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Added 1 day ago
AV
Controller
Amplitude Ventures
Toronto, ON
- Full-time
…control function of the studio, and acting as the finance and operations project lead who stands up the finance function inside each newly created company. You will also support broader…
Added 1 day ago
BH
Sr. Services Applications Specialist - Upstream Chemical
Baker Hughes
Calgary, AB
- Full-time
…Internal Audit function partners with the business to strengthen governance, enhance risk management, and improve operational performance through innovative assurance and advisory services.…
Added 1 day ago
CG
Sr. Manager, Global Payroll
Calian Group
Canada
- Full-time
Partner with People Technology, HR Operations, Finance, and IT to assess, implement, and optimize payroll technologies, integrations, automation, reporting, and data quality.
Added 1 day ago
PR
Sr Lead-IT Infrastructure Ops (Associate Manager)
Peel Regional Police
Brampton, ON
- $165,396 to $179,322 CAD / year
- Full-time
As a Senior Lead-IT Infrastructure Operations within our ITS Infra and Data Centre Operations department, you will be responsible for directing the day-to-day operational delivery of all…
Added 2 days ago
M
Sr. Manager, Collaboration & Content
McKesson
Mississauga, ON
- Full-time
…ecosystem and enterprise content platforms. In this role, you will lead the engineering, strategy, governance and continuous improvement of Microsoft 365 services, enterprise content…
Added 2 days ago
S
Sr. Business Systems Analyst
Slalom
Vancouver, BC · Greater Vancouver Metropolitan Area
- Full-time
Establish and enforce configuration governance, including standards, naming conventions, environment strategy, change control, and release management. Lead impact analysis for scope and…
Added 3 days ago
Sr. Manager, SIOP and Planning (Sales, Inventory, Operations Planning)
L3Harris Technologies
ON · Waterdown, ON
Provide strategic leadership and governance for the end-to-end Sales, Inventory and Operations Planning (SIOP) process, aligning demand, supply, capacity, inventory investment, customer…
Added 4 days ago
Sr. Technical Product Manager - Platform Services
Acuity Inc.
Thornhill, ON
Acuity Inc. is based in Atlanta, Georgia, with operations across North America, Europe and Asia. The Company is powered by approximately 13,000 dedicated and talented associates. Visit us…
Added 4 days ago
OI
Systems Designer Sr
Orthosoft Inc.
Montreal, QC
- Other
Lead AI, automation, and process optimization initiatives from concept through deployment.
Added 4 days ago
T
Wealth Operations Automation Intern / Co-Op (Winter 2027)
TD
Toronto, ON
- Full-time
…Chassis team is responsible to support transformation with Wealth Operations by using automation tools, various programming techniques, act as consultants and oversee if with the proper…
Added 5 days ago
V
Specialist - Project Planning & Integration
Vale
Canada
- Full-time
…studies and projects, ensuring the development, integration, and governance of study schedules and project execution schedules throughout the project lifecycle. As the planning discipline…
Added 5 days ago
V
Sr Specialist - Project Estimating & Cost Control
Vale
Canada
- Full-time
From utensils to cellphones to satellites, our operations simplify daily life and enhance connectivity. Our metals are integral to life-saving medical equipment and the electric vehicles…
Added 8 days ago
V
Spec, Proj Technical Integr
Vale
Canada
- Full-time
…studies and projects, ensuring the development, integration, and governance of study schedules and project execution schedules throughout the project lifecycle. As the planning discipline…
Added 8 days ago
PI
Senior Product Manager, Fund Management
Purpose Investments
Toronto, ON
- Full-time
…decide what gets built and in what order, working directly with operations, engineering, data, and compliance to solve the problems that matter most. You will lead from the front – not as a…
Added 8 days ago
RH
Sr. Finance Manager
Robert Half
Cambridge, ON · Greater Kitchener-Cambridge-Waterloo Metropolitan Area
- Full-time
Drive process enhancements by introducing automation, technology, and AI-based solutions that improve efficiency and data accuracy.
Added 8 days ago
OC
Senior OpenShift Virtualization (OCP-V) Engineer
OPTICCA CONSULTING INC.
Quebec, QC
- Full-time
Automate platform configuration, VM provisioning, migration, validation, compliance, and day-2 operations using Ansible Automation Platform, GitOps, Terraform, Helm, APIs, YAML, and CI/CD…
Added 9 days ago
V
Sr. Manager of Projects Controls - Canada
Vale
Canada
- Full-time
From utensils to cellphones to satellites, our operations simplify daily life and enhance connectivity. Our metals are integral to life-saving medical equipment and the electric vehicles…
Added 9 days ago
M
Sr. Platform Reliability/L3 Support
McKesson
Mississauga, ON
- Full-time
…combines infrastructure expertise with hands-on production operations, Level 3 troubleshooting, incident response, monitoring, and platform reliability. The successful candidate will lead…
Added 9 days ago
S
Data Program Delivery Lead - Data Solution Owner (Canada)
Slalom
Toronto, ON · Greater Toronto Area, Canada
- Full-time
We are seeking an experienced Data-Oriented Program Delivery Leader, to lead the development and implementation of clients’ data products, data ecosystems, and data transformation…
Added 9 days ago
S
Data Program Delivery Lead - Data Solution Owner (Canada)
Slalom
Vancouver, BC · Greater Vancouver Metropolitan Area
- Full-time
We are seeking an experienced Data-Oriented Program Delivery Leader, to lead the development and implementation of clients’ data products, data ecosystems, and data transformation…
Added 9 days ago
S
Data Program Delivery Lead - Data Solution Owner (Canada)
Slalom
Calgary, AB
- Full-time
We are seeking an experienced Data-Oriented Program Delivery Leader, to lead the development and implementation of clients’ data products, data ecosystems, and data transformation…
Added 9 days ago
FI
Sr. Project/Program Manager - Prime Brokerage
FP Inc.
Toronto, ON
- $120 to $130 CAD / hour
- Contract
Lead end-to-end delivery of Prime Brokerage workstreams, from initiation and business case through build, testing, cutover and hypercare.
Added 9 days ago
HC
Engagement Manager
Havas CX Canada
Toronto, ON
- Full-time
…modern marketing ecosystems. Working at the intersection of data, technology, and customer experience, we partner closely with clients to deliver CRM strategy, marketing operations, and…
Added 9 days ago
Sr. Specialist, Exploration Geological Information Systems and Database - Canada
AngloGold Ashanti
Vancouver, BC
We are seeking a Sr. Specialist, Exploration Geological Information Systems and Database (Canada) to lead and optimize our geological, geochemical, and spatial data infrastructure within…
Added 9 days ago
OT
Sr. Product Manager - Technical
Open Text Corporation
Waterloo, ON
- Other
…solutions, including Content Intelligence, WebReports, Process Automation, Document Control and associated platform services. The successful candidate will work across Product Management,…

