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Keywords: Software Engineer- TS/SCI with Polygraph, Location: Chantilly, VA

Page: 7

Operational Systems Engineer (Full Performance)

(TS/SCI) clearance, with polygraph • Background in Computer Science, Information Technology, Cyber Security, Cyber...Overview: Byte Systems, a subsidiary of VTG, is seeking a Full Performance Operational Systems Engineer...

Company: VTG
Location: Chantilly, VA
Posted Date: 06 Feb 2026

Operational Systems Engineer (Full Performance)

Do you have what it takes? Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance, with polygraph • Background... Engineer. What will you do? Contribute to the design, development, and testing of applications using modern standards...

Company: VTG Defense
Location: Chantilly, VA
Posted Date: 06 Feb 2026

Modeling And Simulation Engineer

support required Qualifications: Required: Active TS/SCI with polygraph clearance Bachelor's degree (Master's degree...Title: Modeling And Simulation Engineer Job Posting Description Belong. Connect. Grow. with KBR! KBR’s National...

Company: KBR
Location: Chantilly, VA
Posted Date: 06 Feb 2026

Sr. Radar Payload Systems Engineer

during integration and launch phases. Required Qualifications: Clearance: Active TS/SCI clearance (with current polygraph...Title: Sr. Radar Payload Systems Engineer Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team...

Company: KBR
Location: Chantilly, VA
Posted Date: 05 Feb 2026

Systems Engineer

communication Qualifications: Active TS/SCI with Polygraph required. Requires BS degree and 11-15 years of prior relevant...Overview: VTG is seeking a Systems Engineer for a technical development program supporting the Sponsor’s Entitlement...

Company: VTG
Location: Chantilly, VA
Posted Date: 04 Feb 2026

Systems Engineer

. The Systems Engineer will work with a large team of developers, software engineers and data engineers. Primary... cadence with release notes documentation and end user communication Do you have what it takes? Active TS/SCI...

Company: VTG Defense
Location: Chantilly, VA
Posted Date: 04 Feb 2026

Modeling And Simulation Engineer - Mid

Working Hours: Standard Qualifications: Required: Active TS/SCI with Polygraph required. Bachelor's degree (Master...Title: Modeling And Simulation Engineer - Mid Belong. Connect. Grow. with KBR! KBR’s National Security Solutions...

Company: KBR
Location: Chantilly, VA
Posted Date: 01 Feb 2026

Network Design Engineer

(WANs). Basic Requirements Required Clearance to be considered: TS/SCI with Polygraph Candidate must have 10 years...The Digital Modernization Sector at Leidos has an opening for a Network Engineer (Campus Area Network/Local Area...

Company: Leidos
Location: Chantilly, VA
Posted Date: 01 Feb 2026
Salary: $92300 - 166850 per year

Network Design Engineer

(WANs). Basic Requirements Required Clearance to be considered: TS/SCI with Polygraph Candidate must have 10 years...The Digital Modernization Sector at Leidos has an opening for a Network Engineer (Campus Area Network/Local Area...

Company: Leidos
Location: Chantilly, VA
Posted Date: 01 Feb 2026
Salary: $92300 - 166850 per year

Network Design Engineer

(WANs). Basic Requirements Required Clearance to be considered: TS/SCI with Polygraph Candidate must have 10 years...The Digital Modernization Sector at Leidos has an opening for a Network Engineer (Campus Area Network/Local Area...

Company: Leidos
Location: Chantilly, VA
Posted Date: 01 Feb 2026
Salary: $92300 - 166850 per year

UI/UX Engineer

Required Qualifications Active TS/SCI with Polygraph Requires BS degree and12+ years of prior relevant. Additional experience in lieu...Leidos has immediate opportunities for a UI/UX Engineer to join a team building innovative software supporting the...

Company: Leidos
Location: Chantilly, VA
Posted Date: 01 Feb 2026

Senior Platform Engineer

: Required Qualifications Active TS/SCI with Polygraph Bachelor’s degree with 6–10 years of relevant experience Demonstrated experience...Description: Markon is seeking a Platform Engineer to support a technical development program for an Intelligence...

Company: Markon
Location: Chantilly, VA
Posted Date: 31 Jan 2026

Systems Engineer

. Security Active TS/SCI clearance, or ability to obtain SCI and successfully complete a polygraph. Desired Qualifications...Responsibilities We’re looking for a Junior Systems Engineer to support the development and sustainment of geospatial...

Posted Date: 31 Jan 2026
Salary: $80000 - 128000 per year

Network Engineer (Intelligence Center)

and work experience. Active TS/SCI with CI Poly Experience integrating emerging cybersecurity capabilities, hardware... Intelligence Systems is looking for a Principal Network Engineer role that will be supporting multiple classified infrastructures...

Company: Mitre
Location: Chantilly, VA
Posted Date: 29 Jan 2026

Senior O&M Kubernetes Engineer

documentation Clearance Requirements: Must have a current/active TS/SCI with polygraph Physical Requirements: Must be able... Analytics and Software Development. Your journey to impactful work and rapid growth starts now-be extraordinary at MANTECH...

Company: ManTech
Location: Chantilly, VA
Posted Date: 29 Jan 2026

Lead Engineer

foundations Familiar with NIST SP 800-53, SSPs, and POA&Ms Clearance Requirements: Must have a current/active TS/SCI... Analytics and Software Development. Your journey to impactful work and rapid growth starts now-be extraordinary at MANTECH...

Company: ManTech
Location: Chantilly, VA
Posted Date: 29 Jan 2026

Network Management Systems (NMS) Lead Engineer (IT Enterprise Architect Level III) (Government)

performance. Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph) Required Qualifications: Candidate... Lead Engineer will serve as the subject matter expert in network management systems, overseeing the implementation of large...

Company: AT&T
Location: Chantilly, VA
Posted Date: 29 Jan 2026
Salary: $118700 - 224141 per year

Data Engineer

. Clearance Requirements: Must have a current/active TS/SCI w/Polygraph. Physical Requirements: Must be able to remain... with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development...

Company: ManTech
Location: Chantilly, VA
Posted Date: 28 Jan 2026

Cloud Systems Engineer - Infrastructure

systems. Qualifications: Active TS/SCI with Full Scope Polygraph clearance. BS degree and 8+ years of relevant experience...Description: Markon is seeking a Cloud/Infrastructure Engineer to provide technical support for an intelligence...

Company: Markon
Location: Chantilly, VA
Posted Date: 28 Jan 2026

Expert Level Systems Engineer

and/or DoD program or project experience. TS/SCI clearance, with ability to obtain SCI and successfully pass a polygraph...Responsibilities We are seeking an Expert-Level Systems Engineer to help lead and shape enterprise-scale engineering...

Posted Date: 24 Jan 2026