ClearanceJobs
  • Candidates
  • Employers
  • Hiring Companies
  • News & Career Advice
  • Login
  • Register now

National Defense Security Jobs in Colorado

national defense security Colorado

Viewing 1 - 20 of 959

National Defense Security Jobs in Colorado requiring security clearance

Show:
Sort by:

Proposal Manager I

Sierra Nevada Corporation
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Do you have strong analytical and communication skills, like to work in a collaborative environment, and have a background in the US Department of Defense, US Military, or Aerospace & Defense industry...

user avatar

Proposal Manager I

Sierra Nevada Corporation
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Do you have strong analytical and communication skills, like to work in a collaborative environment, and have a background in the US Department of Defense, US Military, or Aerospace & Defense industry...

user avatar

Proposal Manager II

Sierra Nevada Corporation
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Do you have strong analytical and communication skills, like to work in a collaborative environment, and have a background in the US Department of Defense, US Military, or Aerospace & Defense industry...

user avatar

Systems Engineer Level IV

Barnett Engineering & Signaling Laboratories
Colorado Springs, CO(On-Site/Office)
Jan 5
5+ yrs exp
Unspecified

Description: Barnett Engineering & Signaling Laboratories LLC (BESL), is a premier technical, operationally focused, ISO and CMMI certified Service Disabled, Veteran Owned, Small Business (SDVOSB) lo...

user avatar

Senior Technical Lead for Ground Processing Infrastructure

SciTec, Inc.
Boulder, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Description SciTec is a dynamic small business, with the mission to deliver advanced sensor data processing technologies and scientific instrumentation capabilities in support of National Security and...

user avatar

Sr Systems Engineer

Sierra Nevada Corporation
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Are you a bold thinker? At SNC, we dream big-advocating the exploration of space, keeping service members safe, and creating the systems that protect and sustain our way of living. Join our team! As a...

user avatar

Associate Proposal Manager

Sierra Nevada Corporation
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Do you have strong analytical and communication skills, like to work in a collaborative environment, and have a background in the US Department of Defense, US Military, or Aerospace & Defense industry...

user avatar

Service Desk Technician

Parsons
Colorado Springs, CO(On-Site/Office)
Updated Today
TS/SCI
Polygraph

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 ...

user avatar

Sr Director Integrated Program Management

New
Sierra Nevada Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

As Sr Director Integrated Program Management you'll be responsible to share your program management experience, skills, and best practices and to provide business area leadership for program managemen...

user avatar

Systems Engineer (IAT Level II)

Abel Personnel, Inc.
Colorado Springs, CO(On-Site/Office)
Huntsville, AL(On-Site/Office)
Dec 30, 2025
5+ yrs exp
Secret

Systems Engineer (IAT Level II) Location:Colorado Springs, Colorado or Huntsville, Alabama (onsite with flexibility; some travel between locations may be required) Security Clearance:Active Secret cle...

user avatar

Senior Military Operations Analyst

QinetiQ US
Colorado Springs, CO(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Company OverviewWe are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locatio...

user avatar

Director, Business Development

KBR
Colorado Springs, CO(On-Site/Office)
El Segundo, CA(On-Site/Office)
Updated Today
Top Secret
Not Specified

Title:Director, Business Development Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the int...

user avatar

Cyber Defense Operations Researcher

National Renewable Energy Laboratory (NREL)
Golden, CO(On-Site/Office)
Dec 11, 2025
5+ yrs exp
DoE Q or L

Working at NLR The National Laboratory of the Rockies (NLR) is located at the foothills of the Rocky Mountains in Golden, Colorado is the nation's primary laboratory for energy systems research and d...

N

Program Financial Analyst III

Sierra Nevada Corporation
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

We are seeking a Program Financial Analyst III with a Bachelor's degree in Finance, Business Administration, or related field of study and at least 6 years of relevant experience. In this challenging,...

user avatar

Adversarial Cybersecurity Researcher

National Renewable Energy Laboratory (NREL)
Golden, CO(On-Site/Office)
Dec 11, 2025
5+ yrs exp
Unspecified

Working at NLR The National Laboratory of the Rockies (NLR), located at the foothills of the Rocky Mountains in Golden, Colorado is the nation's primary laboratory for energy systems research and dev...

N

Systems Engineer

Barnett Engineering & Signaling Laboratories
Colorado Springs, CO(On-Site/Office)
Jan 5
10+ yrs exp
Unspecified

Position: Systems Engineer Location: Colorado Springs, CO 80916 Barnett Engineering & Signaling Laboratories LLC (BESL), is building the next generation of space warfighting capabilities and we are a...

user avatar

NS4R Software Developer

KBR
El Segundo, CA(On-Site/Office)
Colorado Springs, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Title:NS4R Software Developer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligen...

user avatar

NS4R Software Developer

New
KBR
Apply today! Be one of the first candidates to apply for maximum exposure.
El Segundo, CA(On-Site/Office)
Colorado Springs, CO(On-Site/Office)
Updated Today
Secret
Not Specified

Title:NS4R Software DeveloperBelong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligenc...

user avatar

Cyber Systems Engineer Technical Specialist - Cyber Ops SETA

Arcfield
Aurora, CO(On-Site/Office)
Updated Today
TS/SCI
Polygraph

OverviewArcfield was purpose-built to protect the nation and its allies through innovations in digital transformation, space mission engineering and launch assurance, miniaturized sensors and satellit...

user avatar

Military Fellowship Program: Logistics Specialist

Sierra Nevada Corporation
Lone Tree, CO(On-Site/Office)
Updated Today
Secret
Not Specified

SNC's Military Fellowship Program partners with programs such as SkillBridge and Hiring Our Heroes to provide fellowship opportunities to service members transitioning to the civilian workforce. These...

user avatar
ClearanceJobs
  • About Us
  • Support
  • Browse Jobs
  • Security Clearance FAQs
  • AgileATS
  • FedWork
  • Blog
  • Privacy Policy
  • Terms of Service
  • My Privacy Rights
  • Pay My Bill
  • Contact Us
  • EULA
Download on the App StoreGet it on Google Play

© 2026 ClearanceJobs - All rights reserved. ClearanceJobs is a DHI service.