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Added 8 mins ago
RH
Culinary Specialist - Full Time Opportunity
Rural Healthcare Innovations: Dundas Manor
Winchester, ON
- Full-time
The Culinary Specialist is responsible for all aspects of meal production within Dundas Manor’s Cook-Chill Production Program, including food preparation, batch cooking, chilling,…
Added 8 mins ago
RH
Culinary Specialist - Casual
Rural Healthcare Innovations: Dundas Manor
Winchester, ON
- Full-time
The Culinary Specialist is responsible for all aspects of meal production within Dundas Manor’s Cook-Chill Production Program, including food preparation, batch cooking, chilling,…
Added 8 mins ago
WHS Specialist
Amazon
Ottawa, ON
…Amazon, we’ve set the ambitious goal to become the benchmark of safety excellence across all industries in which we operate. As a Workplace Health & Safety Specialist (WHSS), you'll be at…
Added 8 mins ago
UH
Research Technician II
University Health Network
Toronto, ON
- Contract
This is a dual role. The successful candidate will serve as the lab's in vivo mouse specialist, managing our mouse colony and performing the transplantation, treatment and tissue-harvest…
Added 8 mins ago
SD
Beauty Specialist, Hourly Part Time Flexible Shifts
Shoppers Drug Mart
Edmonton, AB
- Part-time
Complies with all health and safety regulations
Added 8 mins ago
SD
Beauty Specialist, Hourly Part Time Flexible Shifts Greenlight Requisition
Shoppers Drug Mart
Regina, SK
- Part-time
Complies with all health and safety regulations
Added 8 mins ago
SD
Beauty Specialist, Hourly Part Time Flexible Shifts Greenlight Requisition
Shoppers Drug Mart
Calgary, AB
- Part-time
Complies with all health and safety regulations
Added 38 mins ago
CE
Cyber Security Specialist
Cenovus Energy
Calgary, AB
- Full-time
Reporting to the Senior Manager, Cyber Security Operation, the Cyber Security Specialist is a senior technical resource within the Cyber Security Operations team, providing expert-level…
Added 52 mins ago
S
Senior Security Analyst
SAP
Toronto, ON
- Full-time
SAP Enterprise Cloud Services is looking for a Senior Security Specialist with a strong technological and security background across the stack. Your focus topic will be Security Incident…
Added 52 mins ago
SC
Environmental Health Safety Specialist
St Clair Mechanical Inc.
Brigden, ON
- Full-time
Role Description The Environmental Health Safety Specialist is a full-time, on-site role based in Brigden, ON. This position is responsible for developing, implementing, and maintaining…
Added 52 mins ago
HT
Advanced Applications Blow Molding Specialist
Husky Technologies
Bolton, ON
- Full-time
Title: Advanced Applications Blow Molding Specialist
Added 52 mins ago
PC
End-User Support Specialist – 1 year contract
Pinchin Canada
Mississauga, ON
- $55,000 to $60,000 CAD / year
- Full-time
End-User Support Specialist - 1 year contract
Added 52 mins ago
B
Senior Eddy Current Specialist
BWXT
Kitchener, ON
- Full-time
As our Senior Technical Specialist, Balance of Plant Eddy Current you will be accountable for the end-to-end planning, preparation, and successful execution of Balance of Plant Eddy Current…
Added 52 mins ago
HR
Specialist, Designated Sales Associate - Denim
Holt Renfrew
Toronto, ON
- Full-time
The Specialist, Designated Sales Associate develops deep, long lasting relationships with customers that lead to an increase in sales, service, and loyalty. The Specialist (DSA) is also…
Added 53 mins ago
A
Senior Instrumentation & Monitoring Quality Assurance Engineer - Geotechnical
Arcadis
Vancouver, BC
- Full-time
…identify emerging trends and help maintain confidence in the safety and performance of the…
Added 53 mins ago
Senior Technical Specialist
Insurance Corporation of British Columbia
North Vancouver, BC
The Information Services Division is currently looking for a Senior Technical Specialist. In this position, you will provide senior-level technical leadership for the design,…
Added 1 hour ago
Laboratory Technician
University of Toronto
Toronto, ON
…Furthermore, the department provides a rigorous undergraduate specialist and major in Molecular Genetics and Microbiology. Our faculty, fellows, and students are highly acclaimed for…
Added 1 hour ago
Senior Specialist, Subcontracts Management
L3Harris Technologies
Mirabel, QC
Job Title: Senior Specialist, Subcontracts Management
Added 1 hour ago
PI
End-User Support Specialist – 1 year contract
Pinchin in Canada
Mississauga, ON
- $55,000 to $60,000 CAD / year
- Full-time
Join Pinchin’s IT team as an End-User Support Specialist and build your hands-on experience supporting employees and technology across the organization. This is a 1-year contract based in…
Added 1 hour ago
WHS Specialist
Amazon
Mississauga, ON
…Amazon, we’ve set the ambitious goal to become the benchmark of safety excellence across all industries in which we operate. As a Workplace Health & Safety Specialist (WHSS), you'll be at…
Added 1 hour ago
SJ
C.T. Technologist CT
St. Joseph's Health Centre, Toronto
Toronto, ON
- Temporary
Monitors patient status and responds to any change in condition, to ensure patient safety and comfort
Added 1 hour ago
QT
Spécialiste en assurance de la qualité (AQ) / Quality Assurance (QA) Specialist
Quantum Technology Recruiting Inc. (QTR)
Montreal, QC
- $65,000 to $80,000 CAD / year
- Full-time
Position: Quality Assurance (QA) Specialist | Public Safety Software
Added 1 hour ago
C
Sales Associate
Claire's
Barrie, ON
- $17 USD / hour
- Part-time
You are willing to become a certified Claire’s Piercing Specialist and perform piercings in strict accordance with documented clinical, safety, and hygiene standards.
Added 1 hour ago
CH
Maintenance Technician - The Queen's Cue & Boars Head Pub
Crescent Hotels & Resorts
Stratford, ON
- Full-time
…fixtures, escalating larger mechanical, electrical, HVAC or life-safety concerns to the appropriate contractor or…
Added 1 hour ago
SH
Technical Applications Specialist
Siemens Healthineers
Oakville, ON
- Temporary
The Technical Applications Specialist is responsible for providing clinical/technical applications support and troubleshooting (based on their specific and specialized training),…