McKesson

Sr. Platform Reliability/L3 Support

Mississauga, ON, Canada

$99,100 - $132,100 · Full-time

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Job details

Pay: $99,100 - $132,100
Job type: Full-time
Apply by: Nov 12, 2026
Experience: 7+ years of experience in infrastructure engineering, production support, site reliability engineering, platform operations, or related technical roles.
Posting language: English
Posted: Oct 15, 2026

Original job description

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 Role

McKesson is seeking a Sr. Platform Reliability/L3 Support to support and enhance critical enterprise technology platforms across cloud and hybrid environments, with a primary focus on the platforms behind McKesson's AI-powered digital agents: Sierra Agent OS, Five9, and the integrations and APIs that connect them to our CRM, order, and identity systems. This role combines infrastructure expertise with hands-on production operations, Level 3 troubleshooting, incident response, monitoring, and platform reliability. The successful candidate will lead complex investigations, drive root-cause analysis, improve operational resilience, and collaborate across engineering, platform, and business teams.

This position is ideal for a technically strong professional who thrives in high-availability environments, enjoys solving complex production issues, and leverages AI-enabled tools to improve operational efficiency, reporting, and service delivery.

This role sits on McKesson's Contact Center AI team, which is using AI and digital agent capabilities to transform and improve the end-to-end customer journey across voice, chat, and email for McKesson's businesses. The team designs, builds, and runs digital agents on Sierra Agent OS and connects them to the contact center and enterprise systems around them. When an agent, an integration, or the telephony path behind it has a problem, this role is the senior escalation point above the service desk: find the cause, restore service, and make sure it does not happen again. Sierra is new to the market, so prior Sierra experience is a plus, not a requirement.

