Senior Mainframe Performance & Capacity Leader

BMO; Toronto; On-site; CAD 86,000 - 185,000; Full time

Benefits offered by this job

Health insurance

Tuition reimbursement

Accident and life insurance

Retirement savings plans

Job summary

BMO is seeking a Senior Mainframe Performance & Capacity Management Specialist to lead performance management for its enterprise mainframe environment and collaborate with cross-functional teams to ensure reliability and scalability. The role emphasizes data-driven analysis, capacity modeling, and proactive issue resolution in a 24x7x365 setting.

The ideal candidate will have extensive experience with mainframe performance management, production support, and strong communication skills to

Qualifications

• 7-12 years of experience supporting large-scale mainframe environments.
• Expert-level knowledge of Mainframe Performance Management.
• Strong experience with production support, IT operations, monitoring, incident management, service restoration, and maintaining mission-critical systems.
• Deep understanding of enterprise monitoring, logging, alerting, and operational support processes.
• Proven experience troubleshooting complex performance, capacity, and availability issues.
• Strong analytical, investigative, and problem-solving skills with the ability to translate data into actionable insights.
• Experience with operational support practices, concepts, and technologies gained through formal training and/or practical experience.
• Strong understanding of system dependencies, infrastructure, and operational processes.
• Excellent verbal and written communication skills with the ability to influence technical and business stakeholders.
• Strong collaboration and relationship management skills with a focus on cross-functional partnerships.
• Ability to manage ambiguity and navigate complex organizational environments.

Responsibilities

• Lead performance management activities across BMO's enterprise mainframe environment.
• Analyze system performance, identify trends, and proactively address potential capacity or performance concerns before they impact users.
• Utilize data-driven analysis and capacity modeling techniques to ensure environments remain scalable, resilient, and aligned with business growth.
• Investigate complex performance issues and apply creative, out-of-the-box thinking to identify root causes and implement sustainable solutions.
• Develop insights and recommendations through analysis of system metrics, utilization trends, and operational data.
• Understand and apply capacity modeling methodologies to support forecasting, strategic planning, and operational readiness.

Job description

BMO is seeking a Senior Mainframe Performance & Capacity Management Specialist to lead performance management for its enterprise mainframe environment and collaborate with cross-functional teams to ensure reliability and scalability. The role emphasizes data-driven analysis, capacity modeling, and proactive issue resolution in a 24x7x365 setting.

The ideal candidate will have extensive experience with mainframe performance management, production support, and strong communication skills to