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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.

As a P5 Staff Software Engineer on the modernization team, you will be a key technical leader driving the architecture, implementation, and evolution of our next-generation platform. You will work across multiple teams to design and deliver secure, scalable, and resilient systems on a modern cloud-native stack. In this role, you will set technical direction, mentor senior and mid-level engineers, and partner with architects, product, and business stakeholders to ensure we build the right solutions in the right way for long-term sustainability.

Our Tech Stack

Primary Skills:  C# / .NET, TypeScript, React, Postgres, RESTful APIs / GraphQL

Secondary Skills:  Kafka,  Git/version control, Terraform, CI/CD pipelines, Unit testing frameworks (xUnit, Jest)

Nice to Have: Azure cloud platform, Redis, Microservices architecture, MFE Architecture

AI & Tooling: Deep experience using AI-assisted development, testing, and observability tools, with the ability to define patterns and guardrails for responsible adoption across multiple teams.

What You'll Do

• Design and implement critical platform services and influence service-level architecture using C#, TypeScript, GraphQL, Kafka, and PostgreSQL.

• Partner with P4 Architects and the P6 Principal/Enterprise Architects to shape target architectures, reference implementations, and patterns for the platform.

• Provide technical leadership across multiple teams, ensuring solutions align with architectural standards, non-functional requirements, and long-term maintainability.

• Lead and decompose large, complex initiatives into incremental deliverables, enabling teams to deliver value iteratively while converging on strategic outcomes.

• Establish and champion engineering best practices, including automated testing, CI/CD quality gates, performance and reliability engineering, and secure-by-design principles.

• Define and advocate patterns for using AI-assisted tools in development, testing, and operations, and ensure those patterns are understood and adopted across teams.

• Collaborate closely with product management, delivery leadership, and business stakeholders to influence roadmaps, clarify tradeoffs, and ensure technical investments support business goals.

• Mentor and coach P3 and P4 engineers, helping them grow in system design, debugging, operational excellence, and cross-team collaboration.

• Identify systemic issues (technical debt, reliability risks, process gaps) and drive cross-team initiatives to address them in a durable, scalable way.

Minimum Qualifications:-

Typically 10+ years of software engineering experience, including several years in senior or staff-level roles leading complex systems.

About You

Technical skills:

• Expert-level proficiency with C#/.NET and strong experience with JavaScript/TypeScript in production environments.

• Deep experience designing and building distributed systems, microservices, and event-driven architectures using technologies such as Kafka.

• Strong expertise with relational databases (PostgreSQL preferred), including data modeling, performance tuning, and designing for scale and reliability.

• Proven track record of designing and implementing robust automated testing strategies (unit, integration, contract, end-to-end) and integrating them into CI/CD pipelines.

• Significant experience operating production systems, including observability (metrics, logging, tracing), incident response, and post-incident analysis.

• Experience with cloud platforms (Azure preferred) and infrastructure-as-code tools such as Terraform or ARM/Bicep.

• Ability to evaluate and introduce new technologies, libraries, and tools in a way that balances innovation with reliability and supportability.

Non-technical skills & leadership:

• Demonstrated ability to lead technical direction across multiple teams or domains, influencing without relying solely on positional authority.

• Strong communication and storytelling skills, able to articulate complex technical concepts and tradeoffs to engineers, product managers, and senior leaders.

• Comfortable making and driving decisions under ambiguity, including when there is no perfect option and tradeoffs must be explicitly managed.

• Proven ability to mentor and grow other engineers, creating leverage through teaching, pairing, design sessions, and clear feedback.

• Experience identifying systemic issues (architecture, process, or culture) and leading cross-team initiatives to address them in a sustainable way.

• Acts as a culture carrier for engineering excellence, collaboration, psychological safety, and continuous improvement.

Education & Experience

Degree in Computer Science, Software Engineering, or related field, or equivalent experience.

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

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 welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process. If you require accommodation please contact us by sending an email to Disability_Accommodation@McKesson.com.

Join us at McKesson!