Senior Cross‑Domain Solutions Engineer – TS/SCI | Poly Ready

General Dynamics Information Technology, Inc.; Springfield (VA); On-site; USD 147,000 - 199,000; Full time

Job summary

GDIT is seeking a Cyber Systems Engineer III – ECDS (Cross Domain Engineer) to support our Intelligence Community customer in Springfield, VA. In this role, you will lead the engineering and security design of Cross Domain Solutions (CDS), guide the evaluation of new technologies, ensure alignment with mission requirements, and assist in driving future capabilities.

You’ll bring TS/SCI clearance with polygraph, a technical bachelor’s degree or equivalent, 6+ years in cyber engineering across

Qualifications

• Active TS/SCI clearance with ability to obtain a Polygraph.
• Bachelor’s degree in a technical field, or equivalent experience.
• 6+ years of experience as a Cyber Engineer across application, system, and network cybersecurity domains.
• Active IAT Level II Approved 8140 (8570) Baseline Certification (Security+CE, etc.).
• Hands-on experience with Cross Domain Solutions and CDS environments.

Responsibilities

• Lead the security design, architecture, and engineering of Cross Domain Solutions.
• Conduct analysis of alternatives for new or evolving data flows.
• Identify solution constraints and define evaluation criteria.
• Prepare complex design packages integrating multiple enterprise systems.
• Update design documents to incorporate new information, operational insights, and lessons learned.
• Develop technical point papers and documentation on CDS-related topics.
• Gather and validate requirements from stakeholders and mission partners.
• Schedule and participate in Technical Exchange Meetings (TEMs) to discuss design and implementation strategies.
• Coordinate implementation timelines and technical approaches with engineering and project management personnel.
• Provide technical inputs to support government strategy, planning, and modernization efforts.

Skills

Cross Domain Solutions

Cybersecurity Operations

Network Engineering

Education

Bachelor's degree in a technical field, or equivalent experience

Tools

IAT Level II 8140 (8570) Baseline Certification (Security+CE, etc.)

Job description

GDIT is seeking a Cyber Systems Engineer III – ECDS (Cross Domain Engineer) to support our Intelligence Community customer in Springfield, VA. In this role, you will lead the engineering and security design of Cross Domain Solutions (CDS), guide the evaluation of new technologies, ensure alignment with mission requirements, and assist in driving future capabilities.

You’ll bring TS/SCI clearance with polygraph, a technical bachelor’s degree or equivalent, 6+ years in cyber engineering across