Posted 3 months ago
Cross Domain Solutions (CDS) Specialist
@ Querentia Inc.
Ottawa, Ontario
Overview
Querentia Inc. is hiring Intermediate and Senior Cross Domain Solutions (CDS) Specialists on a contract basis to design, deploy and support secure cross-domain environments for Government of Canada projects. The work covers CDS guards, data diodes, content disarm and reconstruction, Linux administration, ITSG-33 accreditation and secure data flows. An active Secret or Top Secret security clearance is mandatory.
Responsibilities:
- Design, deploy and maintain cross-domain solutions
- Support accreditation, documentation and ITSG-33 compliance
- Configure and manage CDS guards, data diodes and CDR
- Develop SIEM dashboards, alerts and monitoring
- Design secure data flows using Apache NiFi
Requirements summary:
- 5 to 9 years (Intermediate) or 10+ years (Senior) experience
- Hands-on experience with CDS technologies and CDR tools
- Strong Linux administration and TCP/IP networking skills
- Python, Bash or JavaScript scripting
- Government or highly regulated environment experience preferred
- Active Secret or Top Secret clearance mandatory
Tools & skills
Source and dates
Source type not verified · jsonld
- Employer posting date
- 2026-08-05
- First seen by our source
- 2026-10-26
- Source record updated
- 2026-11-07
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Mid level |
| Department | IT |
| Experience | 5+ years |
| Work setting | Office, Client sites |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Education | College diploma (preferred) |
| Security clearance | Secret |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Querentia Inc.
| Field | Value |
|---|---|
| Open jobs on Jobsy | 331 |
Role: Cross Domain Solutions (CDS) Specialist – Intermediate & Senior
Job Summary
We are seeking Intermediate (5–9 years) and Senior (10+ years) Cross Domain Solutions (CDS) Specialists to design, deploy, and support secure cross-domain environments for Government of Canada projects. The ideal candidate will have strong expertise in CDS technologies, secure networking, Linux administration, system accreditation, and secure data transfer solutions.
Key Responsibilities
•
Design, deploy, and maintain Cross Domain Solutions across networks with varying security classifications.
•
Support accreditation activities, documentation, testing, and compliance with ITSG-33 .
•
Configure and manage CDS Guards, Data Diodes, and Content Disarm & Reconstruction (CDR) solutions.
•
Develop and maintain SIEM dashboards, alerts, and security monitoring.
•
Design secure data flows using Apache NiFi .
•
Perform Linux server administration, security hardening, and troubleshooting.
•
Support TCP/IP networking, routing, firewalls, and develop automation scripts using Python, Bash, or JavaScript .
Required Skills & Experience
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Intermediate: 5–9 years | Senior: 10+ years of relevant experience.
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University degree, diploma, or equivalent IT experience.
•
Strong hands-on experience with:
•
Cross Domain Solutions (CDS)
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TCP/IP, routing, and firewalls
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CDR tools (Glasswall, Purifile)
•
CDS Guards (Everfox HSG/TGS)
•
Data Diodes (Blackline, Sphyrna, OWL, BAE)
•
Linux administration and security hardening
•
Apache NiFi
•
SIEM monitoring and reporting
•
Python, Bash, or JavaScript scripting
•
Experience supporting secure Government or highly regulated environments is highly preferred.
Mandatory: Active Secret or Top Secret Security Clearance .
Journal
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