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
IT - Security

IT - Security Jobs

Showing 3,828 Jobs

Sort by:
user avatar
Information Systems Security Officer (ISSO)
IntelliDyne, LLC•Washington, DC
Top Secret Not Specified
Information Systems Security Officer (ISSO) Location: Washington, DC (Onsite) Clearance: Top Secret Status: Exempt Salary: $95k - $110k per yearResponsibilities: Work as part of the IT Security Suppo...
Posted 10 hours ago
user avatar
Information Systems Security Engineer (ISSE) – Skill Level 3
Kaizen Approach•Annapolis Junction, MD
TS/SCI Polygraph 10+ yrs exp
Kaizen Approach is currently seeking an Information Systems Security Engineer (ISSE) to perform or review technical security assessments of computing environments to identify vulnerabilities, non-comp...
Posted 10 hours ago
user avatar
Security Engineer III
Serco Inc.•FL
Secret Not Specified
Position Description & QualificationsSerco is excited to support the Air Force Modeling and Simulation Support Services (AFMS3) contract. The primary purpose of this contract is to ensure that the Dep...
Posted 19 hours ago
user avatar
Security Engineer I
Serco Inc.•Orlando, FL
Secret Not Specified
Position Description & QualificationsSerco is excited to support the Air Force Modeling and Simulation Support Services (AFMS3) contract. The primary purpose of this contract is to ensure that the Dep...
Posted 19 hours ago
user avatar
Lead, Information Security Systems Engineering
L3Harris Technologies•Chantilly, VA
TS/SCI Polygraph
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest fo...
Posted 19 hours ago
user avatar
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin•Littleton, CO
Secret Not Specified
Job Number 734118BR Description:This position requires ability to obtain and maintain Secret clearance. Must be a U.S. Citizen.This position will perform duties as an Information Systems Security Off...
Posted 20 hours ago
user avatar
Special Programs - Senior Information System Security Manager (I
RTX•Tewksbury, MA
Top Secret Not Specified
Date Posted:2026-07-02Country:United States of America Location:US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord Position Role Type:Onsite U.S. Citizen, U.S. Person, o...
Posted 20 hours ago
user avatar
Systems Security Engineering Section Lead (M4) (Onsite)
RTX•Tewksbury, MA
Secret Not Specified
Date Posted:2026-07-02Country:United States of America Location:US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET BLDG Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requir...
Posted 20 hours ago
user avatar
Cyber Security Engineer
CSA Global LLC•Fort Leavenworth, KS
Secret Not Specified 5+ yrs exp
Client Solution Architects (CSA) is currently seeking a Cyber Security Engineer to support our program at Fort Leavenworth, KS.For nearly 50 years, CSA has delivered integrated technology and operatio...
Posted 21 hours ago
user avatar
Software Engineer for Cyber program - FS Poly
SRC•Fort Meade, MD
TS/SCI Full Scope Polygraph 5+ yrs exp
Our client is a distinguished Women-Owned Small Business and technical defense contractor providing mission-critical engineering to the IC and DoD. Operating as both a prime and subcontractor, they of...
Posted 21 hours ago
user avatar
Vulnerability Researcher - Hybrid - TS/SCI
SRC•Remote/Hybrid
TS/SCI Not Specified 5+ yrs exp
Our client has deep expertise in Vulnerability Research, CNO Development, Reverse Engineering, and Penetration Testing. They support the defense and intelligence communities along with commercial clie...
Posted 21 hours ago
user avatar
Cyber Technical Analyst Principal (TS/SCI with Poly Required)
GCI, Inc•Chantilly, VA
TS/SCI Polygraph 10+ yrs exp
Job Category: Cyber and IT Risk ManagementRequisition Number: TECHN002162Job DetailsDescriptionGCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver un...
Posted 21 hours ago
user avatar
(698) Cybersecurity Portfolio Manager
Arlo Solutions•Arlington, VA
TS/SCI Not Specified 5+ yrs exp
New(698) Cybersecurity Portfolio ManagerN/AApplyCompany Summary Arlo Solutions (Arlo) is an information technology consulting services company that specializes in delivering technology solutions. Our ...
Posted 21 hours ago
user avatar
Senior Software Engineer (U.S. Citizen/Security Clearance Requir
Task Force Talent•Chantilly, VA
TS/SCI Full Scope Polygraph 10+ yrs exp
TASK FORCE TALENT Experts in Science, Engineering, and Security Careers XFacebookPinterestCopy LinkWhatsAppEmailShareShare this jobFacebookXLinkedInEmailSenior Software Engineer (U.S. Citi...
Posted 21 hours ago
user avatar
Cyber Threat Intelligence (CTI) Analyst
Open Systems Technologies Corporation•Huntsville, AL
Top Secret Not Specified 10+ yrs exp
ResponsibilitiesAn Cyber Threat Intelligence (CTI) Analyst monitors and analyzes cyber threats, investigates security breaches, and produces reports to enhance the cybersecurity posture. They work wit...
Posted 21 hours ago
user avatar
CCNP-Security - Routing and Switching Engineer
Associates Systems LLC•Philadelphia, PA
Secret Not Specified
US CITIZENSHIP Required DoD SECRET SECURITY CLEARANCE IS Preferred. EXPERIENCE for Senior Security Network Engineer position: Eight (8) years' experience in network security, demonstrating strong e...
Posted 1 day ago
user avatar
Trellix / HBSS Administrator DOD Secret
Associates Systems LLC•Philadelphia, PA
Secret Not Specified
Active DOD Secret or Interim Secret IAT Level III a MUST Current CASP+ CE, Security-X, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH Certification required #CJ ALL QUALIFIED RESUMES WILL BE ...
Posted 1 day ago
user avatar
Systems Security Engineer- DOD Secret - Anti-Tamper
Associates Systems LLC•Lowell, MA
Secret Not Specified
All Qualified candidates will be responded to in 24 hours or less Onsite in Tewksbury Ma Employment type: Full Time w-2 or Contract Rate: open to Negotiation Benefits: including Health, Dental Vision...
Posted 1 day ago
user avatar
CCNP-Security - Routing and Switching Engineer
Associates Systems LLC•Philadelphia, PA
Secret Not Specified
US CITIZENSHIP Required DoD SECRET SECURITY CLEARANCE IS Preferred. EXPERIENCE for Senior Security Network Engineer position: Eight (8) years' experience in network security, demonstrating strong e...
Posted 1 day ago
user avatar
DOD Secret- IA Cyber Navy Compliance Specialist- IAT Level III-
Associates Systems LLC•Indian Head, MD
Secret Not Specified
New contract award- all qualified resumes will be responded to in 24Hrs or less This is a full-time direct position - Multiple openings DOD active or interim secret required All work to be performed ...
Posted 1 day ago
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