What You'll Do

Provide hands-on senior production support and platform operations for enterprise platforms, serving as the escalation point for complex Level 3 incidents.
Lead troubleshooting, root-cause analysis, problem management, and remediation activities to improve platform stability and reliability.
Monitor platform performance, availability, capacity, and service health using observability and monitoring tools.
Support and administer cloud, hybrid, and on-premises infrastructure environments while maintaining security and compliance standards.
Collaborate with engineering teams to automate operational processes and improve deployment, monitoring, and recovery capabilities.
Manage infrastructure governance, access controls, operational standards, and platform documentation.
Support contact center and CCaaS technologies, including incident response, platform administration, and service optimization where applicable.
Act as the L3 escalation point for production issues affecting live digital agents (agent misbehavior, failed API or tool calls, telephony and transfer failures, authentication and access problems), working directly with the agent and integration developers and with Sierra and Five9 vendor support, and lead the post-incident review for each significant incident.
Own alerting and triage for the digital agent platform: tune alerts, keep the triage runbooks the service desk follows current, and maintain the operational dashboards (availability, containment, latency, error rates) that the team and leadership use.
Manage platform access and user lifecycle for the agent tooling (AD groups, SCIM/Okta provisioning, workspace roles) in line with McKesson security and audit requirements.
Use AI-assisted tools to analyze performance and SLA data, automate routine reporting, summarize incidents, develop governance content, and accelerate root-cause investigations.

Basic Requirements

7+ years of experience in infrastructure engineering, production support, site reliability engineering, platform operations, or related technical roles.
Experience providing Level 3 (L3) support and troubleshooting for complex enterprise production environments.
Strong experience with incident management, problem management, and root-cause analysis methodologies.
Experience supporting cloud platforms and enterprise infrastructure technologies.
Experience troubleshooting API-based integrations in production: reading logs and traces, isolating a failure to the right system, and working the issue with internal teams and vendor support.
Knowledge of monitoring, observability, alerting, and performance management tools.
Experience with infrastructure automation and scripting tools such as Terraform, Ansible, Puppet, or similar technologies.
Strong understanding of infrastructure security, access management, and operational governance.
Bachelor's degree or equivalent combination of education and relevant experience.

Preferred Skills / Experience

Experience supporting Contact Center as a Service (CCaaS) platforms such as Five9, or conversational AI and virtual agent platforms such as Sierra, Genesys, or Amazon Connect, in production.
Experience with Kubernetes, container platforms, and cloud-native technologies.
Knowledge of network infrastructure, Software-Defined Networking (SDN), and enterprise storage solutions.
Experience with DevOps, SRE, platform engineering, or reliability engineering practices.
Experience within healthcare, life sciences, or other highly regulated industries.
Experience developing APIs and platform integrations.
Demonstrated ability to mentor team members and influence technical decisions.
Experience leveraging AI tools to improve operational processes, reporting, analytics, and incident management workflows.
Experience with identity and access tooling (Okta, SCIM, Active Directory groups, SailPoint) for platform access governance.

Experience routing alerts into collaboration and ticketing tools (e.g., Microsoft Teams, ServiceNow) and maintaining triage runbooks for a service desk

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

$99,100 - $132,100

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 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) Disability_Accommodation@McKesson.com or (Canada) Accessibility@mckesson.ca. Resumes or CVs submitted to this email box will not be accepted.

Join us at McKesson!

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More about this job

Responsibilities

This role involves providing senior-level production support and platform operations for enterprise technology, acting as the primary escalation point for complex incidents. You will lead root-cause analysis, manage platform reliability, and collaborate with engineering teams to automate operational processes and improve service delivery.

Requirements

Candidates must have at least 7 years of experience in infrastructure engineering, production support, or site reliability engineering. A bachelor's degree or equivalent experience is required, along with strong skills in incident management, API troubleshooting, and infrastructure automation.

Skills

Infrastructure engineering
Production support
Site reliability engineering
Incident management
Root-cause analysis
Cloud platforms
API integrations
Observability
Terraform
Ansible
Puppet
Contact center technologies
CCaaS
Conversational AI
Identity and access management
Scripting

Benefits

Annual bonus
Long-term incentive opportunities

Visa sponsorship

Not detected in the job text

Keywords

Sierra Agent OS
Five9
CRM
API
Cloud
Hybrid infrastructure
SRE
Incident response
Observability
Terraform
Ansible
Puppet
CCaaS
Conversational AI
Kubernetes
Container platforms
SDN
Okta
SCIM
Active Directory
SailPoint
ServiceNow
Microsoft Teams
Platform reliability
Operational governance
Healthcare
Digital agents
Troubleshooting
Performance management
Access control

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