On-Site Windows Systems Administrator - Polygraph Cleared
FanTom Corp
FanTom Corp in McLean, Virginia is seeking a Windows Systems Administrator to support enterprise IT infrastructure, server operations, and cloud-based environments. This role involves managing Windows and Linux systems while ensuring reliability and security across mission-focused operations. The ideal candidate will possess strong troubleshooting skills and a clear understanding of compliance with operational standards. Effective communication with both technical and non-technical teams is essential. #J-18808-Ljbffr
$185k - $265k
...Senior System Administrator (Windows) Location: McLean, VA (transitioning to Chantilly... ...: Active TS/SCI with CI Polygraph Salary Range: $185,000... ...Travel up to 20% for on-site support, installations, and... ...issues Communication: Clear and effective communicator...WebsiteFull timeTemporary workImmediate start- ...expertise, and long-term career growth. We are seeking a Windows Systems Administrator to support enterprise IT infrastructure, server... ...hardware platforms Required Qualifications Must be fully cleared with a recent polygraph Must be willing and able to work fully onsite at the...Suggested
- ...Job Category: Systems Engrg: Professional Requisition Number: WINDO016440 Posted : December 29, 2025 Full-Time On-site Locations Showing 1 location McLean, VA 22043, USA Responsibilities... ...Sustain and improve the organization’s Windows infrastructure as part of a...WebsiteFull time
- ...action as a Database Administrator at GDIT. Your work will... ...activities for production systems. Hands‑on expertise... ...Level: TS/SCI with Polygraph Desired Skills:... ...partners. Ability to clearly communicate and present... ..., VA - On Customer Site US Citizenship Required...WebsiteWork experience placement
$109.99k - $189.15k
...requires active Top Secret with Polygraph clearance. You must be a U.S.... ...onsite work at client site. We are seeking a Full Stack... ...support operational and analytical systems. Responsibilities... ...engineers, analysts, and system administrators to ensure system interoperability...WebsiteContract workWork at officeShift work$115k - $130k
...engineers, DevOps engineers, site reliability engineers,... ..., networking events, cleared job fairs, and social... .../SCI with Full Scope Polygraph) and handle clearance... ...Applicant Tracking System (ATS). Contribute to team... ...Resources, Business Administration, or a related field (...WebsiteTemporary workWork experience placement2 days per week3 days per week$138.06k - $186.79k
...Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI +... .../User Experience (UI/UX) expertise in the form of wireframes, site maps, diagrams/schematics, process maps, feature lists, mock-ups...WebsiteFull timeTemporary workWork experience placementImmediate startRemote workWorldwideFlexible hours$158.86k - $214.92k
...Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI +... ...experience. Experience: 10+ years Location: Chantilly, VA (On Customer Site) US Citizenship Required GDIT IS YOUR PLACE: 401K with company...WebsiteFull timeTemporary workWork experience placementImmediate startRemote workWorldwideFlexible hours$157.25k - $212.75k
...Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI +... ...Level: TS/SCI with Polygraph Location: McLean VA, on Customer Site US Citizenship Required GDIT IS YOUR PLACE: 401K with company...WebsiteFull timeTemporary workWork experience placementImmediate startRemote workWorldwideFlexible hours- ...TS/SCI Cleared Federal Auditor - McLean, VA Tracking Code 136-257 Job Description TS/SCI... ...Clearance: Active TS/SCI required Location: On-site – McLean, VA • 4-year Bachelor’s degree... ..., Information Technology/Information Systems, or related field • 1+ years of financial...WebsiteFull time
- ...MANTECH seeks a skilled and motivated Windows Systems Administrator to join our team of top Information Technology and Analytic professionals... ...Clearance Requirements ~ An active/current TS/SCI with Polygraph is required. Physical Requirements The person in...Full timeWork at office
$90k - $115k
...Overview LMI is currently seeking a Records Scanning Specialist with a TS/SCI and polygraph clearance and experience supporting Intelligence Community customers. This position requires on site work 5 days a week in McLean. LMI is a new breed of digital solutions provider...WebsiteWork at office- ...Present your solutions in a clear and user-friendly manner that... ...quality assurance, version control systems, and security. Basic... ...months This position has an on-site requirement of 5 days a week... ...Active TS/SCI clearance with polygraph ~ Proficiency in one or more...WebsiteWork experience placementInternshipLocal area
$80k - $133k
...productivity, transparent outputs, and secure integration with enterprise systems. Responsibilities * Design, build, test, and deploy full stack... ..., forms, and reporting views that present analytical outputs clearly to technical and non-technical stakeholders. * Integrate AI-...WebsiteTemporary workFlexible hours- ...active TS/SCI with a Full Scope Polygraph. In this role, you will... ...complex mission workflows into clear, accessible, and mission-effective... ...Produce and maintain design-system components, interaction... ...principles. This position has an on-site requirement of 5 days a week...WebsiteInternshipLocal areaImmediate start
