Find work in Canada.

485,267 jobs across our Canadian network. How we count

Jobs in Canada

25+ jobs

Email me new jobs Save this search

Added 1 day ago
SM
RQ00816 – Security Specialist – Intermediate
S M Software Solutions Inc
Toronto, ON
- Full-time
We are seeking an experienced Security Specialist – Intermediate with strong hands-on expertise in Continuous Threat Exposure Management (CTEM), vulnerability management, DevSecOps,…
Added 1 day ago
SC
Machine Learning Specialist – Cybersecurity Products
StreamScan Cybersecurity
Montreal, QC
- Full-time
We are looking for a highly motivated Machine Learning Specialist to help design and develop advanced cybersecurity solutions powered by Artificial Intelligence and Machine Learning. The…
Added 1 day ago
SM
RQ00816 – Security Specialist – Intermediate
S M Software Solutions Inc
Toronto, ON
- Full-time
We are seeking an experienced Security Specialist – Intermediate with strong hands-on expertise in Continuous Threat Exposure Management (CTEM), vulnerability management, DevSecOps,…
Added 1 day ago
SM
RQ00816 – Security Specialist – Intermediate
S M Software Solutions Inc
Toronto, ON
- Full-time
We are seeking an experienced Security Specialist – Intermediate with strong hands-on expertise in Continuous Threat Exposure Management (CTEM), vulnerability management, DevSecOps,…
Added 1 day ago
SM
RQ00816 – Security Specialist – Intermediate
S M Software Solutions Inc
Toronto, ON
- Full-time
We are seeking an experienced Security Specialist – Intermediate with strong hands-on expertise in Continuous Threat Exposure Management (CTEM), vulnerability management, DevSecOps,…
Added 2 days ago
L3 SOC Analyst - Calgary
Integrity360
Calgary, AB
Integrity360 is a leading independent cybersecurity and PCI specialist operating across Europe, Africa, the Caribbean, and North America. The company has office locations in Ireland, the…
Added 2 days ago
C
Senior Platform Engineering Specialist
CANARIE
Ottawa, ON
- Full-time
The Position: Senior Platform Engineering Specialist
Added 3 days ago
S
Cyber Security Specialist
StafinGo
Toronto, ON · Greater Toronto Area, Canada
- $60 to $75 CAD / hour
- Contract
Collaborate across cybersecurity, IT operations, software development, DevOps, and cloud engineering functions.
Added 9 days ago
BS
Senior Cybersecurity Engineer
Blackline Safety
Calgary, AB
- Full-time
Improve detection engineering, incident-response playbooks, tabletop exercises, and post-incident controls.
Added 9 days ago
BS
Senior Cybersecurity Engineer
Blackline Safety
Remote, Canada
- Full-time
- Remote
Improve detection engineering, incident-response playbooks, tabletop exercises, and post-incident controls.
Added 10 days ago
Threat Operations & Detection Specialist
Dentons
Toronto, ON · Ottawa, ON · Montreal, QC · Vancouver, BC · Edmonton, AB · Calgary, AB
Dentons Canada LLP is currently recruiting for a Threat Operations & Detection Specialist who will be responsible for continuously improving threat detection, response readiness, and cyber…
Added 10 days ago
C
Senior Specialist Cybersecurity Operations Center-CA
CN
Montreal, QC
- Full-time
Review and maintain Engineering standards and specification documents
Added 10 days ago
IT Threat Operations & Detection Specialist
Dentons
Toronto, ON · Ottawa, ON · Montreal, QC · Vancouver, BC · Edmonton, AB · Calgary, AB
Dentons Canada LLP is currently recruiting for a Threat Operations & Detection Specialist who will be responsible for continuously improving threat detection, response readiness, and cyber…
Added 10 days ago
G&
Industrial Sales Specialist
Groom & Associés / Associates
Markham, ON
- Full-time
…portfolio. With a deep understanding of the U.S. DoD technical and cybersecurity requirements, our client supports the military, aviation, and other critical…
Added 12 days ago
T
Cyber Security Specialist
Thales
Fredericton, NB
- Full-time
Thales has a vacancy for a Cyber Security Specialist (Detection Engineer) is responsible for the prevention of Cybersecurity incidents by real-time monitoring, detection, and analysis of…
Added 16 days ago
Principal Cybersecurity Specialist, Incident Response
Questrade Financial Group
Toronto, ON
We’re looking for our next Principal Cybersecurity Specialist, Incident Response. Could It Be You?
Added 18 days ago
D
Technical Success Manager- French Speaking
Darktrace
ON · NB · NS · CAN - Ontario (Home Office)
- Full-time
Darktrace is a global leader in AI-driven cybersecurity, helping organizations stay ahead of evolving threats every day.
Added 19 days ago
C
Cyber Implementation Specialist-EN
CAE
Ottawa, ON
- Full-time
CAE Defence & Security Canada is seeking a Cyber Implementation Specialist to support the design, integration, implementation, and sustainment of cybersecurity solutions across Defence &…
Added 19 days ago
C
Cyber Implementation Specialist
CAE
Ottawa, ON
- Full-time
CAE Defence & Security Canada is seeking a Cyber Implementation Specialist to support the design, integration, implementation, and sustainment of cybersecurity solutions across Defence &…
Added 20 days ago
OS
DLP Policy & Controls Specialist
Open Systems Technologies
Montreal, QC
- Contract
We are seeking an experienced **Data Loss Prevention (DLP) Policy & Controls Specialist** to support the design, implementation, tuning, and ongoing management of enterprise DLP policies…
Added 23 days ago
D
Technical Success Manager- French Speaking
Darktrace
NB · Brunswick, NB
- Full-time
Darktrace is a global leader in AI-driven cybersecurity, helping organizations stay ahead of evolving threats every day.
Added 23 days ago
AS
DLP Policy & Controls Specialist
Axelon Services Corporation
Montreal, QC
- $58.62 USD / hour
- Other
Tune DLP policies to improve detection accuracy and reduce false positives and false negatives.
Added 23 days ago
F
Cybersecurity Analyst / Analyste en cybersécurité
FENCECORE
Montreal, QC
- Full-time
We’re looking for a Cybersecurity Analyst to run day-to-day security operations for our clients. You are the first line of investigation and response across endpoint, identity, email, and…
Added 23 days ago
RE
DLP Policy & Controls Specialist
Randstad Enterprise
Montreal, QC
- Full-time
We are seeking an experienced **Data Loss Prevention (DLP) Policy & Controls Specialist** to support the design, implementation, tuning, and ongoing management of enterprise DLP policies…
Added 24 days ago
IF
Senior Product Owner - Security
Intact FC
Montreal, QC · Laval, QC
- Full-time
As part of the Cyberdefence - Detection Engineering team, you will be the Detection Engineering Specialist who acts as a Cyberdefence Product Owner.

