System Administrator (TS-SCI w/Poly)
$48.51 - $84.9 per hourParsons 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
$104k - $166k
ResponsibilitiesThe team is seeking a Linux Systems Administrator / Systems Engineer with experience... ...Service Certification is desired.Active TS/SCI with current polygraph requiredPeraton... ...2026-169142Position Category: Information TechnologyClearance: Top Secret/SCI w/PolySuggestedContract workShift work$104k - $166k
...seeking a Network / Desktop Administrator to support and maintain enterprise... ...response to IAVAs, ensuring systems remain compliant with... ...#PeratonRoyalMove#AJCM#MDFSPQualificationsBasic Qualifications:Active TS/SCI security clearance with a... ...Position Category: Cyber SecurityClearance: Top Secret/SCI w/PolySuggestedContract workTemporary workRemote workShift work$25k
...Engineer - HPC - 10+ yrs of Experience - TS/SCI w/Poly Clearance Halogen Engineering... ...of the HPC software stack and related system issues. This candidate will be developing... ...sustainment support. Basic Linux system administration skills and shell scripting. Execute...SuggestedFull timeContract workRemote workShift work$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/PolySuggestedContract workFor contractorsShift work$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/PolySuggestedContract workShift work$25k
...Job Description Job Description System Engineer – DoDAF/SOA- 14+ yrs of Experience - TS/SCI w/Poly Required Halogen Engineering is seeking a System Engineer who can analyze user's requirements concept of operations documents and high level system architectures...Contract workRemote workShift work$103.8k - $218.1k
Job Title: Software Test Engineer (TS/SCI w/Poly) Job Category: Engineering Time Type:... ...cross-functional team, you will analyze system requirements to develop evaluation and... ...engineers, platform engineers, system administrators, and other test engineers you will validate...Full timeContract workWork experience placementLocal areaImmediate startFlexible hours$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/PolyContract workShift work- ...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 officeShift work
- ...country from threats. Job Description ACTIVE DIRECTORY SYSTEMS ADMINISTRATOR YOUR IMPACT Own your opportunity to support national... ...requirements (e.g. Security+ CE, etc.) CLEARANCE: Active TS/SCI clearance with a favorable polygraph Hands-on experience...
- ...country from threats. Job Description VIRTUALIZATION SYSTEMS ADMINISTRATOR YOUR IMPACT Own your opportunity to support national... ...(e.g., Security+ CE, etc.) CLEARANCE: Active TS/SCI clearance with a favorable polygraph Hands on experience...
$25k
...Linux/Bash - 10+ yrs of Experience - TS/SCI with Poly Required Halogen Engineering Group... ...long-range requirements for database administration and design. Responsible for developing... ...into the overall architecture of the system under development and has to make trades...Contract workTemporary workRemote workShift work$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/PolyContract workImmediate startShift work- ...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 employmentCasual workAfternoon shift
$176k - $282k
ResponsibilitiesThe Data Ingest team is seeking Systems Engineer to outline, develop and... ...and data characteristics for softwareTS/SCI clearance with polygraph clearance requiredAdditional... ...ID: 2026-169169Position Category: Information TechnologyClearance: Top Secret/SCI w/PolyContract workFor contractorsFlexible hoursShift work- ...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 contractContract workWork from homeRelocation packageFlexible hours
$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/PolyContract workTemporary workShift work$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/PolyContract workFor contractorsFlexible hoursShift work$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/PolyContract workShift work- ...~ Wellness resources Position: System Administrator, Level II Location: Glen Burnie, MD Security Requirement: Active TS/SCI clearance with full scope polygraph Certification... .... An Active TS/SCI with full scope poly and Security+ certifications are required...Work experience placement
$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 workShift work$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/PolyContract workTemporary workShift work$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/PolyContract workShift work$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/PolyContract workShift work$103.7k - $129.5k
...invite you to explore a career with BCT LLC. About the job: BCT LLC is seeking a System Administrator I to join our team. The ideal candidate must possess an active TS/SCI with POLY. As an Enterprise Infrastructure Support Systems Administrator, you will provide...Local areaHome office- ...Infotech has an exciting opportunity to join our team as a Systems Engineer (SE) in the Annapolis Junction/Fort Meade, MD area... ...documentation and records management. Job Qualifications: TS/SCI w/ CI or FS POLY desired Ten (10) to Twenty (20) years of experience as a...Full timeContract workImmediate startRemote workWorldwideMonday to FridayFlexible hoursShift workDay shift
- ...Job Description DESKTOP APPLICATION PACKAGING & DEPLOYMENT SYSTEMS ADMINISTRATOR YOUR IMPACT Own your opportunity to support national... ...requirements (e.g. Security+ CE, etc.) CLEARANCE: Active TS/SCI clearance with a favorable polygraph Hands-on experience...
$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/PolyContract workShift work$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 timeWork experience placementWork at office- ...SUCCEED: ● Education: High School Diploma/GED ● Required Experience: 1+ years of related experience ● Security Clearance Level: TS/SCI w/Poly ● Required Skills and Abilities: communication and problem solving ● Location: On Site ● US Citizenship Required ● Shift...Shift work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to System Administrator (TS-SCI w/Poly). Be the first to apply!
- application system administrator Columbia, MD
- system admin Columbia, MD
- server administrator Columbia, MD
- IT infrastructure administrator Columbia, MD
- enterprise administrator Columbia, MD
- IT administrator Columbia, MD
- computer systems administrator Columbia, MD
- systems administrator Columbia, MD
- gis system administrator
- entry-level systems administrator


