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Added 2 months ago
GS
Electrical Engineer/Designer
Grantek Systems Integration
Burlington, ON
- Full-time
The Electrical Engineer/Designer at Grantek is an exciting opportunity for an intermediate to senior-level professional with a strong background in electrical design and industrial control…
Added 2 months ago
M
Sr. Network Systems Engineer, Firewall
McKesson
Mississauga, ON
- Full-time
McKesson is seeking a Senior Network Security Engineer to help design, secure, and evolve our global enterprise network infrastructure. This role serves as a strategic technical leader…
Added 2 months ago
M
Sr. Network Systems Engineer, Firewall
McKesson
Mississauga, ON
- Full-time
McKesson is seeking a Senior Network Security Engineer to lead the design, implementation, and governance of secure enterprise network infrastructure across cloud, data center, and hybrid…
Added 2 months ago
L
Stations Assistant Project Manager, Infrastructure
Ledcor
Bowmanville, ON · Markham, ON
- Full-time
…execution, including civil, structural, architectural, and building systems scopes, while contributing to project controls, commercial management, stakeholder coordination, and successful…
Added 2 months ago
S
Senior Ethical Hacker
Stantec
Toronto, ON
- Full-time
Conduct penetration tests on cloud systems, applications and APIs to identify vulnerabilities.
Added 2 months ago
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Scheduler
Binnie
Burnaby, BC
- Full-time
…Projects Division in Burnaby, BC. Our team provides Owner's Engineer and Project Delivery services on some of the province's largest and most complex transportation infrastructure projects,…
Added 1 month ago
Temporary works design specialist
Aecon
Fredericton, NB
…construction, estimating, planning, procurement and project controls teams to ensure temporary works solutions are safe, constructible, cost-effective and fully integrated into the overall…
Added 3 months ago
RA
Senior Engineer, Electrical
R.V. Anderson Associates Limited
Toronto, ON
- Full-time
RVA is looking for a Senior Electrical Engineer who is interested in working on projects varying in scope and size related to water distribution systems, industrial and institutional…
Added 2 months ago
ES
Controls Technician - Tech VII
Equans Services Canada & US
Surrey, BC
- Full-time
As a Controls Technician specializing in HVAC systems at Equans, you will be responsible for the installation, maintenance, troubleshooting, and repair of automated control systems that…
Added 2 months ago
PR
WIREMAN
PNR RailWorks
Mississauga, ON
- Full-time
· Experience testing electrical controls, PLC’s, SCADA systems would be a plus.
Added 2 months ago
Senior Embedded Software Engineer
Alstom
Brampton, ON
Minimum of 7 years of experience in embedded software or embedded controls engineering, in complex electromechanical systems.
Added 2 months ago
LA
Aircraft Maintenance Engineer or Senior Apprentice
Latitude Air Ambulance
Hamilton, ON
- Full-time
Aircraft Maintenance Engineer: Your journey begins here! This position assists the Maintenance Department in the service, repair, and preventative maintenance of our growing fleet of…
Added 2 months ago
AI Engineer
First West
Langley (District), BC · Langley, BC
We are currently seeking an AI Engineer to join our team.
Added 2 months ago
Electrical Engineer
FortisBC
Castlegar, BC
Knowledge and understanding of control systems, power distribution, protection and controls, hydro generating units, and their functions within an electrical utility environment.
Added 3 months ago
K
Manufacturing Engineer
Knoll
Toronto, ON
- Full-time
…Engineering, in the Engineering department, the Manufacturing Engineer is responsible for the design, development, implementation, and continuous improvement of manufacturing processes.…
Added 3 months ago
TI
Maintenance Technician - Power Engineer
TopGum Industries
Charlottetown, PE
- $30 to $35 CAD / hour
- Full-time
POSITION: Maintenance Technician - Power Engineer
Added 2 months ago
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Data Engineer
Vretta
Toronto, ON
- Full-time
Vretta is looking for a Data Engineer to join our Data and Evaluation team. This position requires excellent communication skills, creative problem solving ability, and a sound technical…
Added 2 months ago
AI
Senior Controls Systems Software Designer
ATS Industrial Automation
Woodbridge, ON
- Full-time
…integrating control software with electrical and mechanical systems, and mentoring junior controls team members. You will support process development and machine installation at customer…
Added 2 months ago
PU
Technical Lead, Portfolio Management
Purpose Unlimited
Canada
- Full-time
Lead the design and implementation of systems for portfolio management and trading, including portfolio construction, rebalancing, order generation, execution support, post-trade analysis,…
Added 2 months ago
Test Engineer Senior
Acuity Inc.
Brossard, QC
We achieve growth through the development of innovative new products and services, including lighting, lighting controls, building management solutions, and an audio, video and control…
Added 1 month ago
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Sr Engineer
Vale
Canada
- Full-time
As a senior member of the Central Engineering team, the Senior Electrical Engineer will provide technical expertise on electrical and control systems within Vale’s Manitoba Operations. The…
Added 2 months ago
KC
Bilingual Senior AWS Platform Engineer
KPMG Canada
Vaughan, ON
- Full-time
We are seeking a Senior AWS Platform Engineer to manage platform-level activities across two AWS Organizations. The role is focused on AWS platform administration, Terraform-led automation,…
Added 2 months ago
KC
Bilingual Senior AWS Platform Engineer
KPMG Canada
Oakville, ON
- Full-time
We are seeking a Senior AWS Platform Engineer to manage platform-level activities across two AWS Organizations. The role is focused on AWS platform administration, Terraform-led automation,…
Added 2 months ago
KC
Bilingual Senior AWS Platform Engineer
KPMG Canada
Hamilton, ON
- Full-time
We are seeking a Senior AWS Platform Engineer to manage platform-level activities across two AWS Organizations. The role is focused on AWS platform administration, Terraform-led automation,…
Added 2 months ago
KC
Bilingual Senior AWS Platform Engineer
KPMG Canada
Montreal, QC
- Full-time
We are seeking a Senior AWS Platform Engineer to manage platform-level activities across two AWS Organizations. The role is focused on AWS platform administration, Terraform-led automation,…

