Reference number: RF-17151
About CSE 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. This isn’t just an ideal, it’s crucial to our mission. 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).
Job summary We’re looking for people from a wide range of backgrounds, who enjoy working in an inclusive environment and value different perspectives.
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.
In the application form, you will be required to specify which role(s) you would like to be considered for:
Core networking
Telecommunications / Optical networking
User access networking
You will find more details about these roles in the “Experience” section below.
Salary To find out more about our salary scale, vacation allowances and benefits (health, dental and pension plans, etc.) visit the Compensation page on our website.
Area of selection Open to Canadian citizens.
Location Ottawa, Ontario. CSE has two accessible facilities. Flexible work arrangements, including telework for a portion of the work week, may be possible.




Conditions of employment 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.
Essential qualifications In order to be considered, your cover letter must clearly explain how you meet the following education and experience requirements.
Education You must have either one of the following:
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.
Note: The educational program must be recognized in Canada, and you must be able to provide proof of education credentials. Students graduating within the next twelve months are eligible to apply.
Experience 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). You must meet three or more experience requirements listed within the role(s) you’ll select:
Core networking Experience in the design, implementation, and support of enterprise routing or switching, or firewall environments
Experience with switching and routing principles and protocols such as OSPF, BGP, EIGRP,



VLAN, STP, VRF, VXLAN
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 with DWDM, CWDM, ROADM technologies, and optical amplifiers
Experience provisioning wavelengths and performing optical path engineering
Experience with MPLS and transport-layer security technologies (IPSec, MACsec)
Experience in the analysis of fiber characteristics, optical power levels, and dispersion
Experience with validating optical signal integrity and perform path validation
Experience in automation, with emphasis on physical and optical-layer expertise
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, QUICK, 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: BBB

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