We are looking for experienced Cross Domain Solutions Specialists to support secure data exchange between networks with varying security classifications.

The ideal candidate will have hands-on experience designing, deploying, configuring, and maintaining Cross Domain Solutions (CDS) in secure/classified environments.

Key requirements:

- 5–9 years of experience for Intermediate / 10+ years for Senior resources
- Solid hands-on Cross Domain Solutions (CDS) experience
- Experience working with networks of varying security classifications
- Experience with CDS Guards , such as Everfox HSG/TGS
- Experience deploying/configuring Data Diodes , such as Blackline, Sphyrna, OWL, or BAE
- Hands-on experience with Content Disarm & Reconstruction (CDR) / content sanitization tools such as Glasswall or Purifile
- Strong TCP/IP, routing, firewall, and network security experience
- Experience with Linux server administration and security hardening
- Experience with Apache NiFi and high-throughput dataflows
- Experience developing SIEM dashboards, alerts, and reports
- Experience with Python, Bash, or JavaScript scripting
- Experience supporting system accreditation , including documentation, testing, compliance, and ITSG-33

📌 Network Security Engineer (Ottawa)
🏢 Querentia
📍 Ottawa