McKesson

Sr. Network Systems Engineer, Firewall

Mississauga, ON, Canada

$99,100 - $132,100 · Full-time

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Job details

Pay: $99,100 - $132,100
Job type: Full-time
Experience: 7+ years of progressive experience in network security engineering, cybersecurity engineering, infrastructure engineering, or related technical roles.
Posting language: English
Posted: Aug 19, 2026

Original job description

McKesson is an impact-driven, Fortune 10 company that touches virtually every aspect of healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of you and those we serve – we care.

What you do at McKesson matters. We foster a culture where you can grow, make an impact, and are empowered to bring new ideas. Together, we thrive as we shape the future of health for patients, our communities, and our people. If you want to be part of tomorrow’s health today, we want to hear from you.

About the Role

McKesson is seeking a Senior Network Security Engineer to lead the design, implementation, and governance of secure enterprise network infrastructure across cloud, data center, and hybrid environments. This role will drive the evolution of McKesson’s network security architecture through Zero Trust principles, segmentation strategies, secure access technologies, and advanced threat detection capabilities. The ideal candidate combines strong network engineering expertise with a modern security mindset and the ability to build scalable, resilient, and compliant infrastructure that supports critical business operations.

What You'll Do

Lead the design and implementation of secure network architectures using Zero Trust principles.

Develop and maintain network segmentation and micro-segmentation strategies to reduce attack surface and improve security posture.

Perform security architecture reviews and provide technical recommendations for infrastructure modernization initiatives.

Manage and optimize Palo Alto firewalls, network security policies, and perimeter defense controls.

Support Zscaler, Secure Internet Gateway, web proxy, and HPE EdgeConnect technologies across enterprise environments.

Design and support secure remote-access solutions including Zero Trust Network Access (ZTNA), VPN, and Network Access Control (NAC).

Monitor and analyze network traffic using IDS/IPS technologies, threat detection platforms, and security analytics tools.

Partner with cloud, infrastructure, and platform engineering teams to ensure secure, scalable, and compliant network services.

Minimum Requirements

7+ years of progressive experience in network security engineering, cybersecurity engineering, infrastructure engineering, or related technical roles.

Bachelor's degree or equivalent combination of education and experience.

Hands-on experience designing and supporting enterprise network security architectures.

Experience administering enterprise firewall platforms, including Palo Alto Networks.

Experience with Zero Trust Architecture, network segmentation, and secure network design.

