McKesson

Lead Data Scientist - AgenticAI

McKesson • $122K — $162K *
Mississauga, ON L4T 0A1In-Person
Healthcare
5 - 7 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Master's or Ph.D. in a relevant quantitative field (Computer Science, AI, ML, etc.)
  • 7-10+ years of experience in data science or advanced analytics with a focus on Generative AI
  • Track record of designing, building, and deploying production-grade ML solutions including LLMs
  • Strong programming skills in Python and experience with ML frameworks (PyTorch, TensorFlow)
  • Deep knowledge of ML algorithms, statistical modeling, and data structures
  • Experience with cloud platforms (preferably Azure) and MLOps practices
  • Excellent communication skills for diverse audiences, with a history of project leadership and mentorship

Responsibilities

  • Lead the entire lifecycle of Generative AI solutions from ideation to deployment
  • Develop scalable GenAI systems and intelligent workflows to enhance efficiencies
  • Promote best practices in prompt engineering and model evaluation
  • Apply advanced data science techniques to various healthcare use cases
  • Create tailored ML models for complex healthcare data challenges
  • Conduct exploratory data analysis and statistical analyses for actionable insights
  • Collaborate with engineering teams to implement and maintain ML solutions
  • Establish processes for model performance tracking and governance
  • Ensure scalable and compliant AI solutions adhering to enterprise standards
  • Guide ethical use of AI within the enterprise and mentor junior staff
  • Communicate findings and updates to technical and non-technical stakeholders

Benefits

  • Flexible in-office working environment (2 days a week in-office requirement)
  • Competitive compensation package with potential annual bonuses
  • Access to company-sponsored benefits programs, though specifics not listed
  • Opportunities for professional development and continual learning
Full Job Description
McKesson Corporation is seeking a highly skilled and innovative Lead Data Scientist with experience on Generative AI development. This role will lead the design, development, and deployment of cutting-edge ML & GenAI solutions, leveraging advanced machine learning techniques to solve complex healthcare challenges and drive business transformation.

Job Responsibilities
  • Lead the end-to-end lifecycle of Generative AI and agentic AI solutions, including ideation, research, prototyping, implementation, evaluation, deployment, and production support.
  • Architect and develop scalable GenAI systems such as LLM-based applications, Retrieval-Augmented Generation (RAG), AI agents, and intelligent automation workflows to improve decision-making, operational efficiency, and customer outcomes.
  • Drive adoption of best practices in prompt engineering, LLM evaluation, fine-tuning strategies, and secure model hosting where applicable.
  • Apply advanced data science and machine learning techniques across a wide range of use cases including predictive modeling, forecasting, classification, anomaly detection, recommendation systems, NLP, and GenAI-enabled analytics.
  • Develop custom ML models and analytical frameworks tailored to complex healthcare and enterprise data challenges.
  • Perform exploratory data analysis (EDA), feature engineering, and statistical analysis to generate actionable insights and guide solution design.
  • Collaborate with engineering and platform teams to deploy, monitor, and maintain ML and GenAI solutions in production environments using cloud-native and MLOps best practices.
  • Establish model performance tracking, drift detection, reliability monitoring, and continuous improvement processes for deployed models and AI agents.
  • Ensure solutions are scalable, cost-efficient, resilient, and aligned with enterprise architecture standards
  • Ensure strong model governance, documentation, and auditability across all ML and GenAI solutions.
  • Apply Responsible AI principles including explainability, transparency, data privacy, security, and regulatory compliance, particularly within healthcare contexts.
  • Provide guidance on safe, compliant, and ethical use of LLMs and agentic AI across enterprise use cases.
  • Work closely with business stakeholders and product managers to translate requirements into clear analytical problem statements, solution designs, and execution roadmaps.
  • Present technical solutions, insights, and progress updates to both technical and non-technical audiences, including senior leadership.
  • Mentor and guide junior data scientists and engineers, fostering a culture of technical excellence, innovation, and continuous learning.


