The Senior Infrastructure

Specialistis responsible for planning, designing, and executing enterprise infrastructure modernization initiatives, including largescale migrations from legacy onpremises environments to Azure Local and hybrid Azure cloud platforms.

This role works in close partnership with engineering, architecture, application, operations, and cybersecurity teams to deliver secure, scalable, and resilient infrastructure solutions.

The ideal candidate brings deep handson technical expertise across VMware, Microsoft Azure, Azure Local, core server platforms, and automation, with a proven track record of delivering complex data center and enterprise migrations that achieve measurable improvements in performance, reliability, scalability, and cost optimization.

This role requires robust engineering judgment, the ability to execute technically complex work endtoend, and comfort operating in highly regulated, largescale enterprise environments.

The Senior Infrastructure Engineer plays a critical role in modernizing McKessons infrastructure, accelerating cloud adoption, improving platform reliability, reducing technical debt, and delivering tangible business value across the organization.

Infrastructure Strategy & Design: Plan, design, and implement migration initiatives across onpremises, hybrid, and Azure cloud environments.

Architect scalable, resilient, and secure infrastructure solutions aligned with McKesson enterprise standards.

Evaluate legacy infrastructure and define modernization and migration strategies that support business objectives.

Migration Execution & Delivery: Deliver migration plans that achieve documented performance improvements, availability enhancements, or cost savings.

Lead the planning and execution of large-scale server and data center migrations to Azure Local and hybrid cloud environments, ensuring stability, performance, and minimal operational disruption.

Partner with application teams to align infrastructure migrations with application architecture and deployment processes.

Automation, Governance & Operational Excellence: Leverage Infrastructure as Code (IaC) tools with Terraform or Ansible to deliver scalable, repeatable, and governance-aligned compute environments that support enterprise reliability and compliance.

Maintain accurate and up-to-date system documentation across on-premises, hybrid, and cloud platforms, including the creation, maintenance, and retirement (purging) of Configuration Management Database (CMDB) records, ensuring infrastructure assets, configuration items, and dependencies are properly documented to support operational integrity, lifecycle management, and audit readiness.

Utilize and adhere to the McKesson Change Management process to plan, review, and implement changes within production and disaster recovery environments, ensuring minimal disruption and controlled risk.

Participate in change reviews, implementation planning, and postimplementation validation to confirm changes meet technical,



operational, and business requirements.

Operational Readiness & Cross-Team Collaboration: Ensure infrastructure solutions comply with McKesson cybersecurity, compliance, and operational policies.

Collaborate with compute, network, storage, operations, and cybersecurity teams to ensure endtoend solution integrity and operational readiness.

Act as a post-migration escalation point for complex infrastructure issues, providing root cause analysis and remediation, while serving as a trusted technical advisor who clearly communicates recommendations, outcomes, and risks to both technical and non-technical stakeholders.

Section B General Responsibilities Seek to provide candid and timely feedback to improve performance; openly share information; foster teamwork and innovation by involving team members in problem-solving, decision-making, and creative thinking.

Ensure that requirements to internal and external customers are met in a timely and cost-effective manner; solicit feedback from customers to identify opportunities to improve products and/or services; resolve minor conflicts and involve team members in problem resolution.

Apply decision-making authority and autonomy needed to deliver accountabilities of job/role; seek approval from others on matters outside of job/role scope; when required, make decisions regarding the work and development of project team members.

Build internal and external relationships with key suppliers, customers, and internal service providers, with an emphasis on facilitating successful job/role responsibilities.

Respect and adhere to McKesson Standards, Policies, and Procedures.

Meet job performance standards and objectives outlined in the progress and appraisal guidelines.

Section C Position Requirements Minimum Qualifications :- 8+ years of handson experience in enterprise infrastructure or systems engineering roles supporting largescale, businesscritical environments and Bachelors degree in Computer Science, Computer Engineering, or a related discipline, or equivalent handson industry experience.

Knowledge: expertise in enterprise operating systems, Microsoft Azure, VMware, and enterprise storage platforms, with strong experience designing, building, operating, and troubleshooting hybrid architectures across on-premises and Azure environments.

Proven track record of executing largescale server and workload migrations from onpremises environments to hybrid and public cloud platforms.

Advanced proficiency in Power

Shell scripting to automate infrastructure provisioning, configuration, migration activities, and ongoing operational tasks.





Strong working knowledge of application architecture and deployment processes, with the ability to align infrastructure design and implementation to application and business requirements.

Ability to: Lead complex infrastructure modernization and migration initiatives, driving technical execution from design through implementation across onpremises, Azure Local, and hybrid Azure environments.

Apply strong engineering judgment to plan, build, and implement infrastructure solutions that meet enterprise requirements for security, reliability, performance, and compliance.

Anticipate and manage technical risks and dependencies throughout infrastructure and migration projects, ensuring stable implementations with minimal operational disruption.

Serve as a postimplementation escalation point to analyze, troubleshoot, and remediate infrastructure issues when required, ensuring longterm solution stability and resilience.

Operate with a high degree of ownership and accountability, independently prioritizing work, managing deliverables, and executing within defined project timelines and change windows.

Collaborate effectively with engineering, architecture, application, operations, and cybersecurity teams to deliver endtoend infrastructure solutions aligned with McKesson standards.

Demonstrate clear and effective written and verbal communication skills in English, with the ability to articulate technical designs, risks, implementation outcomes, and recommendations to both technical and nontechnical stakeholders.

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 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 McKessons (or affiliated entities, like Cover

MyMeds 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: .

📌 Senior Infrastructure Specialist (Mississauga)
🏢 MCD McKesson Canada Corporation / La Corporation McKesson Canada
📍 Mississauga