Sci Clearance Jobs In Illinois - 256 Job Positions Available

1 – 20 of 256 jobs
PGTEK jobs

Job Title: AI Platform – Customer Success Engineer Location: McLean, VA (Onsite) Clearance Requirement: Active TS/SCI with CI Polygraph (required) Position Summary We are seeking an AI Platform Customer Success Engineer to join a diverse, high-performing team of

PGTEK  22 days ago
GCI jobs

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data

GCI  24 days ago
GCI jobs

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data

GCI  24 days ago
GCI jobs

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data

GCI  24 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:Top Secret SCI + Polygraph Public Trust/Other Required:None Job Family:Cyber and IT Risk Management Job Qualifications: Skills:Cybersecurity Risk Management, Information Systems, Security

General Dynamics Information Technology  23 days ago
GCI jobs

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data

GCI  22 days ago
PGTEK jobs

AI Platform Engineer Location: McLean, VA (Onsite 5 Days per Week) Employment Type: Full-Time Salary Range: $125,000 - $185,000 Clearance Required: Active TS/SCI with Counterintelligence Polygraph Certification Requirement: Current IAM Level II certification meeting DoD 8570 IAT requirements

PGTEK  22 days ago
PGTEK jobs

Senior System Administrator (Windows) Location: McLean, VA (transitioning to Chantilly, VA) Clearance Required: Active TS/SCI with CI Polygraph Salary Range: $185,000 – $265,000 Travel: Up to 20% Overview We are seeking a highly skilled Senior System Administrator to

PGTEK  18 days ago
GCI jobs

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data

GCI  16 days ago
STR jobs

About the Team STR’s Analytics & C2 (AC2) Division researches and develops novel technologies to solve challenging national security problems through advanced analytics and C2 technologies. Our team consists of passionate and motivated engineers and scientists

STR  14 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:Top Secret SCI + Polygraph Public Trust/Other Required:None Job Family:Administration Job Qualifications: Skills:Administrative Support, Inventory Operations, Responsible, Strong writer and communicator, Travel

General Dynamics Information Technology  14 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:None Public Trust/Other Required:None Job Family:IT Infrastructure and Operations Job Qualifications: Skills:Database Administration, Database Schemas, Database Structures, Oracle Database Cloud Services

General Dynamics Information Technology  14 days ago
RTX jobs

Date Posted:2026-06-11 Country:United States of America Location:US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to

RTX  15 days ago
GDIT jobs

Type of Requisition:Incumbent Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:Top Secret SCI + Polygraph Public Trust/Other Required:None Job Family:IT Infrastructure and Operations Job Qualifications: Skills:Agile Delivery, DevSecOps, Scrum Certifications:None Experience:15 +

GDIT  15 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:Top Secret SCI + Polygraph Public Trust/Other Required:None Job Family:IT Infrastructure and Operations Job Qualifications: Skills:Agile Methodology, CI/CD, Cloud Platform, DevSecOps Certifications:None

General Dynamics Information Technology  12 days ago
STR jobs

About the Team STR’s Analytics and C2 Division researches and develops novel technologies to solve challenging national security problems through advanced analytics. Our team consists of passionate and motivated engineers and scientists with advanced degrees in

STR  10 days ago
RTX jobs

Date Posted:2026-06-17 Country:United States of America Location:US-MA-WOBURN-WB2 ~ 225 Presidential Way ~ GODDARD BLDG Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to

RTX  9 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:None Public Trust/Other Required:None Job Family:Software Engineering Job Qualifications: Skills:UI/UX Design, UI Design Development, User Interfaces (UI) Certifications:None Experience:15 + years

General Dynamics Information Technology  9 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:None Public Trust/Other Required:None Job Family:Data Science and Data Engineering Job Qualifications: Skills:Application Programming Interface (API), DevOps, IT Systems Integration Certifications:None

General Dynamics Information Technology  9 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:None Public Trust/Other Required:None Job Family:Software Engineering Job Qualifications: Skills:Full Stack Development, JavaScript API, Java Software Development, Lean Agile Certifications:None Experience:8

General Dynamics Information Technology  9 days ago

Subscribe for job alerts and resources to make your job search easier!

Confirmation email sent to

Check your email and click on the link to start receiving your job alerts

Receive the latest job openings for:

sci clearance jobs in il

You also might be interested in:

Front End Developer

Transparency

Microservices

Classifieds

Retirement Savings

Senior Front End Developer

Polygraph

Web Design

Bug Tracking

User Experience Design

Confirmation email sent to

Check your email and click on the link to start receiving your job alerts

All Filters Apply
Sort by
Employer/Recruiter
Experience