Security Clearance Jobs in Mc Lean, VA

Job Category: IT/TechnicalRequisition Number: PCTEC002297Work Type: Full-Time | On-siteTitan Technologies, LLC (Titan) is seeking an experienced, self-directed, PC Technician to support the Special Op...

Join a Company Where Your Work Makes a DifferenceAt ISN, we believe our people are the driving force behind our success. For more than 45 years, we've partnered with over 150 federal agencies to deliv...

The application window is expected to close on: 12/03/2026The successful applicant will be performing work on US Government classified environments, and therefore, must be a U.S. Person (i.e., U.S. ci...

Job Description We are seeking a skilled DevOps Engineer to join our dynamic team. The ideal candidate will have a strong background in system engineering and experience working with cloud technologie...

Company OverviewIridium is an award-winning satellite communications company operating the world's only truly global voice and data network, delivering reliable connectivity anywhere on Earth. For mor...

Task Force Talent Cybersecurity Engineer (TS/SCI + Poly) Tysons Corner, Virginia, United States Apply for this job Task Force Talent is recruiting cybersecurity engineers...

Library Technician – Reference ParaprofessionalMcLean, VA (on-site)Position Summary:The Library Technician – Reference Paraprofessional will provide library operations, research assistance, and refere...

LibrarianPTFS, a privately owned, Maryland-based company providing library software and solutions, digital archiving as well as professional services including digitization, library staffing, and inte...

Job Type: Full- Time Workplace Type: Onsite Clearance: TS/SCI willingness to take a polygraph exam Must be a U.S. Citizen Job Summary Castalia Systems is seeking a Mid-Level Defense Industries A...

Our Deloitte Finance Transformation team practices to help chief financial officers, controllers, and finance teams define and execute their finance and global business services agendas and strategies...

Test Engineer Level 1Benefits and Compensation:At Prescient Edge, we believe that acting with integrity and serving our employees is the key to everyone’s success. To that end, we provide employees wi...

LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grad...

At EY, we're all in to shape your future with confidence.We'll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help t...

At EY, we're all in to shape your future with confidence.We'll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help t...

At EY, we're all in to shape your future with confidence.We'll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help t...

SUMMARYLead strategic captures across the Department of Army — driving opportunity shaping, teaming, and capture/proposal execution for high-value pursuits in AI, cybersecurity, cloud, and digital tra...

Title:Cyber AdvisorBelong. Connect. Grow. with KBR!KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and natio...

Title:CI Team LeadBelong. Connect. Grow. with KBR!KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and nation...

Title:CIO Team LeadBelong. Connect. Grow. with KBR!KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and natio...

Title:CIO Principal AdvisorAt KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with custom...