Cross Domain Systems Engineer III
Listed on 2026-08-30
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IT/Tech
Cybersecurity, Systems Engineer
Cross Domain Solutions Engineer (CDS) Cybersecurity Engineering Specialist III
- Enterprise Cross-Domain System
Location:
St. Louis, MO - on site Time Type:
Full time, Exempt Clearance Required to Start:
Active TS/SCI (U.S. citizenship required) Additional Requirement:
Must be able to obtain and maintain a Government polygraph (post-hire requirement) Travel:
Less than 10%, local Salary Range: $101,000 – $111,000 Moving data between security domains, safely, at enterprise scale.
RISA is hiring a Cross Domain Engineer to provision customer dataflow in an Enterprise Cross-Domain System for an Intelligence Community customer. CDS is a small field and the work is genuinely hard: you own the design conversation with stakeholders, the implementation, and the health of the system once it is running. You will talk to the owner here, not a recruiting queue.
WhatYou Will Do
- Collect requirements from stakeholders and determine the best implementation approach.
- Schedule and run Technical Exchange Meetings to whiteboard design and implementation detail.
- Coordinate implementation approach and timeline with technical and project management staff.
- Identify and remediate implementation conflicts across CDS technologies enterprise-wide.
- Respond to and resolve service outages, technical queries, and system issues.
- Run system checks across processes, services, network, and storage to assess overall health.
- Write the technical documentation and deliver the briefings that go with the work.
- U.S. citizenship and an active TS/SCI.
- Ability to successfully obtain and maintain a Government polygraph after hire.
- Education and experience, per the contract labor category criteria:
Bachelor's degree in a field applicable to the position plus 6 years of relevant experience. Equivalents accepted
- Master's plus 4, Associate's plus 8, or High School diploma/GED plus 10. - DoD IAT Level II certification.
- Linux, with a working understanding of operating system security practices.
- TCP/IP networking and network security concepts.
- Hands-on with Cross Domain Solutions and operational support of CDS technologies on the NCDSMO-approved products list.
Rolston Information Systems Assurance (RISA) is a Service-Disabled Veteran-Owned Small Business that has supported federal defense and intelligence cybersecurity missions for more than seventeen years. We are small on purpose: direct access to leadership, a real say in how the work gets done, and none of the layers that slow large primes down.
Benefits- Medical, dental, and vision insurance
- 401(k) and Roth
- Paid Time Off
- 11 paid Federal Holidays
RISA is an Equal Opportunity Employer.
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