISTRATOR Deliver simple solutions to complex...  ...issues and implement permanent fixes. ● System Maintenance and Optimization: Ensure...  .... ● Security clearance level: TS/SCI w/Poly ● US citizenship required ● Role requirements... 
    Permanent employment
    Casual work
    Afternoon shift

    General Dynamics Information Technology

    Annapolis Junction, MD
    a month ago
  •  ...threats. Job Description WEB SERVER ADMINISTRATOR The Web Server Administrator is...  ...compliance with DISA (Defense Information Systems Agency) standards and guidelines. ●...  ...● Security clearance level: TS/SCI w/Poly ● US citizenship required ● Level II... 

    General Dynamics Information Technology

    Annapolis Junction, MD
    2 days ago
  • $146k - $234k

     ...build, and secure next-generation software systems supporting critical mission operations....  ...substituted for a bachelor’s degree.Active TS/SCI security clearance with a current...  ...ID: 2026-164162Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    2 days ago
  •  ...to protect our country from threats. Job Description SYSTEMS ADMINISTRATOR SME – LINUX Grow your impact. Grow your career. At...  ...-level proficiency with Linux operating systems • Active TS/SCI with polygraph • US citizenship • Demonstrated experience... 
    Long term contract
    Contract work
    Work from home
    Relocation package
    Flexible hours

    General Dynamics Information Technology

    Annapolis Junction, MD
    more than 2 months ago
  • $146k - $234k

    Responsibilities Responsibilities:As an Information Systems Security Engineer (ISSE), you will play a...  ...: Active TS/SCI security clearance with current polygraph...  ...SummaryRequisition ID: 2026-166253Position Category: Cyber SecurityClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    4 days ago
  •  ...protect our country from threats. Job Description Restore System Administrator Transform technology into opportunity as a Restore System...  ...and system issues. Clearance & Certifications: Active TS/SCI with Polygraph. Must be 8570 compliant with a Security+... 
    Work at office
    Shift work

    General Dynamics Information Technology

    Annapolis Junction, MD
    more than 2 months ago
  •  ...Job Description Job Description System Engineer -  STE/STN Security Compliance - 20+ yrs of Experience - TS/SCI w/Poly clearance is required Halogen Engineering...  ...engineers, networking and storage teams, system administrators, and customer stakeholders to deliver... 
    Contract work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    Annapolis Junction, MD
    9 days ago
  • $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 that you will primarily work from an HPE partner/customer office.Who We Are:Hewlett Packard Enterprise is the global... 
    Full time
    Work experience placement
    Work at office

    Hewlett Packard Enterprise

    Annapolis Junction, MD
    2 days ago
  • $176k - $282k

     ...mission objectives. You will serve as both a Systems Engineering lead and Scrum Master,...  ...as well as end-to-end flow analysisActive TS/SCI clearance with polygraph clearance required...  ...ID: 2026-168638Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    1 day ago
  • $72.88k - $98.6k

     ...Currently Possess: Top Secret SCI + Polygraph Clearance Level...  ...), Windows Desktop Operating Systems Certifications: None...  ...PACKAGING & DEPLOYMENT SYSTEMS ADMINISTRATOR YOUR IMPACT Own your opportunity...  ..., etc.) CLEARANCE: Active TS/SCI clearance with a favorable... 
    Full time
    Temporary work
    Part time
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    GDIT

    Annapolis Junction, MD
    a month ago
  • $146k - $234k

    ResponsibilitiesResponsibilitiesAnalyze user and system requirements to inform software design,...  ...Qualifications:Active TS/SCI security clearance with a current polygraph...  ...ID: 2026-169761Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to System Administrator (TS-SCI w/Poly). Be the first to apply!