Senior Specialist Cybersecurity Operations Center-CA

Montreal, QC, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Nov 13, 2026
Posting language: English
Posted: Oct 14, 2026

Original job description

Job Summary

The incumbent is responsible for providing technical leadership to the Network Security Management team. The role improves and maintains the cyber security posture of CN's networks enabling business functionality across all systems and environments by applying best practices and security solutions. Acting as a Subject Matter Expert (SME), the incumbent oversees development and integration of new network security functionality into CN's networks and collaborates with various relevant teams. The role is accountable for assessing new projects and recommending solutions to surfacing issues. The position provides mentoring and training and acts as a third-level support.

Main Responsibilities

Operation Excellence

Lead and execute installations, upgrades, configurations and maintenance of the network security infrastructure
Perform a quality review of infrastructure changes and implementations
Provide third-level support including detailed threat analysis of log data from security devices
Lead life cycle project initiatives (analyze, test and deploy)
Lead problem investigations and follow-up on resolutions
Perform preventive maintenance tasks
Monitor and maintain system availability and performance
Identify Key Performance Indicators (KPIs) related to the capacity, performance of the service and network security
Oversee gatherings of baseline data and ensure that it is assessed against current data for improvements
Create and maintain operational documentation such as run books, diagrams and system layout
Troubleshoot and correct defects with vendors
Apply and ensure compliance with all appropriate CN Technology standards (Security, Architecture, Project Delivery Methodology, Sarbanes-Oxley Act (SOX))
Respond to investigations and queries of InfoSec Team and Auditors related to breaches
Assist with root cause analyses for events and incidents when underlying issues are unknown

Delivery

Participate in project analysis and planning phase to estimate effort and build activity plan
Collaborate with project team to deliver required infrastructure
Participate in project transition and support strategies (T2C)
Lead network security assigned strategies and projects
Review and maintain Engineering standards and specification documents
Create and maintain operational documentation (run books, how-to, diagrams, system layouts, standard operating procedure (SOPs))
Assist on technical proposals, specifications, requirements and design documents
Coordinate with internal and external stakeholders and vendors as necessary

Practice Evolution

Engage with team to define, design, and implement network security solutions to enhance cyber security posture
Participate in evaluation and recommendation of network security tools and technologies for existing and future business needs
Collaborate with team members to develop and implement process improvements
Communicate complex designs and information to peers
Provide training to multiple teams
Recognize and act on Operations and Business risks and recommend solutions

Working Conditions

The role has standard working conditions in an office environment with a regular workweek from Monday to Friday and is eligible to participate in CN's hybrid work model. The role involves managing priorities and delivering work within established timelines, with support from the team to ensure sustainable and effective workload management. The position requires minimal travel (5%) to workshops and training.

