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 current 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.
The Senior Infrastructure Engineer is responsible for planning, designing, and executing enterprise infrastructure modernization initiatives, including large‑scale migrations from legacy on‑premises 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.
Infrastructure Strategy & Design
Plan, design, and implement migration initiatives across on‑premises, 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 post‑implementation 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 end‑to‑end 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.
Position Requirements Minimum Qualifications
8+ years of hands‑on experience in enterprise infrastructure or systems engineering roles supporting large‑scale, business‑critical environments and a Bachelor’s degree in Computer Science, Computer Engineering, or a related discipline, or equivalent hands‑on 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 large‑scale server and workload migrations from on‑premises environments to hybrid and public cloud platforms.
Advanced proficiency in PowerShell 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 imp

📌 Senior Infrastructure Specialist (Mississauga)
🏢 McKesson
📍 Mississauga