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Added 11 mins ago
E
Wellness Manager
E4C
AB · Edmonton, AB
- Full-time
In collaboration with the Site Manager, you will help ensure the program meets both resident needs and organizational requirements while mentoring a team of Wellness Coaches. You will lead…
Added 11 mins ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Under the direction of the designated IT Manager, the Application and Integration Technical Analyst is a technical lead responsible for system architecture, data strategy, and integration…
Added 11 mins ago
WI
HSE Site Representative
WSP in Canada
Winnipeg, MB
- Full-time
…as part of the WSP field team and reporting to the Project Manager, you’ll provide hands-on health and safety support to crews while helping ensure work is completed in accordance with…
Added 11 mins ago
UO
Enrolment Services Advisor (Recurring Part-time)
University of Calgary
Calgary, AB
- Part-time
As a member of the Enrolment Services team, this position reports to the Manager, Enrolment Services Operations. Peak operational periods, including August, September, and January, may…
Added 11 mins ago
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IT Transformation Project Manager
Mehbooba
ON · Ontario, Canada
- Contract
The IT Transformation Project Manager is responsible for planning, managing, and delivering technology-driven transformation initiatives aligned with business objectives. The role involves…
Added 11 mins ago
TP
Manager, Operational Modernization
Toronto Pearson International Airport
Toronto, ON
- Full-time
As a Manager, Operational Modernization, you will:
Added 11 mins ago
RC
Recreation Aide
Retirement Concepts
Courtenay, BC
- $27.92 CAD / hour
- Temporary
The Recreation Aide reports to the Therapeutic Recreation Manager/ Recreation Manager or designate. This role assists in planning, implementing and evaluating activity programs to meet the…
Added 11 mins ago
CG
People Business Partner
Credit Genie
Toronto, ON
- Full-time
…automation to support analysis, scenario modeling, and the implementation of approved…
Added 11 mins ago
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Senior Manager, Asset Protection & Safety, Global Fulfillment, Western Distribution Centers
lululemon
BC · British Columbia, Canada
- Full-time
Within Global Fulfillment AP&S, Distribution Centers, the Senior Manager, Asset Protection & Safety provides strategic and operational leadership for safety, security, and asset protection…
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Compressor Technical Support Specialist
Atlas Copco
Calgary, AB
- Full-time
This position reports to the Technical Support and Administration Manager.
Added 11 mins ago
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Enrolment Services Advisor
University of Calgary
Calgary, AB
- Full-time
As a member of the Enrolment Services team, this position reports to the Manager, Enrolment Services Operations. Hours of work for this position are 35 hours per week, Monday-Friday. Peak…
Added 11 mins ago
SC
Exercise Specialist - Contract
South Calgary Primary Care Network
Calgary, AB
- Contract
Collaborate with team members, referring primary care providers, program manager, and other allied health professionals, as required, to support a multi-disciplinary approach to patient…
Added 11 mins ago
AC
Compressor Technical Support Specialist
Atlas Copco
AB · Edmonton, AB
- Full-time
This position reports to the Technical Support and Administration Manager.
Added 11 mins ago
RC
Recreation Aide
Retirement Concepts
Chilliwack, BC
- Full-time
The Recreation Aide reports to the Therapeutic Recreation Manager/ Recreation Manager or designate. This role assists in planning, implementing and evaluating activity programs to meet the…
Added 11 mins ago
MT
Terminal Manager
Midland Transport
Truro, NS
- Full-time
Midland Transport is seeking a results-driven Terminal Manager to lead the day-to-day operations for our Truro Terminal. This is a key leadership role responsible for ensuring the safe,…
Added 11 mins ago
PH
Office Manager
ParaMed Home Health Care
Thunder Bay, ON
- Full-time
Added 11 mins ago
RC
General Manager
Retirement Concepts
Surrey, BC
- $105,000 to $120,000 CAD / year
- Full-time
The General Manager (GM) is a key leader in the Community and is responsible for all elements of our Community Engagement Strategy and ensuring optimal quality of care and customer service…
Added 11 mins ago
RC
Recreation Aide
Retirement Concepts
Surrey, BC
- Temporary
The Recreation Aide reports to the Therapeutic Recreation Manager/ Recreation Manager or designate. This role assists in planning, implementing and evaluating activity programs to meet the…
Added 11 mins ago
RC
Recreation Aide
Retirement Concepts
Kamloops, BC
- $27.92 to $31.64 CAD / hour
- Temporary
The Recreation Aide reports to the Therapeutic Recreation Manager/ Recreation Manager or designate. This role assists in planning, implementing and evaluating activity programs to meet the…
Added 11 mins ago
O
National Accounts Director
OPENLANE
Brampton, ON
- $100,000 to $125,000 CAD / year
- Full-time
A National Account Director who will serve as the primary account relationship manager for commercial sellers. The core focus of this role is (1) to retain our high-value client base to…
Added 11 mins ago
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Registered Nurse, Transition Line - Cardiac Stepdown - Burnaby Hospital
Fraser Health Authority
Burnaby, BC
- $41.42 to $59.52 CAD / hour
- Full-time
Added 11 mins ago
RC
Recreation Aide
Retirement Concepts
White Rock, BC
- $31.64 CAD / hour
- Temporary
The Recreation Aide reports to the Therapeutic Recreation Manager/ Recreation Manager or designate. This role assists in planning, implementing and evaluating activity programs to meet the…
Added 11 mins ago
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Commissioning Engineer
GagaMuller
Regina, SK
- Full-time
…development in Regina, Canada. Working closely with the Commissioning Manager, Commissioning Authority (CxA), General Contractor, MEP contractors, OFCI vendors, Operations teams, and PMC…
Added 11 mins ago
HT
Manager, Internal Controls
Husky Technologies
Bolton, ON
- Full-time
Working with Internal Audit and the global Finance and Operations teams, the Manager, Internal Controls will play a critical role in Husky’s global financial reporting. This includes the…
Added 11 mins ago
HT
IT Internal Auditor
Husky Technologies
Bolton, ON
- Full-time
…You will be part of a global team and report to the Senior Manager; IT Audit located in Bolton. The Senior Manager, IT Audit reports to the VP, Internal Audit, who reports to the Audit…

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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