Cross Domain Solution

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job

Qualifications:

Skills:
Information Systems, System Administration, Systems Management Certifications: None

Experience:
5 + years of related experience US Citizenship Required: Yes

Job Description
Cross Domain Solution Engineer Advance how our customers operate while you advance your career. Join GDIT as a Cross Domain Solution (CDS) Engineer and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you. As a CDS Engineer, the work you’ll do at GDIT will be impactful to the mission of our US Government partners. You will play a crucial role in supporting secure, multi-directional information sharing across security boundaries by deploying, configuring, administering, and maintaining high-assurance Cross Domain Solutions.

MEANINGFUL WORK AND PERSONAL IMPACT CDS Integration & Lifecycle Management: Support the integration, administration, and lifecycle management of Lockheed Martin Radiant Mercury, Everfox Trusted Gateway System (TGS), and Everfox High-Speed Guard (HSG) across multi-level classified enclaves (such as NIPRNet, SIPRNet, and MPN). Requirements & Ruleset Development: Collaborate with operational personnel, government stakeholders, cybersecurity teams, and technical staff in the identification of cross-domain information exchange requirements to build and test customized security rulesets. Operational Efficiency & Automation: Drive operational efficiency through automation, policy tuning, data validation, and continuous process improvement, reducing manual effort while keeping transfer latencies minimal. CDS Product Expertise: Install, configure, integrate, patch, and administer Lockheed Martin Radiant Mercury, Everfox Trusted Gateway System (TGS), and Everfox High-Speed Guard (HSG) across physical environments.

WHAT YOU’LL NEED TO SUCCEED Bring your technology expertise and drive for innovation to GDIT. The CDS Engineer must have:

Education:
Technical training, certification, or degree in Information Technology, Computer Science, Information Systems, Software Development, Data Analytics, or a related field.

Experience:
5+ years of systems engineering or administration experience supporting DoD-approved Cross Domain Solutions (CDS). Required Technical

skills:
OS Administration & Hardening: Administer and harden supporting operating systems (Red Hat Enterprise Linux and legacy Solaris) and configure/troubleshoot SELinux policies, labeling, and mandatory access controls (MAC). Scripting & Automation: Strong scripting skills (Bash, Python, or Perl) to automate file movements, validate structured formats, and parse system audit logs. Network fundamentals: Basic understanding of networking principles. Data Protocols & Formats: Deep understanding of data serialization formats and protocols, including XML, JSON, CSV, PDF, and military tactical data formats (e.g., Link 16, USMTF, NITF, MPEG, TENA, DIS). Centralized Management: Proficiency utilizing the Everfox Control Center for centralized system management, configuration deployment, and health/status monitoring. Certifications: DoD 8570/8140 IAT Level II certification (such as CompTIA Security+ CE) required; higher-level cybersecurity certifications (such as CISSP, CASP+, or Red Hat Certified System Administrator/RHCSA) are highly preferred. Clearance: Active TS/SCI required to start Role

requirements:
Strong communication skills with the ability to explain complex security boundaries, rulesets, and risk assessments to both technical and non-technical stakeholders. Direct experience navigating the National Cross Domain Strategy and Management Office (NCDSMO) “Raise the Bar” (RTB) compliance guidelines. Solid understanding of the Risk Management Framework (RMF) (NIST SP 800-53, CNSSI 1253) to help draft and maintain System Security Plans (SSPs), Security Control Traceability Matrices (SCTMs), and Concept of Operations (ConOps). Experience preparing for and supporting independent Lab-Based Security Assessments (LBSA) and Site-Based Security Assessments (SBSA) to obtain an Authority to Operate (ATO).

Location:
Full-time, on-site in Wiesbaden, Germany TESA Requirement: Bachelor’s degree plus 3 years of recent specialized experience; OR; An associate’s degree plus 7 years of recent specialized experience; OR; A major certification plus 7 years of recent specialized experience; OR; 11 years of recent specialized experience.

GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunities Support: An internal mobility team focused on helping you achieve your career goals Rewards: Comprehensive benefits and wellness packages, 401K wit