---
title: Cross Domain Systems Engineer III at Risadirect
description: Risadirect is hiring for the Cross Domain Systems Engineer III role in Saint Louis,
  MO. See the full description and apply.
type: job
url: https://www.foundrole.com/jobs/cross-domain-systems-engineer-iii-at-risadirect-01a0ea0f-9f58-72fe-ac5d-7095595863a5
date: 2026-09-28T22:15:20Z
og_description: Join Risadirect as Cross Domain Systems Engineer III in Saint Louis, MO. Pays
  $101K–$111K per year. Full-time, on-site role.
og_image: https://www.foundrole.com/og/7ntikj.png
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---

| | |
|---|---|
| **Company** | risadirect.com |
| **Location** | Saint Louis, MO |
| **Salary** | $101K/yr - $111K/yr |
| **Type** | Full Time |
| **Posted** | Sep 28, 2026 |
## Description

**Cross Domain Solutions Engineer (CDS)**

**Cyber Security 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.

**What You 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.

**What You'll Bring**

- 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.

**Nice to Have**

- Hands-on with Cross Domain Solutions and operational support of CDS technologies on the NCDSMO-approved products list.

**About RISA**

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; and 11 paid Federal Holidays.

*RISA is an Equal Opportunity Employer.*

- Upon receiving an offer of employment, all applicants will be required to do a background check, including a criminal record check and employment/education verification.
## Skills

- Cross Domain Solutions
- Project Management
- Insightful S-plus
- DoD IAT Level II Certification
- Deployment Strategy
- Technical Documentation
- Polygraphy
- Linux
- Tibco S-plus
- Transmission Control Protocol (Tcp)
- TCP/IP
- Top Secret-Sensitive Compartmented Information (Ts/sci Clearance)
- Network Security
## Benefits

- Health Insurance
- Dental Insurance
- Vision Insurance
- Paid Time Off (Pto)
- 401(k) Plans

## How to Apply

[Apply for this position](https://www.foundrole.com/jobs/cross-domain-systems-engineer-iii-at-risadirect-01a0ea0f-9f58-72fe-ac5d-7095595863a5?utm_source=ai_markdown)

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