Experience

Relevant Experience

Minimum 10 years of overall work experience
Minimum 5 years of demonstrated experience in providing hands-on technical expertise with network security solutions deployed in large corporate environments
Advanced experience with Next Generation Firewall (NGFW) technologies and capabilities
Experience with Wide-Area Networks (WAN) technologies
Candidates with an equivalent combination of education, training, and experience will be considered

Education/Certification/Designation

Bachelor's Degree in Computer Science, Information Systems or equivalent
Certification in Certified Information Systems Security Professional (CISSP), Cisco Certified Network Professional (CCNP) Security, Cisco Certified Internetwork Expert (CCIE) Security, Certified Network Security Administrator (PCNSA), Certified Network Security Engineer (PCNSE) or other security or network security related certification*
Candidates with equivalent practical experience, education, or training will be considered
Any requirement marked with (*) will be considered an asset (not mandatory)

Competencies

We Care About Each Other
We Strive for Excellence
We Succeed Together
We Lead Responsibly
Compliance
Build trust
Reading the environment
Political acumen
AI Literacy and data orientation

Technical Skills/Knowledge

Advanced understanding of core security technologies such as NGFW, Intrusion Detection System (IDS), Intrusion Prevention System (IPS), Distributed Denial-of-Service (DDoS/DoS), Virtual Private Network (VPN), Network Access Control (NAC), Advanced Thread Prevention, Uniform Resource Locator (URL) filtering, Domain Name System (DNS) Security and Remote Access
Deep understanding of common network and application stack protocols such as Transmission Control Protocol (TCP), Internet Protocol (IP), Internet Control Message Protocol (ICMP), Transport Layer Security (TLS), Hypertext Transfer Protocol Secure (HTTP/HTTPS) and Internet Protocol Security (IPSEC)
Ability to analyze assembled network data to perform incident response and identify potential security issues
Knowledge of policies, procedures, and protocols in use by the CN
Knowledge in analyzing security risks and developing response procedures
Strong working knowledge and troubleshooting of Border Getaway Protocol (BGP), Open Shortest Path First (OSPF) and Enhanced Interior Gateway Routing Protocol (EIGRP) routing protocols
In-depth working knowledge and troubleshooting VPN technologies
Advanced working knowledge and troubleshooting of authentication mechanisms
Strong understanding of end-point platform such as Windows or Linux
Knowledge of scripting languages

Apply About employer

More about this job

Responsibilities

Lead the operation, maintenance, improvement, and lifecycle delivery of network security infrastructure, including installations, upgrades, threat analysis, incident investigations, and third-level support. Guide security projects and standards, collaborate with internal teams and vendors, assess risks and technologies, and provide technical mentoring and training.

Requirements

Requires at least 10 years of overall work experience, including at least 5 years of hands-on network security expertise in large corporate environments, with advanced NGFW and WAN experience. A bachelor's degree in computer science, information systems, or an equivalent field is specified; security or network certifications are listed, with starred certifications considered an asset, and equivalent practical experience may be considered.

Skills

Network Security
Next-Generation Firewalls
Wide-Area Networks
Intrusion Detection and Prevention
VPN Technologies
Network Access Control
DDoS Protection
Network Protocols
Incident Response
Security Risk Analysis
BGP, OSPF, and EIGRP
Authentication Mechanisms
Windows and Linux
Scripting
Technical Leadership
Troubleshooting

Visa sponsorship

Not detected in the job text

Keywords

Network Security
Cybersecurity Operations
Next-Generation Firewall
Wide-Area Network
Intrusion Detection System
Intrusion Prevention System
DDoS Protection
Virtual Private Network
Network Access Control
URL Filtering
DNS Security
TCP/IP
ICMP
TLS
HTTP/HTTPS
IPsec
BGP
OSPF
EIGRP
Incident Response
Threat Analysis
Root Cause Analysis
CISSP
CCNP Security
CCIE Security
PCNSA
PCNSE
Sarbanes-Oxley Act
Project Delivery Methodology
Windows

Report this job