Experience supporting VPN, ZTNA, NAC, or related identity-based network access technologies.

Experience with IDS/IPS technologies, network traffic analysis, and security monitoring.

Ability to communicate technical concepts and influence security decisions across multiple teams.

Preferred Skills

Experience with Zscaler, Secure Internet Gateway technologies, and web proxy solutions.

Experience supporting HPE Aruba EdgeConnect or SD-WAN environments.

Knowledge of micro-segmentation technologies in multi-cloud or hybrid environments.

Experience securing cloud networking environments within AWS, Azure, or GCP.

Knowledge of infrastructure automation tools such as Terraform, Ansible, or Puppet.

Experience with Kubernetes, container security, and modern platform engineering practices.

Experience working in healthcare or other highly regulated industries.

Security certifications such as CISSP, PCNSE, CCNP Security, CCIE Security, Zscaler certifications, or equivalent.

Travel, Work Environment & Physical Requirements

Hybrid or remote work arrangement based on business needs.

Limited travel may be required for team collaboration, strategic planning sessions, or project implementation activities.

Ability to work on a computer for extended periods and participate in virtual or in-person meetings.

We are proud to offer a competitive compensation package at McKesson as part of our Total Rewards. This is determined by several factors, including performance, experience and skills, equity, regular job market evaluations, and geographical markets. The pay range shown below is aligned with McKesson's pay philosophy, and pay will always be compliant with any applicable regulations. In addition to base pay, other compensation, such as an annual bonus or long-term incentive opportunities may be offered. For more information regarding benefits at McKesson, please click here.

Our Base Pay Range for this position

$99,100 - $132,100

McKesson has become aware of online recruiting-related scams in which individuals who are not affiliated with or authorized by McKesson are using McKesson’s (or affiliated entities, like CoverMyMeds or RxCrossroads) name in fraudulent emails, job postings or social media messages. In light of these scams, please bear the following in mind:

McKesson Talent Advisors will never solicit money or credit card information in connection with a McKesson job application.

McKesson Talent Advisors do not communicate with candidates via online chatrooms or using email accounts such as Gmail or Hotmail. Note that McKesson does rely on a virtual assistant (Gia) for certain recruiting-related communications with candidates.

McKesson job postings are posted on our career site: careers.mckesson.com.

McKesson is an Equal Opportunity Employer

McKesson provides equal employment opportunities to applicants and employees, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, age, genetic information, or any other legally protected category. For additional information on McKesson’s full Equal Employment Opportunity policies, visit our Equal Employment Opportunity page.

McKesson is committed to being an Equal Employment Opportunity Employer and offers opportunities to all job seekers including job seekers with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, please contact us by sending an email to (United States) Disability_Accommodation@McKesson.com or (Canada) Accessibility@mckesson.ca. Resumes or CVs submitted to this email box will not be accepted.

Join us at McKesson!

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More about this job

Responsibilities

Lead the design, implementation, and governance of secure enterprise network infrastructure across cloud and hybrid environments using Zero Trust principles. Manage and optimize firewall platforms, network segmentation strategies, and advanced threat detection capabilities to ensure a secure and compliant infrastructure.

Requirements

Requires 7+ years of progressive experience in network security or infrastructure engineering and a bachelor's degree or equivalent. Candidates must have hands-on experience with enterprise firewall platforms, Zero Trust architecture, and secure network design.

Skills

Network security engineering
Zero Trust architecture
Palo Alto firewalls
Network segmentation
Micro-segmentation
Zscaler
VPN
ZTNA
NAC
IDS/IPS
Security architecture
Threat detection
Cloud networking
Infrastructure modernization
Network traffic analysis

Benefits

Annual bonus
Long-term incentive opportunities

Visa sponsorship

Not detected in the job text

Keywords

Network Security
Zero Trust
Palo Alto Networks
Zscaler
HPE EdgeConnect
SD-WAN
AWS
Azure
GCP
Terraform
Ansible
Puppet
Kubernetes
CISSP
PCNSE
CCNP Security
CCIE Security
Cybersecurity
Infrastructure Engineering
Micro-segmentation
VPN
ZTNA
NAC
IDS/IPS
Cloud Networking
Hybrid Environment
Data Center
Security Analytics
Compliance
Healthcare

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