Security Clearance Jobs in Lorton, VA

Date Posted:2026-08-07Country:United States of America Location:US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2 Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Require...

Attention Cyber Warriors: Your Next Mission Awaits!Are you a battle-hardened Linux engineer looking for your next challenge? Ready to continue defending our nation's digital frontlines in the civilian...

Requisition Type: Contingent (Open) Position Status: Full Time Position Title: Activity Security Representative IIILocation: Lorton, VASecurity Clearance Level: Top Secret/SCI, SAP Information eligibl...

Job Number: R0252863Manufacturing & Coatings Scale-Up LeadThe Opportunity:Designs and implements new technologies, systems, and processes to improve plant production and efficiency. Applies advanced s...

Zachary Piper Solutions is seeking a Systems Administrator to support enterprise IT infrastructure, systems maintenance, and technical operations for a mission-critical federal environment in Lorton, ...

As a Financial Program Manager, provide expert analysis, program, and financial management support for SAF/AQ IT modernization efforts. You will provide expert analysis, program, and financial managem...

Come make your mark with Watermark! 🎖 FOUNDED BY USAF VETERANS in 2007, we are proud to be a Service-Disabled Veteran Owned Small Business.🌎 SUBJECT MATTER EXPERTS specializing in secu...

Come make your mark with Watermark! 🎖 FOUNDED BY USAF VETERANS in 2007, we are proud to be a Service-Disabled Veteran Owned Small Business.🌎 SUBJECT MATTER EXPERTS specializing in secu...

Cyber Threat Hunter (TS/SCI Clearance Required) About Trellix Trellix is a global cybersecurity leader helping organizations build cyber resilience for the AI era. Combining AI-native security, ope...

R-00194938Description Senior Network EngineerLorton, VA - On-Site RequiredTS/SCIThe Defense sector at Leidos is seeking an experienced Senior Network Engineer to support a fast-paced Department of Def...

This position is for a Chemical Security and Elimination Subject Matter Expert (SME) focusing on improving the chemical security capabilities of partner nations. The SME’s role integrates technical ac...

As a Senior Acquisition Program Manager, you will provide strategic acquisition program management support to the Government Program Management team. You must have an in-depth understanding of Departm...

Job Number: R0252691Android Tactical Assault Kit EngineerThe Opportunity:As an Android software developer, you can resolve a problem with a complete end-to-end solution in a fast and agile environment...

Suvi, an Akima Company, is looking for a Network Systems Engineer to support a mission-oriented, Law Enforcement organization in National Capital Region. This individual will serve as a part of a team...

R-00195793Description Senior Network EngineerLorton, VA - On-Site RequiredTS/SCIThe Defense sector at Leidos is seeking an experienced Senior Network Engineer to support a fast-paced Department of Def...

As a Space Systems Engineer with MTSI you will be a lead advisor to DoD program managers and technical directors for the evaluation and transition of advanced space systems.Your essential job function...

ResponsibilitiesThis position functions as the Advisory and Assistance Services (A&AS) Finance Analyst for the Defense Threat Reduction Agency (DTRA) Global Threat Reduction Directorate's Cooperative ...

Job Title: Software Safety Developer/AnalystJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage of Travel Required: Up t...

Description At System High Corporation-a Top Washington-Area Workplace (The Washington Post, 2023-2025), a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Indexes 3-Star ...

Description ZenPoint Solutions LLC (“ZenPoint Solutions”) is a rapidly expanding Information Technology (IT) services company in the federal sector. We foster a thriving, ambitious work environment th...