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
Top Secret/SCI

Top Secret / SCI Clearance Jobs

Showing 20,518 Jobs

Sort by:
user avatar
Joint Fires Network (JFN) Engineer I
RMantras
TS/SCI Not Specified 2+ yrs exp
Primary ResponsibilitiesExecute network operations to include configuration and analysis of customer circuits across optical and electro-optical multiplexers, routers, and switches.Perform real-time c...
Posted just now
user avatar
Joint Fires Network (JFN) Engineer III
RMantras
TS/SCI Not Specified 5+ yrs exp
Primary ResponsibilitiesExecute network operations to include configuration and analysis of customer circuits across optical and electro-optical multiplexers, routers, and switches.Perform real-time c...
Posted just now
user avatar
Requirements Engineers and Systems Engineers
James Scott Group
TS/SCI CI Polygraph 5+ yrs exp
James Scott, L.L.C., is actively seeking Requirements Engineers and Systems Engineers with RFC experience to support one of it's clients and federal TIER-1 customers. A tremendous opportunity for the...
Posted just now
user avatar
AI/Data Solutions Engineer TS/SCI (FSP)
IBM
TS/SCI Full Scope Polygraph
At IBM, the work is about building things that matter. You will be working on real problems in a mission environment where the output of your work is used, not just presented. We are looking for a han...
Posted just now
user avatar
Windows Systems Administrator
Leidos•Suitland, MD
TS/SCI Not Specified $73,450 - $132,775 / yr
R-00189142Description Windows Systems Administrator Location: Suitland, MDSecurity Clearance: Active TS/SCI RequiredLeidos is seeking a Windows Systems Administrator III to support mission critical in...
Posted just now
user avatar
Sr. All Source Intelligence Analyst (current Intelligence)
Markon•Annapolis, MD
TS/SCI CI Polygraph $120,000 - $200,000 / yr
PLEX Solutions, A Part of Markon is building a talent pool of Intelligence Analysts to support future Intelligence Community missions. Selected candidates will be considered for future openings aligne...
Posted 1 hour ago
user avatar
Sr. All Source Intelligence Analyst (production)
Markon•Annapolis, MD
TS/SCI CI Polygraph $120,000 - $200,000 / yr
PLEX Solutions, A Part of Markon is building a talent pool of Intelligence Analysts to support future Intelligence Community missions in the Annapolis Junction, MD area. This pipeline opportunity is i...
Posted 1 hour ago
user avatar
Senior Cybersecurity Systems Engineer – Cloud Modernization
FullScope Staffing•Laurel, MD
TS/SCI Full Scope Polygraph 10+ yrs exp
We are seeking a senior-level cybersecurity systems engineer to support transformation and modernization initiatives. This position serves as the primary liaison between technical organizations, coord...
Posted 1 hour ago
user avatar
Maritime Imagery Analyst
FullScope Staffing•Suitland, MD
TS/SCI 2+ yrs exp $88,000 - $115,000 / yr
Seeking a Maritime Imagery Analyst to work in the Suitland Maryland area. An active TS/SCI clearance is mandatory and all work will be done in person. Job Description: Provide full-time Maritime Imag...
Posted 1 hour ago
user avatar
Outreach Subject Matter Expert Level 3 (OSME3) | TS/SCI with a f
NuAxis Innovations LLC•Annapolis
TS/SCI Full Scope Polygraph
Overview We are seeking a mid- to senior-level Technical Operations Support Analyst to support a mission-critical software environment within a classified government program. This role sits at the int...
Posted 2 hours ago
user avatar
Cyber Defense Operator - Intermediate
SMS Data Products Group, Inc•Lackland Afb, TX
TS/SCI Not Specified
The Cyber Defense Operator (CDO) supports the Air Force Computer Emergency Response Team (AFCERT) mission by providing continuous, near real-time network security monitoring, intrusion detection analy...
Posted 2 hours ago
user avatar
Full Stack Software Engineer III w/ TS/SCI Polygraph
Deloitte•Baltimore, MD
TS/SCI Polygraph $119,000 - $198,400 / yr
Our AI & Engineering team helps organizations modernize technology platforms, accelerate innovation, and solve complex business and mission challenges. In this role, you will help design and deliv...
Posted 5 hours ago
user avatar
DevOps Software Engineer III with TS/SCI Polygraph
Deloitte•Baltimore, MD
TS/SCI Polygraph $119,000 - $198,400 / yr
Our AI & Engineering team helps organizations transform technology platforms, accelerate innovation, and solve complex business and mission challenges. In this role, you will support a US Governme...
Posted 5 hours ago
user avatar
AI and Data Science Engineer III with TS/SCI Polygraph
Deloitte•Baltimore, MD
TS/SCI Polygraph $119,000 - $198,400 / yr
We are seeking an AI and Data Science Engineer III to help transform workforce and personnel data into actionable insights. In this role, you will apply data science, operations research, and visualiz...
Posted 5 hours ago
user avatar
Chief Architect
Sierra Space•Centennial, CO
TS/SCI Not Specified $198,936 - $273,537 / yr
Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.  Sierra Space team members share a spirit of innovation and col...
Posted 14 hours ago
user avatar
Guidance, Navigation & Controls Engineer III (Clearance Required
Sierra Space•Centennial, CO
TS/SCI Not Specified $129,776 - $178,441 / yr
Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.  Sierra Space team members share a spirit of innovation and col...
Posted 14 hours ago
user avatar
Chief Engineer (Clearance Required)
Sierra Space•Centennial, CO
TS/SCI Not Specified $198,936 - $273,537 / yr
Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.  Sierra Space team members share a spirit of innovation and col...
Posted 14 hours ago
user avatar
Site Lead / Senior Instructor - Naval Training Support (NSFS / G
Strategic Resilience Group•San Diego, CA
TS/SCI Not Specified
Position Responsibilities Serve as the primary point of contact for the Contracting Officer and COR Lead daily contract operations and ensure performance compliance Manage personnel, training schedule...
Posted 14 hours ago
user avatar
Senior Technical Architect (AI Platforms / IRAD Technical Lead)
Strategic Resilience Group•Remote/Hybrid, Not provided
TS/SCI Not Specified
Position Responsibilities Serve as the technical lead for internal R&D (IRAD) initiatives focused on AI/ML-driven mission platforms Architect and design LLM-enabled systems, including agent-based work...
Posted 14 hours ago
user avatar
Mid-Level Python ML Data Scientist [$254/yr+] TS/SCI-FS Poly
SYSTOLIC•Herndon, VA
TS/SCI Full Scope Polygraph 5+ yrs exp
Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Develop machine learning models for text classification and topic modeling. ...
Posted 15 hours 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