The Communications Security Establishment (CSE) is Canada’s agency responsible for foreign signals intelligence, cyber operations and cyber security. Learn more about our mission, and what it means to work in a security and intelligence field. CSE is committed to fostering a culture of equity, diversity and inclusion.

Find out about our workplace culture, including our diversity and inclusion initiatives. Become part of our team and you’ll understand why CSE is the most important organization you’ve never heard of (YouTube). As part of our Network Operational Support team, you will collaborate with your colleagues to address complex network and telecommunications challenges in Ottawa, in Canada, and in international locations.

You will design, implement, support, and manage CSE’s enterprise network and telecommunications services, including firewalls, local and wide area networks, optical infrastructure, cloud, data center, wireless and software defined networking. You will also help design, implement and integrate new solutions and capabilities into CSE’s existing infrastructure. Core networking # Telecommunications / Optical networking # User access networking To find out more about our salary scale, vacation allowances and perks (health, dental and pension plans, etc.) visit the Compensation page on our website.

Open to Canadian citizens. CSE has two accessible facilities. Flexible work arrangements, including telework for a portion of the work week, may be possible. A valid Enhanced Top Secret (ETS) security clearance is a condition of employment that must be met before an offer can be made.

More information about our hiring and security processes can be found on our website. A university degree in a field related to the position, such as (but not limited to) Computer Science, Computer/Electrical/Software Engineering, Network Computing, or Network Telecommunications; or a college diploma in a field related to the position.



An acceptable combination of education (professional certification) in a field related to the position (as above), and a minimum 2 years of networking experience.

Students graduating within the next twelve months are eligible to apply. In the application form, you will be required to indicate which role(s) you would like to be considered for (Core Networking, Telecommunications / Optical Networking, User Access Networking). Core networking Experience in the design, implementation, and support of enterprise routing or switching, or firewall environments Experience in network security technologies including IPSec, MACsec, VPN, ACL, and NAT Experience managing core network services such as DHCP, DNS, IP address management, segmentation, and access control Experience with the administration of firewalls and enforcement of network security and access control policies Experience with load balancers and enterprise network virtualization concepts Experience with network automation or scripting tools Telecommunications / Optical networking Experience working with optical transport networks and fiber infrastructure in service provider or large enterprise environments Experience provisioning wavelengths and performing optical path engineering Experience in the analysis of fiber characteristics, optical power levels, and dispersion User access networking Experience in the design and operation of controller-based and software-defined networks Experience with SDN concepts, intent-based networking, overlays (VXLAN), and API-driven networking Experience with network automation using Python, Ansible, PowerShell, or similar tools Experience integrating security protocols with network access solutions (802.1X, EAP, FAST, EAP-TLS) Experience in wireless networking, WLAN deployment, and troubleshooting Knowledge of 802.11 standards and enterprise wireless security (WPA3, 802.1X, RADIUS) Experience in the support of automated, scalable, and policy-based network environments Official language requirements English essential or bilingual imperative:

📌 Telecommunications or Network Administrators and Analysts (Various levels) (Ottawa)
🏢 Communications Security Establishment Canada
📍 Ottawa