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Added 2 months ago
Junior Industrial Process Engineer / EIT
CBCL Limited
Halifax, NS
As an Engineer-in-Training or Junior Industrial Process Engineer, you will work under the guidance of experienced engineers and project managers to support process engineering assignments…
Added 2 months ago
A
Ingénieur principal ou ingénieure principale / responsable technique
Alithya
Pickering, ON
- Full-time
As a Senior Engineer and Technical Lead, you'll join our Engineering Sub-Division, a multidisciplinary team focused on delivering innovative engineering solutions and professional services.…
Added 2 months ago
S
Manager, Network Reliability and Resiliency
ServiceNow
Toronto, ON
- Full-time
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 2 months ago
IE
Senior Manufacturing Engineer
Industrial Electric Mfg. (IEM)
Surrey, BC
- $45.67 to $56.25 CAD / hour
- Full-time
IEM is currently seeking a Senior Manufacturing Engineer (Manufacturing Engineer, E3) for our Surrey, B.C. locations and will report into the Senior Manager of Manufacturing Engineering.…
Added 2 months ago
Commissioning Engineer
Systemex
Montreal, QC
Systemex Group is a growing global organization bringing together complementary expertise in industrial automation and industrial consulting. We help our clients grow and improve customer…
Added 2 months ago
S
Intermediate Engineer – Process Performance and Operational Readiness
Systemex
Montreal, QC
- Full-time
Systemex Group is a growing global organization bringing together complementary expertise in industrial automation and industrial consulting. We help our clients grow and improve customer…
Added 2 months ago
S
Automation Project Engineer Manager
Systemex
Laval, QC
- Full-time
Join Systemex Automation as Automation Project Engineer, and help lead the growth of a technical team specialized in industrial automation, robotics, and control systems programming. You…
Added 2 months ago
S
Senior Engineer – Process Performance and Operational Readiness
Systemex
Montreal, QC
- Full-time
Systemex Group is a growing global organization bringing together complementary expertise in industrial automation and industrial consulting. We help our clients grow and improve customer…
Added 2 months ago
S
Senior Advisor, Asset Management & Operational Efficiency
Systemex
Montreal, QC
- Full-time
Systemex Group is a growing global organization bringing together complementary expertise in industrial automation and industrial consulting. We help our clients grow and improve customer…
Added 2 months ago
AF
Application Engineering - Proposals
Armstrong Fluid Technology
Toronto, ON
- Full-time
The Application Engineer is responsible for providing technical application support, developing engineered solutions, and preparing competitive proposals for HVAC, Fire Pump, and integrated…
Added 2 months ago
PE
Senior Embedded Linux Developer (Audio Platforms)
Paradigm Electronics Inc.
Ottawa, ON
- $110,000 to $145,000 CAD / year
- Full-time
We are looking for a Senior Embedded Linux Developer to engineer, maintain, and optimize the core Linux foundation for our next-generation streaming audio products. You will assume…
Added 2 months ago
B
Software Engineer - AI Developer Productivity
Baseten
Montreal, QC
- $165,000 to $330,000 USD / year
- Full-time
…approaches actually work, and the rollout mechanics that get a new engineer productive with agents in week…
Added 2 months ago
E
Project Engineer -Water & Wastewater
EXP
Brampton, ON
- Full-time
Be our next Project Engineer - Water & Wastewater!
Added 2 months ago
EA
Quality Designer II – FC Live-Curation QV
Electronic Arts (EA)
Vancouver, BC
- Full-time
…experience by integrating new technologies and driving test automation as well as process improvements within the Live Curation-Content QV…
Added 2 months ago
M
Automation Engineer
MDA
Sainte-Anne-de-Bellevue, QC
- Full-time
We’re on the hunt for a Automation Engineer on our Satellite systems team at our Montreal office.
Added 2 months ago
E
Senior DevOps Engineer
e-STORAGE
Kitchener, ON
- Full-time
We are seeking a talented Sr DevOps Engineer to join our dynamic team and contribute to the delivery of on-site and cloud-based Energy Management System (EMS) for utility grade systems. The…
Added 2 months ago
H
Building Engineering Services Business Group Data Steward
HDR
Toronto, ON
- Full-time
For project teams, this will result in less time cleaning up data and more time delivering. For technical staff, it means clearer expectations and fewer one‑off requests. For leaders, it…
Added 2 months ago
TW
Field Services Engineer
TPD® Workforce Solutions
Montreal, QC
- Full-time
…equipment, and play a key role in supporting a major fab expansion…
Added 2 months ago
SD
DevOps Engineer - Senior
Symbiotic Digital
ON · Downtown Toronto (CN Tower / King and Spadina / Railway Lands / Harbourfront West / Bathurst Quay / South Niagara / YTZ), Ontario
- Contract
We are seeking a Senior DevOps/Cloud Engineer to support the
Added 2 months ago
M
Software Product Assurance Engineer
MDA
Sainte-Anne-de-Bellevue, QC
- Full-time
…standards. The SW PA is part of exciting satellite constellation project teams, and the SW PA is involved in the assembly, integration, and test environment activities, as well as providing…
Added 2 months ago
GS
Electrical Engineer/Designer
Grantek Systems Integration
Burlington, ON
- Full-time
Grantek is a recognized leading provider of integrated automation, smart manufacturing and industrial information solutions in the global marketplace. Our clients are some of the worlds…
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 1 month ago
C
Senior Software Engineer, Java and AI Development - Vice President
Citi
Mississauga, ON
- Full-time
We are seeking a highly motivated and skilled Senior Software Engineer to join our innovative team, blending backend development expertise with emerging AI technologies.
Added 2 months ago
Software Engineer
Capgemini
Mississauga, ON
…with experience working with secure software solutions, test automation, and AI-assisted development…
Added 2 months ago
S
Senior Ethical Hacker
Stantec
Toronto, ON
- Full-time
Engineer custom Python, Terraform, and Ansible extensions to enable specialized security and

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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