Security Clearance Jobs in Mc Lean, VA

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-B...

On behalf of our Federal Contracting client, ClearanceJobs Talent Solutions Team is seeking a Senior Backend (ETL) Engineer to be a key contributor to both user-facing product launches as well as plat...

R-00189519Description Leidos is seeking a Transportation Engineering Lab Intern in McLean, VA to support lab operations and ongoing research efforts at the FHWA Turner-Fairbank Highway Research Center...

Company Overview: At ValidaTek, we modernize and optimize IT services to solve some of the most critical challenges facing federal civilian and defense agencies. From customers to partners to top-tale...

Synertex LLC is seeking a Business Analyst / Visualization Analyst to support a U.S. Federal Government Agency in McLean, VA, by providing critical support identifying, addressing, and resolving data ...

JOB FUNCTION: Receives customer service calls and work-order requests, via telephone, computer network, or in-person. Enters request data into either a computerized maintenance management system or an...

JOB FUNCTION: Receives customer service calls and work-order requests, via telephone, computer network, or in-person. Enters request data into either a computerized maintenance management system or an...

Quality Assurance Manager Sr. - SecretXcelerate Solutions is seeking a Senior Quality Assurance Manager to support the Defense Logistics Agency. This role ensures quality, compliance, and continuous i...

Background Investigator Xcelerate Solutions is seeking a Full Time Background Investigator, you will support a large national background investigations (BI) program that provides investigative product...

JOB FUNCTION: Install, repair, replace, and maintain locks; open locks without keys by picking, impressing, drilling, and duplicating keys. Work Schedule: 6:00 AM - 2:30 PM Monday-FridayMAJOR DUTIES A...

Amentum is seeking a highly experienced Senior Systems/Infrastructure Engineer with advanced technical expertise supporting complex enterprise environments to join our team and support our McLean, VA ...

Amentum is seeking an Information Systems Manager to join our team and support our McLean, VA customer. We are looking for team members who are passionate about making a difference by working on criti...

About Agile DefenseAt Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spiri...

Strategic Financial PlannerTysons, VATS/SCI with PolyAt Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intel...

Job Category: IT Infrastructure and OperationsRequisition Number: DATAB002262Posting DetailsPosted: August 18, 2026Full-TimeOn-siteSalary Range: $142,792 USD to $238,451.20 USDJob DetailsDescriptionGC...

Amentum is looking for a Mechanic Helper to join our team in McLean, VA! As a Mechanic Helper, you help various skilled tradesmen as assigned.HOURS: Monday- Friday 5:30 AM- 2:00 PMMAJOR DUTIES AND RES...

Must be a US Citizen who currently possesses a Secret Clearance but will accept a candidate with an Interim Secret Clearance. This is hybrid position. Job Responsibilities: The Contractor shall coor...

Capgemini Government Solutions (CGS) is dedicated to supporting federal agencies through innovative technology solutions that drive mission success. We are seeking a highly motivated, mission-focused ...

The Data & Software Engineer works with a small team to build complex data flows for a custom application. Successful candidate will have advanced Python programming skills, familiarity with Java, an ...

The Full Stack Software Developer will work with the lead developer to maintain and enhance the existing software application. The developer will help with design and then implement all levels of the ...