Lead Full Stack Software Architect

McKesson•Mississauga, ON

68d

About The Position

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. McKesson’s Provider Solutions organization is investing heavily to deliver a connected, personalized digital experience for patients, providers, and manufacturers. As part of this strategy, we are modernizing our ecommerce Customer Center and transforming the underlying technology architecture. We’re seeking a hands-on Software Architect to define the target architecture, lead modernization, and guide engineering teams as we evolve from a legacy stack (Java, SAP NetWeaver, GWT, Oracle) to a scalable, cloud‑forward platform. Experience with eCommerce and SAP‑integrated systems is highly desirable. The ideal candidate can understand the current system, chart a safe modernization path, and lead development teams through the transformation.

Requirements

Degree or equivalent and typically requires 10+ years of relevant experience. Less years required if has relevant Master’s or Doctorate qualifications.
Extensive hands-on software engineering experience with strong expertise in Java and modern architecture.
Demonstrated experience leading modernization or platform transformation initiatives in complex enterprise environments.
Strong understanding of architecture patterns such as microservices, event-driven systems, API-first design, integration architecture, and cloud-native principles.
Hands-on experience with cloud platforms (AWS or Azure), containerization, CI/CD, infrastructure-as-code, and observability.
Ability to understand and work within legacy systems (Java, SAP NetWeaver, GWT) to plan safe and incremental modernization.
Strong leadership and communication skills with the ability to influence and collaborate across technical and non-technical teams.

Nice To Haves

Experience with eCommerce and SAP‑integrated systems is highly desirable.

Responsibilities

Own the technical architecture for the Customer Center modernization, including target-state designs, domain boundaries, and migration strategies.
Lead modernization execution using pragmatic patterns such as API‑first design, domain decomposition, strangler approaches, and event-driven integration.
Mentor and guide onshore and offshore engineering teams, ensuring alignment to architecture, quality, security, and reliability standards.
Provide hands-on engineering support when needed, including creating proofs of concept, reference implementations, and starter kits.
Partner with Product, UX, Security, Cloud/Platform, Data, and SAP teams to design cohesive, scalable solutions.
Ensure the application maintains an excellent security posture, including secure coding practices, security-by-design architecture, threat modeling, and adherence to enterprise controls.
Lead and participate in build, buy, and partner evaluations, analyzing trade-offs, vendor capabilities, total cost of ownership, and alignment with long-term architectural strategy.
Oversee integration strategy with SAP and other enterprise systems, ensuring robust data contracts, fault tolerance, and operational stability.
Collaborate with operations to ensure observability, SLO adherence, performance optimization, and reliable production operations.
Support production incidents as a technical escalation point and drive long-term improvements through root cause analysis.
Participate in hiring and talent evaluation to help build a high-performing engineering organization.