Security Clearance Jobs in Herndon, VA

Our contract supports more than 12 efforts with varying levels of hardware and software development requirements. Our projects are focused on front end equipment configuration/maintenance, back-end re...

Fantom Corporation is a mission-focused organization supporting critical programs across the defense and intelligence community. We partner with our customers to deliver high-impact technical solution...

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our ...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

MANTECH seeks a motivated, career and customer-oriented Account Lead to join our team in Herndon, VA. As the NRO Ground Enterprise Directorate Account Lead, you will serve as the single owner of the...

MANTECH seeks a motivated, career and customer-oriented Account Lead to join our team in Herndon, VA. As the Office of Security and Counterintelligence (OS&CI) Account Lead, you will serve as the si...

MANTECH seeks a motivated, career and customer-oriented Account Lead to join our team in Herndon, VA. As the CJIS Account Lead, you will serve as the single owner of the account, accountable for end...

MANTECH seeks a motivated, career and customer-oriented Account Lead to join our team in Herndon, VA. As the NRO Communications Systems Acquisition and Operations (COMM) Directorate Account Lead, yo...

R-00191392Description Leidos’ NISC IV program seeks a Radio Frequency Engineer/Spectrum Engineer to support the FAA Spectrum Engineering Services Group (AJW-194) within the area of National Defe...

Looking for an opportunity to work at the intersection of data engineering and modern platform technologies? Join NS2 Mission as a Palantir Platform Engineer in Herndon, VA, supporting the development...

Help build the software infrastructure that makes complex data systems more visible, resilient, and responsive. Join NS2 Mission as a Software Development Engineer in Herndon, VA, where you'll design ...

Help build the infrastructure behind high-volume, mission-critical data operations. Join NS2 Mission as an Infrastructure Engineer in Herndon, VA, where you'll design, deploy, and maintain scalable cl...

The application window is expected to close on: 09/24/2026The successful applicant will be performing work on US Government classified environments, and therefore, must be a U.S. Person (i.e., U.S. ci...

The application window is expected to close on: 09/29/2026 Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received . Job posting may be r...