Cross Domain Systems Engineer (CDS)

CACI International; Maryland; On-site; USD 108,000 - 228,000; Full time

Job summary

CACI International seeks a Cross Domain Systems Engineer to support selection, configuration, integration, assessment, authorization, and sustainment of secure information-sharing across classification domains. The CDS Engineer will advance Army tactical network protection and enable secure data transfer between mission systems across multi-domain environments.

Key responsibilities include engineering and testing CDS solutions, secure architecture design, documentation, RMF alignment, and

Qualifications

• Required: Bachelor’s degree in a related discipline and 3–5 years of relevant experience.
• Experience engineering or integrating Cross Domain Solutions and multi-domain security architectures.
• Familiarity with RMF, ICD 503, NIST 800-53 and DoD/IC cross-domain policies.

Responsibilities

• Engineer, integrate, test, and validate Cross Domain Solutions for tactical mission systems.
• Support secure architecture design, data flow engineering, and compliant implementations.
• Develop and maintain system design and interface documents and assessments.
• Perform requirements analysis, modeling, testing, and verification activities.
• Assist with DoW and Army cross-domain authorization processes and assessments.
• Analyze cyber, network, and data-handling risks with DoD policy alignment.
• Collaborate with Government engineers, program leads, and system integrators.
• Provide technical expertise during fielding, lab testing, and operational assessments.
• Support configuration management, troubleshooting, and lifecycle sustainment.

Skills

Cross Domain Solutions

RMF & DoD policies

Linux systems

Network protocols

Guard technologies

8570 IAT

DevSecOps scripting

Education

Bachelor's degree

Master’s degree

Tools

Radiant Mercury

High Speed Guard

TACDS

ISSE Guard

OWL XD

Job description

Job Title: Cross Domain Systems Engineer (CDS)

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

* * *

CACI is seeking a highly skilled Cross Domain Solutions Engineer to support the selection, configuration, integration, assessment, authorization, and sustainment of secure information-sharing capabilities across multiple classification domains. The CDS Engineer will play a key role in advancing Army tactical network protection, enabling secure, reliable, and policy-compliant data transfer between mission systems operating in multi-domain environments.

Key Responsibilities

• Engineer, integrate, test, and validate Cross Domain Solutions (High-to-Low, Low-to-High, bi-directional) supporting tactical mission systems.
• Support secure architecture design, data flow engineering, and cybersecurity-compliant implementations.
• Develop and maintain system design documentation, interface documents, engineering change proposals, and assessments.
• Perform requirements analysis, system modeling, test planning, and verification/validation activities.
• Support DoW and Army Cross Domain authorization processes, including security control assessments, test documentation, POA&Ms, and interoperability assessments.
• Analyze cyber, network, and data-handling risks; recommend mitigations aligned with DoD RMF and Intelligence Community cross-domain security policies.
• Collaborate with Government engineers, program leads, cyber SMEs, and system integrators.
• Provide technical expertise during system fielding, integration events, lab-based experimentation, and operational assessments.
• Support configuration management, troubleshooting, incident response, and lifecycle sustainment of CDS technologies.

Required Qualifications

• Bachelor’s degree in Computer Science, Electrical Engineering, Cybersecurity, Information Systems, or related discipline; 3-5 years of applicable experience.
• Experience engineering or integrating Cross Domain Solutions, guard technologies, Multi-Level Security systems, and/or multi-domain security architectures.
• Familiarity with DoD Risk Management Framework (RMF), ICD 503, NIST 800-53, DoDI 8540.01, AR 25-2-1, and DoD/IC Cross Domain security policies.
• Hands‑on experience with at least one CDS technology (e.g., Radiant Mercury, High Speed Guard, TACDS, ISSE Guard, OWL XD, etc).
• Strong understanding of network protocols, enclave boundary security, data labeling, releasability enforcement, and secure data transport.
• Experience with Linux systems engineering and secure system configuration hardening.
• Secret clearance

Desired Qualifications

• Master’s degree in computer science, engineering, cybersecurity, or related field.
• Prior experience supporting C5ISR Center, Army tactical networks, or related mission partners.
• Experience with scripting, automation, or DevSecOps-based test workflows.
• Knowledge of tactical communications systems, enclave architectures, cloud/edge environments, or mission command/command post systems.
• Certifications: Security+, CISSP, CEH, CASP, or equivalent DoD 8570/8140 IAT/IASAE Level II/III.

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation’s most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$108,400 - 227,500 USD

CACI is anEqualOpportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any otherprotectedcharacteristic.