ClearanceJobs
  • Candidates
  • Employers
  • Hiring Companies
  • News & Career Advice
  • Login
  • Register now
Experience
City
State
Clearance
Posted Within
Employer Name
Country
Job Category
Job Type
Polygraph
Remote/Hybrid
Salary
Gaithersburg, MD

Security Clearance Jobs in Gaithersburg, MD

Showing 72 Jobs

Sort by:

Devops / Systems Engineer

New
Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted today
Top Secret
Not Specified

R-00187784Description Leidos is looking to hire a Devops / Systems Engineer to work on our Cloud Automation Advancements Team. The qualified candidate must have an active TS security clearance, and wi...

user avatar

User Engagement Engineer SME

New
Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted today
Top Secret
Polygraph

R-00187773Description Job Description:Make an Impact Where Technology Meets National SecurityImagine a role where your technical expertise doesn't just improve software, it transforms how intellig...

user avatar

Mid-Level Test Engineer

New
Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted today
TS/SCI
Polygraph

R-00187767Description Job Description:Are you passionate about delivering high-quality software that directly supports our nation’s security? Leidos is seeking an experienced Mid-Level Test Engi...

user avatar

C++ Software Engineer

New
Eliassen Group
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted yesterday
Public Trust
Not Specified

Description: Hybrid 2 days/ WK in Gaithersburg, MDOur client seeks two C++ Software Engineers at the mid or senior level to develop and integrate software on Linux. You will design, code, test, and in...

user avatar

Lead AI Software Developer

New
Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted yesterday
DoE Q or L
Not Specified

R-00187622Description Leidos is seeking a Lead AI Software Developer to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Leidos Common Automation P...

user avatar

Scientist, Downstream Process Development

New
Guidehouse
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 2 days ago
Public Trust
None

Job Family :Scientist Travel Required :None Clearance Required :Ability to Obtain Public TrustWe are seeking a Scientist to support NIH with the development and clinical advancement of vaccine and th...

user avatar

Scientist

New
Guidehouse
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 2 days ago
Public Trust
None

Job Family :Scientist Travel Required :None Clearance Required :Ability to Obtain Public Trust What You Will Do : We are currently searching for Scientist to independently provide support services to...

user avatar

Senior Release Manager

New
Ennoble First
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Alexandria, VA(On-Site/Office)
Chantilly, VA(On-Site/Office)
Englewood, CO(On-Site/Office)
Saint Louis, MO(On-Site/Office)
Posted 5 days ago
TS/SCI
Polygraph

Senior Release Manager Location: Gaithersburg, MD (Primary); Alexandria, VA; Chantilly, VA; Englewood, CO; St. Louis, MO; Tucson, AZ Required Clearance: Active TS/SCI with Polygraph Eligibility Emplo...

user avatar

Chief Systems Architect

New
Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
Intel Agency
Polygraph

R-00187355Description Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to suppor...

user avatar

Specimen Technician - 3rd Shift (US Citizen)- Gaithersburg, Mary

New
Altimeter Solutions
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
Secret
Not Specified

The SPT I is responsible for general support functions within the Specimen Processing Department. This position requires a data entry background. Functions performed may include but are not limited to...

user avatar

Senior Systems Administrator / Help Desk Engineer

New
Ennoble First
Gaithersburg, MD(On-Site/Office)
Alexandria, VA(On-Site/Office)
Chantilly, VA(On-Site/Office)
Englewood, CO(On-Site/Office)
Saint Louis, MO(On-Site/Office)
Posted 1 week ago
TS/SCI
Polygraph

Senior Systems Administrator / Help Desk Engineer Location: Gaithersburg, MD (Primary); Alexandria, VA; Chantilly, VA; Englewood, CO; St. Louis, MO; Tucson, AZ Required Clearance: Active TS/SCI with ...

user avatar

System Integration and Test Enginer

New
Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
Public Trust
Not Specified

R-00183098Description Leidos is seeking Systems Integration and Test Engineers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight se...

user avatar

Software Engineer (Python/Django)

Aqua IT
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
5+ yrs exp
TS/SCI

Aqua IT is a growing defense technology company delivering software, cloud, cybersecurity, and AI solutions to the Department of Defense and Intelligence Community. We build mission-critical capabilit...

user avatar

Scientist

Guidehouse
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
Public Trust
None

Job Family :Scientist Travel Required :None Clearance Required :Ability to Obtain Public Trust What You Will Do : We are currently searching for a Scientist to satisfy the overall operational objecti...

user avatar

Vaccine Immunology Program (VIP) Scientist

Guidehouse
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
Public Trust
None

Job Family :Scientist Travel Required :None Clearance Required :Ability to Obtain Public Trust What You Will Do : We are seeking a Scientist to support the Vaccine Immunology Program (VIP) to satisfy...

user avatar

Forensic Research Scientist (Scientist/Engineer III LCAT)

FWI (FedWriters, Inc.)
Remote/Hybrid
20899(Off-Site/Hybrid)
Posted 1 week ago
Public Trust
Not Specified

If you're a forensic science professional who wants your research to directly shape national standards, this is the opportunity to take notice of. As a key technical and programmatic support resource ...

user avatar

Release Train Engineer

Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
Public Trust
Not Specified

R-00187091Description Leidos is seeking an experienced Release Train Engineer (RTE) to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flig...

user avatar

DevOps Engineer

Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
Intel Agency
Polygraph

R-00187071Description The Leidos Intel sector has an opening for a DevOps Engineer to assist with the development, integration, deployment, and sustainment of mission critical systems.Primary Responsi...

user avatar

Mid-Level Software Engineer

Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
TS/SCI
Polygraph

R-00187070Description Are you ready to build software that makes a real-world impact? Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Inte...

user avatar

Senior Release Manager

Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Gaithersburg, MD(On-Site/Office)
Posted 1 week ago
TS/SCI
Polygraph

R-00187068Description Are you passionate about leading high-performing Agile teams and delivering mission-critical capabilities that make a real-world impact? Leidos is seeking an experienced Senior R...

user avatar
ClearanceJobs
  • About Us
  • Support
  • Browse Jobs
  • Security Clearance FAQs
  • AgileATS
  • FedWork
  • Blog
Download on the App StoreGet it on Google Play
© 2026 ClearanceJobs - All rights reserved. ClearanceJobs is a DHI service .
  • Pay My Bill
  • EULA
  • Privacy Policy
  • Terms of Service
  • My Privacy Rights
  • Contact Us