Job Qualifications
  • Master's or Ph.D. in Computer Science, Artificial Intelligence, Machine Learning, Statistics, Data Science, or a related quantitative field.
  • 7 -10+ years of experience in data science or advanced analytics, with significant hands-on experience in Generative AI and LLM-based systems.
  • Proven experience designing, building, and deploying production-grade ML and GenAI solutions, including LLMs, RAG architectures, and AI-driven automation.
  • Strong proficiency in Python and modern ML frameworks such as PyTorch, TensorFlow, and/or Hugging Face.
  • Deep understanding of machine learning algorithms, statistical modeling, experimental design, and data structures.
  • Experience working with cloud platforms (Azure preferred; AWS/GCP acceptable) and MLOps practices.
  • Ability to clearly communicate complex technical concepts to diverse business and technical audiences.
  • Demonstrated leadership in driving projects, influencing stakeholders, and mentoring team members.


Working Conditions:
  • In office requirement, we are Flex and Connect with 2 days a week in office


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

$122,100 - $162,800

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.

About McKesson

McKesson Corporation provides medicines, pharmaceutical supplies, information and care management products and services across the healthcare industry. The Company operates in two segments. The McKesson Distribution Solutions segment delivers ethical drugs, medical-surgical supplies and equipment and health and beauty care products throughout North America. This segment also provides specialty pharmaceutical solutions for biotech and pharmaceutical manufacturers, sells financial, operational and clinical solutions for pharmacies (retail, hospital, long-term care) and provides consulting, outsourcing and other services. The McKesson Technology Solutions segment delivers enterprise-wide clinical, patient care, financial, supply chain, strategic management and software solutions. In July 2011, the Company acquired Portico Systems from Safeguard Scientifics, Inc. On March 25, 2012, it acquired the independent banner and franchise businesses of Katz Group Canada Inc. McKesson Distribution Solutions delivers pharmaceuticals to retail pharmacies and institutional providers like hospitals and health systems. They operate pharmaceutical distribution centers across the country, serving customers in all 50 states. They also deliver a comprehensive offering of health care products, technology, equipment and related services to the alternate site market, including physician offices, surgery centers, long-term care facilities and home care businesses across the country. McKesson is currently the largest pharmaceutical distributor in North America. McKesson also operates McKesson Canada and has an equity holding in Nadro, a leading distributor in Mexico.

McKesson Careers

Join McKesson, a leading global healthcare company, and be part of a team that is redefining the future of healthcare. With a variety of job opportunities available, McKesson is the perfect place to advance your career, whether you're a seasoned professional or just starting out. Work You’ll Do At McKesson, we are committed to improving care in every setting—one product, one partner, one patient at a time. We’re seeking talented professionals to join our team and contribute to a culture of innovation, diversity, and leadership. Our employees are driven by a deep sense of purpose and a desire for continuous growth and improvement. Empower Your Future in Healthcare With positions ranging from internships to leadership roles, McKesson offers unparalleled employment opportunities to develop your skills and advance your career. Our commitment to diversity training ensures that all team members have the opportunity to thrive. Join a team where your skills will be honed, your professional growth will be supported, and where you can genuinely see the difference you make in the lives of patients around the world. Innovative Work Environment McKesson is at the forefront of healthcare innovation. Our team is constantly exploring new ways to improve patient outcomes and streamline care processes. This commitment to innovation is what sets us apart and what makes McKesson an exciting place to work. Career Development and Benefits McKesson believes in nurturing the potential of its employees through robust career development programs and comprehensive benefits designed to support your life and well-being. From leadership training to health and wellness benefits, we ensure our team members are equipped to meet their professional and personal goals. Explore Job Opportunities Whether you’re looking for an internship to kickstart your career, or a senior position to utilize your extensive experience, McKesson offers a range of opportunities. Explore our open positions and find where you can make a difference at McKesson. Stay Connected Join Our Team Search for open positions that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to take the next step in their careers. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. Networking and Professional Growth At McKesson, networking and professional growth are part of our everyday environment. We encourage our employees to connect, share, and learn from each other to foster personal and professional development. Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding career opportunities that await you at McKesson. Join McKesson today and be part of a team that is dedicated to shaping the future of healthcare.
Learn more about McKesson
Size
58,000 employees
Market Cap
$53.7 billion
Industry
Pharmaceuticals & Biotech
Net Income
-$4.1 billion
Founded
1833
5 Year Trend
+5.9%
Revenue
$237.6 billion
NASDAQ
MCK
* Ladders Estimates

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