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 20,583 Jobs

Sort by:

Junior Reverse Engineer [$197k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
2+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Analyze malware and perform reverse engineering using IDA Pro and Ghidra to eva...

user avatar

Mid-Level Python Software Engineer [$235k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Perform access discovery, enablement, and mobile application characterization. ...

user avatar

Mid-Level CNO Software Engineer [$235k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Perform software engineering, reverse engineering, and vulnerability research. ...

user avatar

Mid-Level Protocol Analyst [$220k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Analyze signal characteristics to determine signal structure and define key para...

user avatar

Mid-Level Network Protocol Analyst [$220k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Perform telecom-based network analysis with a primary focus on network layer pro...

user avatar

Mid-Level AI/ML Data Scientist [$231k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Develop and deploy AI/ML models to support malware analysis efforts. • Co...

user avatar

Mid-Level CNO Data Scientist [$231k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Apply data science, artificial intelligence, and automation techniques to data h...

user avatar

Junior Python Data Scientist [$188k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
2+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Perform data science, big data aggregation, and automation using advanced analyt...

user avatar

Tools Software Engineer

New
Castello Systems, Inc.
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
10+ yrs exp
TS/SCI
Full Scope Polygraph

As a Tools Software Engineer, you will support the deployment, integration, and sustainment of enterprise monitoring and management tools that provide visibility into system health, application perfor...

user avatar

Mid-Level DevOps Systems Engineer [$314k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Lead a DevOps and system administration team managing Linux, bare-metal, and AWS...

user avatar

Mid-Level AI Systems Engineer [$314k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Lead an engineering team leveraging LLMs and prompt engineering to design, gener...

user avatar

Mid-Level Java Software Engineer [$252k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Develop software applications using Java, Spring, Hibernate, C#, JavaScript, Dock...

user avatar

Mid-Level Cloud Software Engineer [$335k/yr+] TS/SCI-FS Poly

New
SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Remote/Hybrid(On/Off-Site)
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Develop operational prototypes using data science and machine learning technique...

user avatar

Sr. Cyber Security Engineer (Cribl/Splunk)

New
Catapult Staffing
Apply today! Be one of the first candidates to apply for maximum exposure.
Chantilly, VA(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI
Full Scope Polygraph

Sr. Cyber Security Engineer - Splunk/Cribl TS/SCI with CI Poly We are looking for a highly skilled Sr. Cyber Security Engineer (Splunk/Cribl) to join our cybersecurity team. The ideal candidate will ...

user avatar

Network Engineer

New
Super Systems Inc
Apply today! Be one of the first candidates to apply for maximum exposure.
Peterson Sfb, CO(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI

Job Title: Theater (Network) Engineer Location: US-CO-Colorado Springs Schedule: M-F Days Salary: 125-135k Clearance Needed: Top Secret SCI required Certifications: IAT lvl II (Security+, etc), CCNA p...

user avatar

Technical Instructor

New
Base-2 Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Doral, FL(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI
None

Job DescriptionPosition SummaryBase-2 Solutions is seeking a Technical Instructor to support USSOUTHCOM J26 ENHANCED DOMAIN AWARENESS task order. This role involves developing and delivering training ...

user avatar

Training Coordinator

New
Base-2 Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Doral, FL(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI
None

Job DescriptionPosition SummaryBase-2 Solutions is seeking a Training Coordinator to support USSOUTHCOM J26 ENHANCED DOMAIN AWARENESS task order. The role involves overseeing Open-Source Intelligence ...

user avatar

TechELINT Analyst

New
Base-2 Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Washington, DC(On-Site/Office)
Posted today
TS/SCI
None

Job DescriptionPosition SummaryBase-2 Solutions is seeking a TechELINT Analyst to support a Department of the Navy customer in the Washington, DC area. This role provides interpretive pulse-level and ...

user avatar

TechELINT Analyst

New
Base-2 Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Washington, DC(On-Site/Office)
Posted today
TS/SCI
None

Job DescriptionPosition SummaryBase-2 Solutions is seeking a TechELINT Analyst to support a Department of the Navy customer in the Washington, DC area. This role performs interpretive pulse-level and ...

user avatar

Systems Engineer 6 (AI-focused)

New
Base-2 Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Annapolis Junction, MD(On-Site/Office)
Posted today
10+ yrs exp
TS/SCI
Full Scope Polygraph

Job DescriptionPosition SummaryBase-2 Solutions is seeking a Systems Engineer 6 to apply senior systems engineering expertise across the full system life cycle, ensuring the technical integrity, quali...

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