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Added 10 mins ago
GT
Technical Manager
GeoSpectrum Technologies, Inc
Dartmouth, NS
- Full-time
…design, development, and implementation of engineering technical solutions. The TM provides senior level technical expertise to the project, engineering and technical teams, ensures product…
Added 10 mins ago
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Ingénieur Manufacturier Senior – Lignes de Moteur / Senior Manufacturing Engineer – Engine Lines
Rolls-Royce
Montreal, QC
- Full-time
An exciting opportunity has arisen for a Senior Manufacturing Engineer – Engine Lines within Rolls‑Royce Canada. Working in High Performance Culture environment, the main accountability of…
Added 10 mins ago
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Senior Full Stack Engineer - Java / AI
Rose International
Mississauga, ON
- Full-time
Join a dynamic Front Office Technology team as a Senior Software Engineer (Java / AI), helping build the future of financial technology.
Added 24 mins ago
Mechanical Designer
Hatch
Sudbury, ON
…bettering the industries in which we operate. With practical solutions that are safe, innovative and sustainable, we think globally while acting…
Added 24 mins ago
PE
Senior Distribution Engineer
Phasor Engineering Inc
Remote, Canada
- $120,000 to $150,000 CAD / year
- Full-time
- Remote
We're looking for an experienced Senior Distribution Engineer to join our engineering team.
Added 24 mins ago
A
Senior Geotechnical Field Engineer
Arcadis
Vancouver, BC
- Full-time
As part of our continued growth in Western Canada, Arcadis is seeking a Senior Geotechnical Field Engineer to join our expanding team in Vancouver. This role is suited for a technically…
Added 24 mins ago
Senior Instrumentation & Controls Engineer
ExxonMobil
Edmonton, AB
We are seeking an experienced Senior Instrumentation & Controls (I&C) Engineer to join our Engineering team. The successful candidate will bring extensive experience in process control…
Added 40 mins ago
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Satellite Electrical Systems Engineer
Scalian
Montreal, QC
- Full-time
We are looking for a Satellite Electrical Systems Engineer to collaborate on one of our projects in the space sector.
Added 40 mins ago
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Production Support Engineer (contract)
Capgemini
Montreal, QC
- Contract
Seeking a Senior Oracle Financials EBS R12 Support Engineer to support and maintain Oracle Financials applications, customizations, integrations, and financial data flows. The ideal…
Added 40 mins ago
SM
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 40 mins ago
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Senior Advisor Analytics
Manpower
Calgary, AB
- Contract
As a Senior Advisor Analytics, you are a highly skilled professional responsible for translating operational and financial data into insights that directly influence pipeline performance,…
Added 40 mins ago
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Applied AI Engineer
Luxoft
Canada
- Full-time
Our client is an energy solutions provider. Our AI-enabled platform supports operations, tracking and decision-making to optimize large-scale renewable and traditional energy portfolios.…
Added 55 mins ago
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Senior Structural Field Engineer
Arcadis
Vancouver, BC
- Full-time
Arcadis is seeking a Senior Structural Field Engineer with at least 15 years of experience and an extensive structural design background to provide senior construction-phase engineering…
Added 55 mins ago
A
Instrumentation & Monitoring Data Review Engineer
Arcadis
Vancouver, BC
- Full-time
Arcadis is seeking an Instrumentation & Monitoring (I&M) Data Review and Monitoring Engineer to provide continuous first-line engineering surveillance of the centralized monitoring…
Added 55 mins ago
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Sr DevOps Engg - AWS
emergiTEL
Toronto, ON · Etobicoke, ON
- $150,000 to $170,000 CAD / year
- Full-time
emergiTEL is hiring a Senior DevOps Engineer – AWS for our client in the fintech / cryptocurrency industry. This is a Permanent role.
Added 1 hour ago
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Senior Sql Database Administrator
BITS Recruiting
Toronto, ON
- Contract
…Great Plains (GP) financial systems, Salesforce CRM, reporting solutions, ticketing systems, and application…
Added 1 hour ago
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Satellite Electrical Systems Engineer
Scalian
Montreal, QC
- Full-time
We are looking for a Satellite Electrical Systems Engineer to collaborate on one of our projects in the space sector.
Added 1 hour ago
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Electrical & Instrumentation Engineer
Veolia | Water Tech
Oakville, ON
- Full-time
…management, Veolia Group designs and implements innovative solutions for decarbonization, depollution, and resource regeneration, supporting communities and industries in their ecological…
Added 1 hour ago
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Senior Electrical, Instrumentation & Controls Engineer
Veolia | Water Tech
Oakville, ON
- Full-time
…management, Veolia Group designs and implements innovative solutions for decarbonization, depollution, and resource regeneration, supporting communities and industries in their ecological…
Added 1 hour ago
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Salesforce Developer
Brunel
Quebec, QC
- $100,000 to $125,000 CAD / year
- Full-time
Brunel is seeking a Forward Deployed Engineer specializing in Salesforce Agentic AI to support the design, development, and deployment of production-ready AI solutions on the Salesforce…
Added 1 hour ago
HS
Senior Integration Engineer (Boomi/Workato)
HeartCentrix Solutions
ON · Ontario, Canada
- Contract
We are seeking a Senior Integration Engineer with deep expertise in Boomi and Workato, specializing in payroll and HR system integrations. This role will focus on designing, developing, and…
Added 1 hour ago
AI
Gen AI Engineer
Apptoza Inc.
Toronto, ON
- Contract
Lead the development and delivery of enterprise GenAI products, pilots, and scalable AI solutions.
Added 1 hour ago
AI
Forward Deployed Engineer
Apptoza Inc.
Toronto, ON
- Contract
We are seeking a Senior Forward Deployed Engineer with strong expertise in Python, PySpark, data engineering, AI application development, and cloud platforms. The candidate will work…
Added 1 hour ago
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Senior Mechanical Engineer
BESTECH
Sudbury, ON · Greater Sudbury, Ontario
- Full-time
Collaborate with other engineers and project stakeholders to develop comprehensive mechanical design solutions that meet project requirements and objectives.
Added 1 hour ago
HA
Engineer
H.H. Angus & Associates Ltd.
Ottawa, ON
- Full-time
In this role, you’ll work closely with a Senior Manager and experienced team members who bring deep industry knowledge and mentorship. You’ll apply your mechanical engineering expertise and…

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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