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Added 6 mins ago
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Director of Engineering
Pivot + Edge
Ottawa, ON
- Full-time
You will lead and develop engineering managers and technical professionals, foster a high-performing and inclusive culture, and collaborate closely with Product Management, Project…
Added 6 mins ago
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Senior Data Scientist - Fraud Detection
DataVisor
Calgary, AB
- $120,000 to $150,000 CAD / year
- Full-time
Our award-winning software platform is powered by a team of world-class experts in big data, machine learning, security, and scalable infrastructure. Our culture is open, positive,…
Added 6 mins ago
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Lead Middleware Platform Engineer (contract)
Capgemini
Montreal, QC
- Contract
We are looking for a Lead Middleware Platform Engineer to lead the design, implementation, automation, and operationalization of a next-generation data and RDF platform for a global…
Added 6 mins ago
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Network Architect
Experis Canada
Toronto, ON
- $90 to $100 CAD / hour
- Contract
Lead architecture and roadmap development for two major initiatives: One Network modernization and provincial medical imaging cloud transformation.
Added 6 mins ago
YU
Systems Administrator
Yorkville University
Toronto, ON
- Full-time
Reporting to the Director IT Security and Infrastructure we are hiring a Systems Administrator to join our IT team at Yorkville University. As our new Systems Administrator, you will be…
Added 6 mins ago
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Director of Engineering
Frequentis
Ottawa, ON
- Full-time
You will lead and develop engineering managers and technical professionals, foster a high-performing and inclusive culture, and collaborate closely with Product Management, Project…
Added 6 mins ago
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Director Enterprise Applications, Data
TEEMA
Vancouver, BC
- $160,000 to $215,000 CAD / year
- Full-time
You’ll build and lead the firm’s enterprise application, data and integration capabilities. A key part of the mandate is transforming how the development team works through AI-assisted…
Added 6 mins ago
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RQ11740 – DevOps/Cloud Engineer – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior DevOps/Cloud Engineer with extensive experience in Microsoft Azure, CI/CD pipelines, deployment automation, infrastructure as code, cloud operations, and enterprise…
Added 21 mins ago
MS
Lead Middleware Platform
Millennium Software and Staffing Inc
Montreal, QC
- Contract
We are looking for a Lead Middleware Platform Architect to lead the design, implementation, automation, and operationalization of a next-generation data and RDF platform for a global…
Added 21 mins ago
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Sr DevOps Engg - AWS
emergiTEL
Toronto, ON · Etobicoke, ON
- $150,000 to $170,000 CAD / year
- Full-time
…experience, and proven leadership capability. This role owns cloud infrastructure strategy, CI/CD systems, security posture, observability, and infrastructure governance across production…
Added 21 mins ago
AI
Full Stack Developer
Alberta iGaming Corporation (AiGC)
AB · Edmonton, AB
- Full-time
…development, database integration, system connectivity, and cloud infrastructure. You will also establish automated deployment processes, strengthen application monitoring and support…
Added 21 mins ago
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Gestionnaire des opérations | Operations Manager
Bloom | Digital Marketing Agency
Montreal, QC
- Full-time
Added 36 mins ago
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Gestionnaire des opérations | Operations Manager
Bloom
Montreal, QC
- Full-time
Added 36 mins ago
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Director, IT Service Delivery, Talent and Culture, Treasury and Banking Services
iA Financial Group
Montreal, QC · Quebec, QC
- Full-time
Advise internal partners on the selection, acquisition and integration of technology solutions, including software packages, shared and reusable services, and cloud solutions.
Added 36 mins ago
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AI/ML Compliance Lead
Roche
Mississauga, ON · Canada Pharma Campus
- Full-time
We are seeking an experienced AI/ML & Digital Quality Lead to provide Quality Assurance oversight and guidance while designing and implementing cutting-edge AI/ML Digital solutions in a GMP…
Added 36 mins ago
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Lead Cloud Software Developer - (AWS / AI / Real Time Payment Systems)
BMO
Toronto, ON · BMOPLACE
- Full-time
We are seeking an experienced Lead Cloud Software Developer to design, build, and support secure, scalable, highly available, and resilient real-time payment systems. The ideal candidate…
Added 50 mins ago
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SOFTWARE ENGINEERING SPECIALIST - Technical Leader
BDC
Montreal, QC
- Full-time
…various key BDC processes across its different business sectors (Security, lending processes, CRM,…
Added 50 mins ago
IC
Cloud Operations, Senior Specialist
Interac Corp.
Toronto, ON · Interac Corp. Head Office
- Full-time
…both build and run functions, partnering with Architecture, Security, Cloud Platforms, DevOps, Risk, and Product Teams - influencing outcomes in repositories and teams you do not…
Added 50 mins ago
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Senior Lead IT Security Architect
Irving Oil
Saint John, NB
- Full-time
As a Senior Lead IT Security Architect, you will translate business strategy into secure, resilient, and scalable technology architecture that protects the organization’s critical…
Added 50 mins ago
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Senior .NET / Full Stack Developer
XTM International
Remote, Canada
- Full-time
- Remote
…building modern, scalable software at the intersection of AI, cloud, and business…
Added 50 mins ago
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Senior Data Scientist - Fraud Detection
DataVisor
Toronto, ON
- $120,000 to $150,000 CAD / year
- Full-time
Our award-winning software platform is powered by a team of world-class experts in big data, machine learning, security, and scalable infrastructure. Our culture is open, positive,…
Added 51 mins ago
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Data Engineer
V2Soft
Windsor, ON
- Contract
…complex business challenges. Our services span AI, IT staffing, cloud computing, engineering, mobility, testing, and more. Certified with CMMI Level 3 and ISO standards, V2Soft is committed…
Added 51 mins ago
X
Senior .NET / Full Stack Developer
XTM
Montreal, QC
- Full-time
…building modern, scalable software at the intersection of AI, cloud, and business…
Added 51 mins ago
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202610-127399 AI/ML Compliance Lead
Roche
Mississauga, ON
- Full-time
We are seeking an experienced AI/ML & Digital Quality Lead to provide Quality Assurance oversight and guidance while designing and implementing cutting-edge AI/ML Digital solutions in a GMP…
Added 51 mins ago
ZS
ServiceNow Architect
Zodiac Solutions, Inc
Toronto, ON
- Full-time
5. Experience integrating ServiceNow with enterprise monitoring, observability, cloud, network, infrastructure, application performance, and security platforms.

