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. About the Organization This role is part of McKesson's Ontada technology division, which develops innovative technology and data solutions for oncology care. The iKnowMed G2 platform is a cornerstone of our provider technology portfolio and all supporting applications including ontadahealth portal, Mobile, practice Insights, Clinical Content mgmt. and Value Based Care measures enabling community oncology practices to deliver high-quality, patient-centered care. As Lead Software Engineer, you will have the opportunity to provide architecture advancing a platform that directly impacts patient outcomes and the future of oncology healthcare. Position Summary The Lead Software Engineer provides technical leadership and architecture guidance across multiple software engineering teams responsible for McKesson's iKnowMed G2 platform, including Ontada Health Portal, Practice Insights, Clinical Content Mgmt, and Value-Based Care solutions that support thousands of clinicians across the United States in delivering cancer care. Operating in a highly regulated healthcare environment, this role designs and architects next-generation products, frameworks, and cloud-native platforms built on modern microservices architectures leveraging Java, Databricks, Oracle, PostgreSQL, MongoDB, APIs, and event-driven integration patterns. The Lead Software Engineer owns and drives solution and platform architecture for secure, scalable, reliable, and high-performing systems, including API-led connectivity, cloud-native integrations, and data exchange across Ontada products with familiarity in healthcare interoperability standards such as HL7/FHIR and SMART on FHIR considered a plus. Partnering closely with Senior Technology Managers, Technology Directors, Product Management, and cross-functional stakeholders, to develop the technology strategy based on business objectives while championing innovation, engineering excellence, and operational scalability. The Lead Software Engineer remains deeply engaged in developing the POCs, technical problem-solving, establishes and drives architectural standards, influences technology decisions across initiatives, and helps advance intelligent product experiences through AI/ML, NLP, LLM-enabled workflows, Retrieval-Augmented Generation (RAG) patterns, evaluation, and governance capabilities. Success in this role is measured by the adoption of architectural standards, the reliability and scalability of the platforms and integration ecosystem delivered, and the ability to influence outcomes and elevate engineering excellence across the organization.

Key Responsibilities Architecture Leadership:

Define and drive the technology vision, architecture strategy, and modernization roadmap for enterprise platforms, leveraging cloud-native architectures, microservices, APIs, event-driven systems, and platform engineering practices.

Solution Design & Governance:

Lead architecture reviews, establish technology standards, and ensure solutions align with enterprise principles for scalability, security, reliability, performance, and maintainability.

Cloud & Platform Modernization:

Drive adoption of modern cloud platforms (Azure, AWS, GCP), containerization, Kubernetes, DevSecOps, and infrastructure-as-code to improve platform agility and operational excellence.

Enterprise Integration:

Architect secure and scalable integration solutions using REST APIs, messaging platforms, event-driven architectures, service buses, and healthcare interoperability standards where applicable.

Technology Strategy & Roadmaps:

Develop multi-year architecture roadmaps, evaluate emerging technologies, and guide investment decisions that align business objectives with long-term technology strategy.

Technical Leadership:

Provide architectural guidance across engineering teams, and foster engineering excellence through design reviews, best practices, and technical governance.

Innovation & Emerging Technologies:

Champion innovation through adoption of AI/GenAI, advanced analytics, automation, and modern engineering practices to accelerate business value and platform transformation.

Operational Excellence:

Promote reliability, security, performance optimization, and continuous improvement through architecture best practices and operational governance.

Stakeholder Engagement:

Partner with engineering, product, security, and business leaders to align technology solutions with organizational priorities and communicate architectural decisions to executive stakeholders.

Technology Management:

Evaluate technology platforms, cloud services, and strategic vendor partnerships to maximize business value, scalability, and operational efficiency.

Compliance & Risk Management:

Ensure architecture solutions meet regulatory, security, privacy, and compliance requirements, including healthcare standards and enterprise governance frameworks.

Organizational Impact:

Influence enterprise technology direction, drive digital transformation initiatives, and deliver measurable outcomes through scalable, secure, and innovative technology solutions. Drive AI adoption by delivering scalable LLM, NLP, and RAG solutions that accelerate business outcomes. Establish secure, compliant, and reliable AI operations through MLOps/LLMOps and responsible AI practices. Minimum Requirement Degree or equivalent and typically requires 10+ years of relevant experience. Less years required if has relevant Master's or Doctorate qualifications. Critical Skills 10+ years of software engineering experience, including 5+ years of architecture and technical leadership across complex, distributed systems. Deep expertise in Java, Spring Boot, microservices, cloud-native architecture, and large-scale enterprise platforms. Strong experience with REST APIs, API gateways, event-driven architectures, Kafka, messaging, and enterprise integration patterns. Hands-on expertise in Azure, AWS, or GCP, including Docker, Kubernetes, Infrastructure as Code, observability, and resiliency patterns. Proven track record designing and operating secure, scalable, highly available, multi-tenant applications with strong focus on performance, reliability, and operational excellence. Experience with DevSecOps, CI/CD, test automation, architecture governance, and engineering best practices. Strong knowledge of relational databases, caching, search technologies, and analytics platforms. Ability to lead architecture decisions, mentor engineering teams, and influence stakeholders through clear communication and technical leadership. Familiarity with AI/GenAI technologies including LLMs, Prompt Engineering, and RAG architectures. Knowledge of security, compliance, and regulated environments; healthcare interoperability (FHIR, HL7, SMART on FHIR) is a plus. Drive AI adoption by delivering scalable LLM, NLP, and RAG solutions that accelerate business outcomes. Establish secure, compliant, and reliable AI operations through MLOps/LLMOps and responsible AI practices.

Preferred Qualifications Advanced Credentials:

Master's degree in a relevant technical field (e.g., M.S. in Computer Science, Software Engineering).

Healthcare & Enterprise Experience:

Prior experience leading technology teams in healthcare IT, clinical software, or other highly regulated environments is strongly preferred. Experience modernizing legacy enterprise systems (e.g., monolith-to-microservices transformation, cloud migration) is a plus. Additional Skills Strong awareness of emerging trends in software engineering and cloud technologies, demonstrating a commitment to continuous learning and technical excellence. Experience managing relationships with third-party vendors and partners. This position offers the possibility of a hybrid work arrangement based on recent updates to our in-office/work from home model. If located in DFW area, the selected candidate may be expected to work on site at our Las Colinas office a minimum of two (2) days per week, with the remaining days worked remotely. Specific in office days may be designated according to team needs and business priorities. McKesson complies with all applicable U.S. immigration laws and regulations. The Company does not provide employer support or sponsorship for any immigration related employment benefit for this role. Applicants must be currently authorized to work in the United States on a fulltime basis without the need for employer support or sponsorship now or in the future. This includes having the legal right to work in the United States without the need for McKesson support or sponsorship for any immigration related employment authorization (e.g., H1B, O1, E3, H1B1, TN, F1 OPT, F1 STEM OPT, F1 CPT, etc.) now or in the future. If you will require McKesson to provide immigration support or sponsorship now or in the future . click apply for full job details