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Added 14 mins ago
CE
Portfolio Architect
Cenovus Energy
Calgary, AB
- Full-time
Reporting to the Senior Manager Architecture, the Portfolio Architect will bring expertise in the oil and gas industry and a practical understanding of upstream business capabilities,…
Added 29 mins ago
AI
Data Business Analyst - PL/SQL, T-SQL & Data Warehousing
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Skills: Business Analysis, Solution and Functional Architect (SAFA), Data Analytics & Insights – ignio AIOps
Added 29 mins ago
A
Salesforce DevOps Lead || Fulltime || Toronto, ON
AceStack
Toronto, ON
- Full-time
…pipelines, deployment automation, and release management for enterprise-scale Salesforce…
Added 29 mins ago
IS
Enterprise Architect
Iris Software Inc.
Toronto, ON
- Full-time
Iris Software is hiring Enterprise Architect multinational investment banking and financial services corporations. Our client is world-leading financial services companies, provides…
Added 29 mins ago
A
Data Architect
Altis
Mississauga, ON
- $70 to $100 CAD / hour
- Full-time
…technology? We're looking for a Data & Analytics Solutions Architect to shape enterprise-wide data, analytics, and AI solutions within a forward-thinking…
Added 29 mins ago
AS
Senior Solutions Architect
Alquemy Search & Consulting
Calgary, AB
- Full-time
Working closely with business stakeholders, Enterprise Architects, Business Architects, Functional Analysts, Technical Analysts, Developers, Infrastructure teams, Cybersecurity teams,…
Added 29 mins ago
SI
SAP HANA Database Administrator
Spruce InfoTech Inc.
Calgary, AB
- Contract
Architect and manage complex SAP HANA system architectures, including Multi-Tenant, scale-in/scale-out landscapes, and dynamic tiering.
Added 44 mins ago
SAP S/4HANA Solution Architect
Capgemini
Mississauga, ON
The SAP S/4HANA Solution Architect is responsible for leading the design, architecture, governance, and successful delivery of enterprise-wide SAP solutions that support business…
Added 59 mins ago
TT
Technology Lead Enterprise Platforms and Operations
Tundra Technical Solutions
Toronto, ON
- $140,000 to $145,000 CAD / year
- Full-time
…collaborative technology leader to take comprehensive ownership of our enterprise platforms and corporate…
Added 59 mins ago
D
Lead, Forward Deployed Engineering
Deliverect
Toronto, ON
- Full-time
…passionate and innovative engineers, designers, and product managers architect tools that empower businesses to thrive in the evolving digital landscape, streamlining digital ordering for…
Added 1 hour ago
R
Director, Enterprise Integration Services – OneRBC: CNB Integration
RBC
Toronto, ON
- Full-time
Join RBC's US CIO Technology Strategy and Architecture team as Director, Enterprise Integration Services for the OneRBC: CNB Integration program - a transformational, multi-year initiative…
Added 1 hour ago
P/
Solutions Architect
PrecisionERP / PrecisionIT
Toronto, ON
- $100 to $110 CAD / hour
- Contract
We are seeking an experienced Senior Solutions Architect to design and implement enterprise application architectures in a large, complex IT environment. The ideal candidate will have…
Added 1 hour ago
US
Adobe CDP Architect
United Software Group Inc
Vancouver, BC
- $100 to $110 CAD / hour
- Contract
Design integrations between Adobe Experience Platform and enterprise systems such as SAP, Microsoft Fabric, Azure, AWS, Salesforce Marketing Cloud, and legacy platforms.
Added 1 hour ago
IS
AI Solution Architect / Partner (Banking)
Iris Software Inc.
Toronto, ON
- Full-time
Iris's direct client, one of the Top 5 Bank in Canada, is looking to hire a AI Solution Architect / Partner (Banking) for a long term opportunity at Remote.
Added 2 hours ago
Solution Architect III, Platform, FSI, Google Cloud
Google
Toronto, ON
…engage in proof of concepts and demos, and use your expertise to architect cross-pillar cloud solutions that solve these business issues. You will drive the technical win and define the…
Added 2 hours ago
Platform Solution Architect III, Google Cloud
Google
Calgary, AB · Vancouver, BC
As a Platform Solution Architect, you will partner with technical Sales teams to differentiate Google Cloud to our customers. You will serve as the customer’s primary technical partner and…
Added 2 hours ago
ML
AI Engineer
MACHINE LEARNING TECHNOLOGIES LLC
Toronto, ON
- Full-time
Design, architect, and build scalable Gen AI solutions, including LLM pipelines, Agentic, MCP, Graph/RAG architectures, prompt-based applications, and emerging technologies.
Added 2 hours ago
N
Solutions Architect
NULogic
Canada
- Contract
MFCS / IMCS / RESA Solution Architect – Techno/Functional Lead
Added 4 hours ago
AI Outcome Customer Developer, Forward Deployed Development
Google
Toronto, ON
As an AI Outcome Customer Developer in our GTM AI Tech organization, you work as an enterprise architect, technical debugger, development liaison and technical delivery manager. You will…
Added 6 hours ago
O
Sr. Director, Product Management, AI Product Strategy
OpenText
Waterloo, ON
- Temporary
Architect and deliver production-grade agentic systems using LangChain, LangGraph, A2A (Agent-to-Agent) protocols, and other transformative AI frameworks to create adaptive, multi-agent…
Added 6 hours ago
C
AI Architect
Coforge
Canada
- Contract
🚀 Hiring: AI Architect – Enterprise AI Platform
Added 6 hours ago
AI
GCP Infrastructure & Cloud SRE Engineer
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Build and manage enterprise-scale cloud platforms on Google Cloud Platform (GCP).
Added 7 hours ago
F
Senior Machine Learning Engineer
Fusemachines
Remote, Canada
- Contract
- Remote
…worldwide. Founded in 2013, Fusemachines is a global provider of enterprise AI products and services, on a mission to democratize AI. Leveraging proprietary AI Studio and AI Engines, the…
Added 8 hours ago
M
RQ11824 - IT Enterprise Architect/Strategist - Senior
Maarut
Toronto, ON
- Contract
Develops recommends, implements and manages IT Enterprise
Added 9 hours ago
CC
Teamcenter PLM Consultant
Cuatro Consulting Inc.
Mississauga, ON
- Full-time
…multiple functional and technical specializations to support enterprise-level PLM implementations, integrations, and transformation…

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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