Enter a job title or keyword

Sr Systems Administrator RadiationImaging

McKesson


Job Location:

Mississauga - Canada

Monthly Salary: $ 99100 - 132100
Posted: 30 August 2026 (15 hours ago)
Application Deadline: 27 November 2026
Vacancies: 1 Vacancy

Job Summary

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 tomorrows health today we want to hear from you.

Senior Systems Administrator Radiation Oncology Applications
About the Role

McKesson is seeking a Senior Systems Administrator Radiation Oncology Applications to serve as a critical technology leader supporting Radiation Oncology platforms across the enterprise. This role is responsible for driving the stability performance governance and continuous evolution of clinical application ecosystems that enable high-quality patient care and operational excellence.

The successful candidate will provide technical leadership operational oversight and strategic guidance for key Radiation Oncology applications while partnering closely with clinical operational and technology stakeholders. This individual will play an instrumental role in ensuring technology solutions align with business objectives regulatory requirements and organizational priorities.

This position requires a strong combination of healthcare application expertise systems administration experience stakeholder engagement and operational leadership within complex healthcare environments.

What Youll Do
Platform Strategy & Optimization
  • Drive the administration support and continuous improvement of Radiation Oncology applications including MOSAIQ ARIA and Eclipse.
  • Develop and execute application roadmaps that support organizational goals clinical requirements and technology modernization initiatives.
  • Evaluate opportunities to enhance platform performance scalability reliability and user experience.
Application Delivery & Operations
  • Lead application lifecycle activities including implementation configuration upgrades patching maintenance and system optimization.
  • Ensure application environments are stable secure and aligned with enterprise technology standards.
  • Oversee incident management root cause analysis problem resolution and service restoration activities for mission-critical clinical systems.
  • Establish and maintain operational procedures documentation and support standards.
Stakeholder Partnership
  • Collaborate with clinical leaders operational teams business stakeholders and technology partners to understand requirements and deliver effective solutions.
  • Translate complex business and clinical needs into scalable technology capabilities.
  • Serve as a trusted advisor for application-related initiatives enhancements and operational improvements.
Governance Risk & Compliance
  • Ensure compliance with organizational policies regulatory requirements cybersecurity standards and healthcare industry best practices.
  • Identify operational risks and develop mitigation strategies that support business continuity and patient care delivery.
  • Support change management activities and maintain governance processes for application environments.
Vendor & Service Management
  • Partner with vendors and third-party providers to manage support relationships issue resolution upgrades and product enhancements.
  • Monitor service performance and drive accountability through established operational metrics and service level objectives.
Continuous Improvement & Leadership
  • Analyze platform performance metrics to identify trends opportunities and areas for improvement.
  • Contribute to strategic planning efforts focused on application modernization automation and operational efficiency.
  • Provide technical leadership and mentorship across cross-functional teams supporting Radiation Oncology technologies.
Minimum Requirements
  • Bachelors degree in Information Technology Computer Science Healthcare Informatics Engineering or a related field or equivalent professional experience.
  • 7 years of experience supporting administering implementing or managing enterprise healthcare applications clinical systems or healthcare technology platforms.
  • Hands-on experience supporting Radiation Oncology applications including MOSAIQ ARIA and/or Eclipse.
  • Experience configuring maintaining upgrading and supporting healthcare application environments.
  • Strong knowledge of Microsoft Windows Server Microsoft SQL Server and Citrix technologies.
  • Experience leading application support implementation systems administration or operational improvement initiatives.
  • Demonstrated success collaborating with clinical business vendor and technology stakeholders.
Critical Skills & Competencies
Technical Expertise
  • Radiation Oncology application administration and support
  • Clinical systems operations and lifecycle management
  • Microsoft Windows Server environments
  • Microsoft SQL Server administration and troubleshooting
  • Citrix infrastructure and virtualization technologies
  • System monitoring performance tuning and optimization
Healthcare Technology
  • Radiation Oncology workflows and clinical operations
  • Healthcare application integrations and interoperability
  • Healthcare technology standards and regulatory compliance
  • Application security availability and reliability best practices
Operational Excellence
  • Incident problem and change management
  • IT Service Management (ITSM) processes
  • Vendor and partner management
  • Governance risk management and operational controls
  • Continuous improvement and service optimization
Leadership & Communication
  • Cross-functional collaboration and stakeholder management
  • Strategic thinking and problem-solving
  • Executive-level communication and presentation skills
  • Ability to influence decisions and drive outcomes across diverse teams

Work Model / Physical RequirementsWe 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 McKessons 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 pleaseclick here.

Our Base Pay Range for this position

$99100 - $132100

McKesson has become aware of online recruiting-related scams in which individuals who are not affiliated with or authorized by McKesson are using McKessons (or affiliated entities like CoverMyMeds or RxCrossroads) name in fraudulent emails job postings or social media 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: .

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 McKessons full Equal Employment Opportunity policies visit our Equal Employment Opportunity page.

McKesson is committed to being an Equal Employment Opportunity Employer and offers opportunities to all job seekers including job seekers with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment please contact us by sending an email to (United States) or (Canada) . Resumes or CVs submitted to this email box will not be accepted.

Join us at McKesson!


Required Experience:

Senior IC


About Company

Company Logo

McKesson is the leading healthcare company for wholesale medical supplies & equipment, pharmaceutical distribution, and healthcare technology solutions. McKesson is the central nervous system of health care. At any given moment, in any given minute, we simultaneously execute thousands ... View more

View Profile View Profile