Randstad Digital

Senior Network Security Engineer

Mississauga, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 26, 2026
Experience: Experience: 8+ years of enterprise networking, firewall administration, and infrastructure delivery experience.
Posting language: English
Posted: Oct 27, 2026

Original job description

Senior Network Security Engineer, Network Data

Position Type: 6-Month Contract (Strong Renewal Potential)

Number of openings:1,

Location: Mississauga, ON (Hybrid: 2–3 days onsite per week

Must be eligible to work in Canada

Clearance: Must be eligible for Government of Canada Protected B clearance (requires living in Canada for approximately the last 5 years)

Roles and responsibilities

We are seeking a versatile Senior Network Security Engineer, Network Data to support critical enterprise infrastructure initiatives, centered on an active, large-scale data centre migration. In this role, you will play a hands-on technical lead role translating and migrating hundreds of firewall configurations from legacy platforms to next-generation appliances, while supporting core enterprise LAN/WAN operations.

The ideal engineer thrives across the entire network stack, is comfortable wearing multiple hats, and brings proven experience executing data center migrations with automation.

Key Responsibilities

Data Centre & Firewall Migration: Lead the translation, validation, and deployment of configurations migrating approximately 500 firewalls from Cisco to Fortinet.
Traffic Management & Security Implementation: Build, maintain, and optimize F5 BIG-IP traffic management solutions, including custom iRule programming.
Network Automation: Develop and execute Ansible playbooks and Python scripts to streamline configuration deployments, testing, and operational tasks.
Operations & Tier 2/3 Support: Provide senior-level escalation support for enterprise routing, switching, and firewall incidents; isolate complex Layer 1–7 issues.
Security & Change Execution: Implement approved security directives (firewall rules, IP/subnet filtering, VPN policies) and execute planned changes during scheduled maintenance windows.
Documentation & Standards: Maintain precise network topologies, operational runbooks, and migration mapping records.

Required Technical Competencies

Fortinet / FortiGate (Must-Have): Deep, hands-on engineering, configuration, policy mapping, and operational experience.
Cisco Firewalls & Enterprise Networking: Proven track record managing Cisco firewall appliances in a migration context, alongside solid routing and switching expertise (OSPF, BGP, LAN/WAN).
F5 BIG-IP: Strong, practical experience with Local Traffic Manager (LTM) and hands-on iRule development.
Automation & Scripting: Demonstrated proficiency writing and running Ansible playbooks; working ability to read and maintain Python scripts.
Data Centre Migration Track Record: Prior experience actively planning and executing data centre migrations in an enterprise environment.

Qualifications & Working Conditions

Experience: 8+ years of enterprise networking, firewall administration, and infrastructure delivery experience.
Versatility: Comfortable tackling issues across the full technology stack with minimal ramp-up time.
Availability: Open to occasional evening/weekend maintenance windows for project cutovers.
Certifications (Asset): CCNP, CCIE, NSE 4+, or F5-CTS.
Cloud Knowledge (Asset): Familiarity with hybrid connectivity involving Azure or AWS environments.

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More about this job

Responsibilities

Lead the migration of approximately 500 firewall configurations from Cisco to Fortinet, and build and optimize F5 BIG-IP traffic management solutions. Automate deployments and testing with Ansible and Python, provide senior escalation support for network incidents, implement approved security changes, and maintain network documentation.

Requirements

Requires 8+ years of enterprise networking, firewall administration, and infrastructure delivery experience, including hands-on Fortinet and Cisco firewall expertise, F5 BIG-IP LTM and iRule development, and data centre migration experience. Candidates should be proficient with Ansible, able to maintain Python scripts, have routing and switching knowledge, and be eligible to work in Canada and obtain Protected B clearance.

Skills

Fortinet FortiGate
Cisco Firewalls
Firewall Migration
F5 BIG-IP LTM
iRule Development
Ansible
Python
Network Automation
Data Centre Migration
Routing and Switching
OSPF
BGP
LAN/WAN
Network Security
Tier 2/3 Support
Azure and AWS Connectivity

Visa sponsorship

Not detected in the job text

Keywords

Fortinet
FortiGate
Cisco Firewalls
F5 BIG-IP
Local Traffic Manager
iRules
Ansible
Python
Data Centre Migration
Firewall Configuration
Firewall Policy Mapping
Network Automation
Enterprise Networking
Routing
Switching
OSPF
BGP
LAN/WAN
Layer 1–7 Troubleshooting
VPN Policies
IP/Subnet Filtering
Network Security
Configuration Deployment
Maintenance Windows
CCNP
CCIE
NSE 4+
F5-CTS
Azure
AWS

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