Security Clearance Jobs in Mc Lean, VA

Position SummaryOdyssey is recruiting to fill a Sr. Avionics Integration Engineer - Communications, Navigation, Identifications, Sensors & Ancillary Systems (CNI SAS) supporting the WIB CV-22 Osprey D...

Offensive Security Software Engineer - Attack Engineer TS Clearance Required 90% Remote. On site work required in great DC Metro occasionally, must be open to occasional travel Level 4 & Staff-Level ...

R-00194331Description Leidos is seeking a highly organized and detail-oriented professional to join our Saxton Lab Team as a Lab Administrative Support Specialist!Our team operates the Federal Highway...

R-00194287Description Job Description Leidos has a new and exciting opportunity for a Data Scientist in our Intel Sector Analysis Solutions Business Area (ASBA) in McLean, VA.  Our talented tea...

Mid. Counterterrorism Research Analysis Support for JTTF (Counterterrorism/Insurgency Analyst)Benefits & Compensation:At Prescient Edge, we believe that acting with integrity and serving our emplo...

UI React Engineer - Polygraph Required We’re looking for UI React Engineers to help modernize a mission-critical system used to support complex manual user workflows. In this role, you’ll build intui...

R-00194232Description Leidos has a new and exciting opportunity for a Sr. Help Desk Specialist in our Intelligence Sector's Analysis Solutions Business Area (ASBA).  Our talented team is at t...

R-00194225Description Leidos has a new and exciting opportunity for a Principal Help Desk Specialist in our Intelligence Sector's Analysis Solutions Business Area (ASBA).  Our talented team i...

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...

Altamira Technologies has a long and successful history providing innovative solutions throughout the U.S. National Security community. Headquartered in McLean, Virginia, Altamira serves the defense, ...

ITC Digital Solutions is hiring a highly motivated and experienced mid-senior level ServiceNow Developer to join our team to support our government clients. The successful applicant will lead the desi...

ITC Digital Solutions is seeking highly motivated and experienced mid-senior level ServiceNow Developer to join our team to support our government clients. The successful applicant will lead the desig...

Design, build, and modernize enterprise integration solutions that connect systems, data, and applications across complex environments. As a Lead Integration Engineer II, you will help deliver scalabl...

Proposal ManagerThe Opportunity:Integral Federal is seeking a Proposal Manager to serve as a member of the Business Development Team in Tysons, VA. The ideal candidate will lead high-impact capture pu...

Job Category: AdministrativeRequisition Number: DEFEN001434Apply nowPosting Details Posted: October 8, 2026 Full-Time On-site Locations Showing 1 location VA - D...

R-00194200Description Leidos has a new and exciting opportunity for a Help Desk Specialist in our Intelligence Sector's Analysis Solutions Business Area (ASBA).  Our talented team is at the f...

R-00194192Description Leidos has a new and exciting opportunity for a Jr. Help Desk Specialist in our Intelligence Sector's Analysis Solutions Business Area (ASBA).  Our talented team is at t...

R-00194194Description Leidos has a new and exciting opportunity for a Technical Intelligence Editor in our Intel Sector Analysis Solutions Business Area (ASBA) in McLean, VA.  Our talented t...

R-00186131Description Are you interested in improving and shaping the transportation industry in a group of intelligent and motivated individuals?  Leidos operates the Federal Highway Administra...

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...