Senior Software Developer — AI-Enabled Healthcare Cloud

McKesson’s Corporate; Mississauga; Hybrid; CAD 141,000 - 188,000; Full time

Job summary

McKesson is seeking a Sr. Software Developer to design, build, and scale modern software solutions across cloud-native platforms.

You will work on API-first services, secure and reliable applications, and AI-enabled engineering practices within a regulated enterprise environment. The role emphasizes cross-functional collaboration with engineering, architecture, product, and security teams, using Azure, Kubernetes, and event-driven patterns to advance CI/CD, testing, and automation.

Qualifications

• 7+ years of professional software engineering experience, including enterprise-scale application development.
• Experience building applications with Java, Python, React, JavaScript/TypeScript, REST APIs, or related full-stack technologies.
• Experience designing, developing, and optimizing database solutions using MongoDB, PostgreSQL, relational data models, indexing, and data integration patterns.
• Hands‑on experience with cloud-native architecture, preferably Azure, Kubernetes, containers, microservices, or serverless patterns.
• Hands‑on experience with AI-assisted software development or agentic coding tools and practices, including Claude Code, GitHub Copilot, code analysis, automated test generation, documentation support, and developer productivity workflows.
• Experience designing or integrating APIs, distributed systems, event-driven services, or enterprise integrations.
• Experience with CI/CD pipelines, DevOps or DevSecOps practices, Git‑based workflows, automated testing, and release processes.
• Experience applying secure coding, software quality, scalability, reliability, and maintainability practices.
• Experience working in Agile delivery environments with product, architecture, security, and operations partners.
• Bachelor’s degree in Computer Science, Engineering, Information Technology, or related field, or equivalent experience.

Responsibilities

• Design, develop, and maintain scalable full-stack applications using Java, Python, React, REST APIs, API-first architecture, MongoDB, and PostgreSQL.
• Build and enhance AI-enabled applications using LLMs, RAG patterns, agentic workflows, and multi-agent system design.
• Architect and deliver cloud-native solutions using Microsoft Azure, Kubernetes, containers, microservices, and event-driven systems.
• Lead technical design discussions and help define software architecture, engineering standards, and reusable development patterns.
• Improve CI/CD pipelines, DevSecOps practices, test automation, monitoring, and platform automation.
• Troubleshoot complex production and non-production issues; analyze root causes and recommend long-term solutions.
• Partner with cross-functional teams to deliver secure, compliant, reliable, and maintainable software in a regulated enterprise environment.
• Mentor engineers through code reviews, technical guidance, and shared best practices.

Skills

Java

Python

React

REST APIs

Cloud-native architecture

AI-assisted development

CI/CD

Agile methodologies

Security-minded

Education

Bachelor's degree in Computer Science, Engineering, IT, or related field

Tools

Azure

Kubernetes

Docker

MongoDB

PostgreSQL

Job description

McKesson is seeking a Sr. Software Developer to design, build, and scale modern software solutions across cloud-native platforms.

You will work on API-first services, secure and reliable applications, and AI-enabled engineering practices within a regulated enterprise environment. The role emphasizes cross-functional collaboration with engineering, architecture, product, and security teams, using Azure, Kubernetes, and event-driven patterns to advance CI/CD, testing, and automation.