Security Clearance Jobs in Mc Lean, VA

Position SummaryOdyssey Systems has an exciting opportunity for a Senior Systems Engineer providing support to the Command, Control, Communications, and Battle Management Division (C3BM). Command, Con...

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...

THIS POSITION REQUIRES FREQUENT TRAVEL IN THE DOMESTIC U.S.By Light is seeking an experienced HPE/ Aruba Network Engineer to perform Lan/WLAN network design, development, installation/configuration, p...

Data ScientistMcLean, 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 intelligence, or d...

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...

Job Category: IT Infrastructure and OperationsRequisition Number: SYSTE002292Apply nowPosting Details Posted: September 8, 2026 Full-Time On-site Locations Showing...

Careers at Customer Service Support Specialists REQUIRED: Active TS/SCI with Full Scope PolygraphLOCATION: Full-time onsite in Tyson's Corner, VAAs a Customer Service Suppor...

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

Amentum is seeking a Task Manager to support our customer onsite in McLean, VA. Supports Senior executive-led organizations at the Director level Receives tasking via multiple vehicles and systems Pr...

R-00192560Description Leidos Intelligence Group is seeking a Data Scientist with a strong understanding of various data complexities and experience managing data backlogs and analyzing the data and re...

Job Number: R0242661Data ScientistThe Opportunity: As a data scientist, you're excited at the prospect of unlocking the secrets held by a data set, and you're fascinated by the possibilities presented...

Job Number: R0246002Nuclear Policy Analyst The Opportunity: As a nuclear analyst, you're passionate about the safe, efficient, and compliant operation of nuclear facilities, programs, and policies . W...

Job Number: R0248721Operations Research AnalystThe Opportunity:As an operations analyst, you're passionate about exploring the root cause of an issue and then analyzing, reporting, and developing reco...

Job Number: R0249645Nuclear Policy Analyst The Opportunity: As a nuclear analyst, you're passionate about the safe, efficient, and compliant operation of nuclear facilities, programs, and policies . W...

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...

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...

SMS is hiring a Sr. Wireless Engineer located in the DC Metro area to help manage the Base Infrastructure Modernization (BIM) Task Orders working with the Air Force to modernize the Base. Job Respons...

Must be a US Citizen who currently possesses a Secret Clearance. This is an onsite position 5 days a week. Looking for local candidates only and ability to travel up to 25%. Position Description: The...

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...