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Keywords: Systems Engineer (TS/SCI), Location: Herndon, VA

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Full Stack Software Engineer SME

Level Required: Active TS/SCI and successfully pass a Polygraph exam. Primary Responsibilities: Architect and Develop... Area, is seeking a highly experienced, versatile, and visionary Full Stack Software Engineer Subject Matter Expert (SME...

Company: Leidos
Location: Reston, VA
Posted Date: 03 Nov 2025
Salary: $126100 - 227950 per year

Information System Security Engineer (ISSE) - TS/SCI with CI Polygraph

TITLE: Information System Security Engineer (ISSE) LOCATION: Sterling, VA CLEARANCE REQUIRED: Active DoD TS/SCI... Systems Security Engineer (ISSE) to support the design, implementation, and accreditation of secure systems for mission...

Posted Date: 11 Dec 2025

Systems Test Engineer - TS/SCI with CI Polygraph

TITLE: Systems Test Engineer LOCATION: Sterling, VA CLEARANCE REQUIRED: Active DoD TS/SCI with CI Polygraph... EMPLOYMENT TYPE: Full-time, Onsite POSITION SUMMARY Modern Government Solutions (MGS) is seeking a Systems Test Engineer...

Posted Date: 11 Dec 2025

Senior Principal Cyber Systems Engineer (DevOps Engineer) TS/SCI with CI Poly

Job Description: Senior Principal Cyber Systems Engineer (DevOps Engineer) The selected candidate will integrate... or managed) to OCP. Only Candidates with a TS/SCI CI Poly Clearance will be considered Job Duties include: Development...

Company: SHLD, Inc.
Location: Herndon, VA
Posted Date: 03 Dec 2025

Software Systems Engineer (TS/SCI)

Systems Engineer, where you’ll bridge the gap between software engineers and user needs for the US Govt geospatial analytic... to prioritize within the SAFe Agile Framework. Minimum Required Qualifications: U.S. citizen with an active TS/SCI with CI poly...

Location: Herndon, VA
Posted Date: 27 Nov 2025

Systems Engineer – Senior Level - TS/SCI Clearance Required

Description: We are seeking a highly motivated and experienced Senior Systems Engineer specializing in Sensor... Integration to join our dynamic team. This role is ideal for professionals with a strong background in systems engineering...

Company: Core-CSI LLC.
Location: Sterling, VA
Posted Date: 27 Oct 2025

Specialist, Systems Engineer TS/SCI

security. Job Title: Specialist, Systems Engineering Job Code: 30916 Job Location: Palm Bay, FL, Herndon..., VA Job Schedule: Standard 9/80 Job Description: L3Harris Technologies has an opening for a Specialist, Systems Engineering...

Posted Date: 15 Nov 2025

Systems Architect - TS/SCI with CI Polygraph

TITLE: Systems Architect LOCATION: Sterling, VA CLEARANCE REQUIRED: Active DoD TS/SCI with CI Polygraph.... REQUIRED SKILLS AND QUALIFICATIONS Must possess an active Department of Defense (DoD) TS/SCI with CI Polygraph security clearance...

Posted Date: 11 Dec 2025

Illumio Zero Trust Segmentation Platform Engineer - Active TS/SCI with CI Poly

with REST APIs, scripting (Python, Bash, PowerShell), or automation frameworks. Active TS/SCI clearance; willingness... mission-critical systems by deploying one of the most advanced segmentation platforms in the industry. This is a high-impact...

Location: Reston, VA
Posted Date: 14 Dec 2025

Endace Platform Engineer - Active TS/SCI with CI Poly

/IPFIX, etc.) Active TS/SCI clearance; willingness to take a polygraph exam Associate’s degree and 5+ years of experience...We are seeking a seasoned Endace Implementation & Sustainment Engineer to architect, deploy, integrate, and operate...

Location: Reston, VA
Posted Date: 14 Dec 2025

Case Management Engineer - Active TS/SCI with CI Poly

, secure coding standards, and platform hardening for highly regulated environments (e.g. DoD, Energy, Finance). Active TS/SCI...We are looking for a Backend Security Engineering Case Management Engineer to architect and implement the backend...

Location: Reston, VA
Posted Date: 14 Dec 2025

IDS / IPS Engineer - Active TS/SCI with CI Poly

drivers and kernel modules in an enterprise environment. TS/SCI clearance with the ability to obtain a counter-intelligence...We are seeking an experienced Network Intrusion Detection Engineer to join our cybersecurity team. The ideal candidate...

Location: Reston, VA
Posted Date: 14 Dec 2025

Arkime Engineer - Active TS/SCI with CI Poly

. Active TS/SCI clearance; willingness to take a polygraph exam Associate’s degree and 5+ years of experience supporting IT...We are seeking a highly skilled Arkime (formerly Moloch) Implementation & Sustainment Engineer to design, deploy...

Location: Reston, VA
Posted Date: 14 Dec 2025

Cyber Engineer and Penetration Tester - TS/SCI w/Poly

Cyber Engineer/Penetration Tester Herndon, VA. *TS/SCI w/ FS Poly required prior to applying* This Cyber Security..., and exploit risk and vulnerabilities of information systems. The Cyber Security Project Engineer will provide decision makers...

Posted Date: 12 Dec 2025

Suricata Engineer - Active TS/SCI with CI Poly

Suricata configuration and deployment tasks. TS/SCI clearance with the ability to obtain a counter-intelligence polygraph...We are seeking an experienced Suricata Engineer to join our cybersecurity team. The ideal candidate will possess deep...

Location: Reston, VA
Posted Date: 12 Dec 2025

ForeScout Engineer - Active TS/SCI with CI Poly

, and LAN in virtualized architectures Active TS/SCI clearance; willingness to take a polygraph exam Associate’s degree and 10... as they engineer solutions to complex challenges for customers using knowledge network engineering, Active Directory, and system...

Location: Reston, VA
Posted Date: 12 Dec 2025

Lab Support Services Engineer - TS/SCI

and technical considerations for associated problems, issues, or conflicts WHAT YOU’LL NEED: Active TS/SCI clearance and ability...Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able...

Company: General Dynamics
Location: Sterling, VA
Posted Date: 12 Dec 2025
Salary: $144500 - 195500 per year

Cyber Tools Engineer (TS/SCI CI Polygraph)

, and system administration. Qualifications of the Cyber Engineer: · TS/SCI CI Polygraph required · 4+ years of related... mission. Clearance: TS/SCI CI Polygraph (required) Location(s): Reston, VA; JBAB Washington, D.C.; College Park, MD...

Location: Reston, VA
Posted Date: 11 Dec 2025
Salary: $120000 - 145000 per year

GIS Back-End Engineer (TS/SCI)

U.S. Government Security Clearance at the TS/SCI level with required polygraph. We are seeking a Senior GIS Platform (Back-End... pipelines, and infrastructure. Minimum Qualifications: U.S. citizen with active TS/SCI clearance; willing to work onsite 80...

Location: Herndon, VA
Posted Date: 10 Dec 2025

Software Engineer TS/SCI

Software Engineer TS/SCI Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS... experience Qualifications: Required: Clearance: Must have a TS/SCI clearance, a TS/SCI with a Poly is preferred...

Location: Sterling, VA
Posted Date: 10 Dec 2025
Salary: $82100 - 172400 per year