$185k - $265k
...PGTEK is seeking a Senior System Administrator in McLean, VA to support advanced infrastructure technologies. The role requires hands-on expertise in Windows systems, strong communication skills, and the ability to resolve complex technical issues. Candidates must hold...- ...Interface/User Experience (UI/UX) expertise in the form of wireframes, site maps, diagrams/schematics, process maps, feature lists, mock-... ...related experience Security Clearance Level: TS/SCI with Polygraph Location: McLean VA, on Customer Site US Citizenship...WebsiteWork experience placement
$70k - $85k
...tasks accurately with clear instructions to assist... ...This is a full-time, on-site position (5 days/week)... ...to ensure system reliability and determine... ...presentations. IT Administration & Support Maintain... ...with troubleshooting Windows and ChromeOS; basic understanding...WebsiteFull timeInternshipWork at officeLocal areaImmediate start- ...you want to develop software systems that contribute to solving our... ...TS//SCI with a Full Scope Polygraph. The selected candidate will... ...Present technical solutions clearly to both technical and non-technical... ...~This position has an on-site requirement of 5 days a week...WebsiteInternshipLocal areaImmediate start
- ...Location: McLean, VA (On-site) Job Type: Full-Time Clearance Requirement: Active TS/SCI with CI Polygraph (Required) Position Overview Praescient Analytics is seeking a talented... ...: 10+ years in AI/ML tool deployment, systems integration, or process engineering—including...WebsiteFull time
$124.74k - $168.77k
...Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able... ...Management, Information Systems, Security Certifications:... ...to include developers, system administrators, project managers, and senior... ...: McLean, VA - On Customer Site GDIT IS YOUR PLACE: 401K with...WebsiteFull timeTemporary workImmediate startRemote workWorldwideFlexible hours- ...are met. Oversee the maintenance of systems and networks, while providing... ...practices for network security and system administration. Conduct regular project status... ...clearance with a Full Scope polygraph. This position has an on-site requirement and is not eligible for...WebsiteFlexible hours
$86.8k - $198k
...-End Developer As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and... ...team Active TS/SCI clearance; willingness to take a polygraph exam Bachelor's degree Nice to Have Experience with Agile methodology...WebsiteFull timePart timeLocal area- ...Eleven Peppers Studios LLC is seeking a cleared UX/UI Developer & Designer for an exciting web design and development contract in McLean... ...using WordPress and Joomla, developing wireframes, and improving site functionality. Eleven Peppers is a woman-owned small business...WebsiteContract work
$150k - $200k
...needs. This position is based on customer site in Virginia. LMI is a new breed... ...~ Bachelor's degree in computer science, systems engineering, or a related technical field... ...Active Top Secret/SCI clearance with CI polygraph within past 5 years. Preferred ~...WebsiteContract work$122k - $184k
...Collaborate with senior leadership to ensure clear communication, risk reduction, and... ...management, kernel patching, maintenance, and systems integration. Automation development... ...benefit programs is available on our Careers site. This position has an annualized market‑based...WebsiteLocal area- ...Advisor for Information Systems and Network security initiatives... ...sensitive positions presents a clear threat to the mission of the... ...random counter-intelligence polygraph and submit to additional... ...to DoDI 5205.11, Management, Administration and Oversight of DoD SAPs, DoD...Full timePart timeFor contractorsWork experience placementWork at officeTrial periodAfternoon shift
- ...understanding of user-centered design principles and usability standards Security Clearance Level: TS/SCI with Polygraph Location: McLean VA, on Customer Site US Citizenship Required GDIT IS YOUR PLACE: ~401K with company match ~ Comprehensive health and...WebsiteWork experience placement
$113k - $188k
...consideration. Employment for cleared roles is contingent upon... ...the TS/SCI level with required polygraph. We are seeking an experienced... ...UX Strategy & Design Systems ~ Lead UX and UI efforts... ...benefits at: The application window is three days from the date the...WebsiteFull time$89.2k - $147.06k
...week and is only located at customer's site. ? AT&T Global Public Sector is a... ...&T has an opening for a Consolidated Systems Monitoring Administrator to provide 24x7 monitoring of server... ...Clearance: TSSCI with poly (#tssci) (polygraph) Required Qualifications:...WebsiteTemporary workWork at officeLocal area
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