McKesson

Sr. Network Security Specialist

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 professional experience in network engineering, including experience with network architecture, security design, or enterprise infrastructure strategy.
Posting language: English
Posted: Oct 30, 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 Specialist to design and advance secure, resilient, and scalable network infrastructure across enterprise, hybrid-cloud, and on-premises environments. In this senior individual-contributor role, you will shape network security architecture, establish technical standards, and reduce attack surfaces through Zero Trust, segmentation, and secure access strategies.

You will partner with Security, Enterprise Architecture, Infrastructure, and business stakeholders to translate operational and regulatory needs into practical security designs. You will also evaluate emerging technologies, lead architecture reviews, strengthen network visibility, and help ensure critical connectivity services remain secure, available, and positioned for business growth.

What You’ll Do

Design secure network architectures for hybrid-cloud and on-premises environments using Zero Trust, network segmentation, micro-segmentation, and secure-by-design principles.

Lead network security architecture reviews, risk assessments, design validation, and the development of reusable security patterns and standards.

Architect and optimize firewall and perimeter security capabilities, including Palo Alto Networks, Zscaler, HPE Aruba EdgeConnect, secure internet gateways, and web proxy solutions.

Design secure workforce and device access solutions using Zero Trust Network Access, VPN technologies, Network Access Control, and identity-aware security controls.

Strengthen threat detection through network traffic analysis, IDS/IPS technologies, security monitoring, telemetry, and security analytics.

Evaluate technologies, proofs of concept, and vendor solutions to inform network security roadmaps and investment decisions.

Partner with Security, Enterprise Architecture, Infrastructure, and operations teams to improve resilience, regulatory alignment, and business continuity.

Provide technical leadership during complex incidents, conduct root cause analysis, and implement sustainable corrective actions and automation.

Basic Requirements

7+ years of professional experience in network engineering, including experience with network architecture, security design, or enterprise infrastructure strategy.

Demonstrated experience designing and implementing secure enterprise networks across hybrid-cloud and on-premises environments.

Hands-on experience with enterprise firewall technologies, including policy design, configuration, administration, and optimization.

Experience applying Zero Trust, network segmentation, micro-segmentation, or secure network design principles.

Experience with routing, switching, and network protocols such as TCP/IP, BGP, OSPF, MPLS, or SD-WAN.
Experience producing architecture diagrams, design standards, technical documentation, or security review findings.

Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field, or an equivalent combination of education and relevant experience.

Preferred Skills/Experience

Experience with Palo Alto Networks, Zscaler, and HPE Aruba EdgeConnect.
Experience with network traffic analysis, IDS/IPS, security analytics, and incident investigation.
Experience with secure access technologies such as ZTNA, VPN, NAC, secure internet gateways, or web proxies.

Knowledge of regulatory, compliance, or security-control frameworks in a regulated enterprise environment.

Experience with cloud networking and cloud security architecture.

Automation or orchestration experience using Ansible, Python, APIs, or infrastructure-as-code practices.

Experience conducting vendor assessments, proofs of concept, capacity planning, and technology roadmap development.

Relevant certifications such as PCNSE, CISSP, CCNP Security, CCIE Security, or vendor-specific cloud or security credentials.

Ability to explain complex security risks and architecture decisions clearly to technical and nontechnical stakeholders.

Travel, Work Environment, and Physical Requirements

Work location, in-office expectations, and travel requirements will be defined based on the approved position and team needs. The role primarily involves computer-based architecture, documentation, collaboration, and technical analysis. Any position-specific physical requirements or accommodations should be included in the final approved posting.

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

Design and advance secure, resilient, and scalable network infrastructure across enterprise, hybrid-cloud, and on-premises environments. Lead network security architecture reviews, risk assessments, and the development of reusable security standards.

Requirements

Requires 7+ years of professional experience in network engineering, security design, or enterprise infrastructure strategy. Candidates must have a bachelor's degree in a related field or an equivalent combination of education and experience.

Skills

Network security architecture
Zero Trust
Network segmentation
Firewall administration
Palo Alto Networks
Zscaler
HPE Aruba EdgeConnect
Hybrid-cloud security
Network protocols
Threat detection
IDS/IPS
Security analytics
Identity-aware security
Risk assessment
Technical leadership

Benefits

Annual bonus
Long-term incentive opportunities

Visa sponsorship

Not detected in the job text

Keywords

Network Security
Zero Trust
Hybrid-cloud
Segmentation
Micro-segmentation
Palo Alto Networks
Zscaler
HPE Aruba EdgeConnect
VPN
ZTNA
NAC
IDS/IPS
TCP/IP
BGP
OSPF
MPLS
SD-WAN
Ansible
Python
Infrastructure-as-code
PCNSE
CISSP
CCNP Security
CCIE Security
Network Engineering
Security Architecture
Risk Assessment
Regulatory Compliance
Business Continuity
Automation

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