Mainframe Capacity and Performance Specialist

10/30/2026

Address:

4100 Gordon Baker Road

Technology

Develops and implements IBM z/OS systems infrastructure & platform performance and capacity strategies for BMO to support anticipated business strategies and organizational growth. This includes working with middleware and related data collection and analysis tools, to help to optimize performance of BMO’s mainframe applications.

Understands current and future technical platform hardware, operating system, security, and system services layers. Ensures reliable and secure computing and communications capabilities to run the business software while enabling the lowest operational cost/highest availability options. Performs capacity workload modeling and availability analysis. Works with stakeholders and recommends infrastructure solutions based on engineering requirements.  Builds effective relationships with internal/external stakeholders.

• Breaks down strategic problems, and analyses data and information to provide insights and recommendations.
• Identify and resolve mainframe applications performance bottlenecks and issues in a timely manner.
• Collaborate with teams to improve application design and code for better performance
• Provides input into the planning and implementation of operational programs.
• Designs/engineers system-operating capacity (such as bandwidth, disk space, storage, and CPU utilization) to ensure high availability and performance of end-user applications and systems.

• Responsible for maintaining and improving overall system/technology performance; monitors production, outputs, and services to ensure that SLAs and other quality metrics are being met.
• Monitor and analyze performance metrics for mainframe applications & middleware.

• Utilize various reporting and visualization tools (including ITBI, IntelliMagic) to generate performance reports and make data-driven recommendations.
• Identifies and defines new process and/or system improvement opportunities.
• Evaluates and recommends emerging technologies to influence the design process.
• Identifies opportunities to strengthen the capability of the technology organization at BMO including sharing expertise to promote technical development, mentoring employees, building communities of practice and networks across technology.
• Stays abreast of industry technical and business trends technologies in mainframe, middleware and application performance through participation in professional associations, practice communities & individual learning.
• Focus is primarily on business/group within BMO; may have broader, enterprise-wide focus.
• Broader work or accountabilities may be assigned as needed.
• Document performance issues and solutions for future reference.

Requirements:

• 4-6 years experience in the IT industry with 1-3 years experience with an application performance focus including testing, tuning, analysis or measurement.
• Diploma or bachelor’s degree in computer science, Information Technology or a related field.
• Detail-oriented with excellent organizational and communication skills and the ability to influence direction.
• Working experience working with IBM  z/OS and some or all of JCL, CICS, Db2, VSAM RLS, MQ, WebSphere, and z/OS Connect.
• Working knowledge of mainframe tools and utilities, including some or all of RMFMON, Omegamon, Netview, zWIN, Dynatrace, IZPCA, IntelliMagic, ITBI.
• Data Analytics, AI and Machine Learning, Automation, Capacity Planning
• Working experience with MXG & SQL is a plus.
• Ability to apply knowledge of application performance tuning and optimization.
• Ability to work independently and quickly learn and apply new skills.
• Verbal & written communication skills - In-depth.
• Collaboration & team skills - In-depth.
• Analytical and problem-solving skills - In-depth.
• Influence skills - In-depth.
• Data driven decision making - In-depth.

$70,000.00 - $150,000.00

Salaried

The above represents BMO Financial Group’s pay range and type.

Salaries will vary based on factors such as location, skills, experience, education, and qualifications for the role, and may include a commission structure. Salaries for part-time roles will be pro-rated based on number of hours regularly worked. For commission roles, the salary listed above represents BMO Financial Group’s expected target for the first year in this position.

BMO Financial Group’s total compensation package will vary based on the pay type of the position and may include performance-based incentives, discretionary bonuses, as well as other perks and rewards. BMO also offers health insurance, tuition reimbursement, accident and life insurance, and retirement savings plans. To view more details of our benefits, please visit: https://jobs.bmo.com/global/en/Total-Rewards

About Us

At BMO we are driven by a shared Purpose: Boldly Grow the Good in business and life. It calls on us to create lasting, positive change for our customers, our communities and our people. By working together, innovating and pushing boundaries, we transform lives and businesses, and power economic growth around the world.

As a member of the BMO team you are valued, respected and heard, and you have more ways to grow and make an impact. We strive to help you make an impact from day one – for yourself and our customers. We’ll support you with the tools and resources you need to reach new milestones, as you help our customers reach theirs. From in-depth training and coaching, to manager support and network-building opportunities, we’ll help you gain valuable experience, and broaden your skillset.

To find out more visit us at https://jobs.bmo.com/ca/en.

BMO is committed to an inclusive, equitable and accessible workplace. By learning from each other’s differences, we gain strength through our people and our perspectives. Accommodations are available on request for candidates taking part in all aspects of the selection process. To request accommodation, please contact your recruiter.

Note to Recruiters: BMO does not accept unsolicited resumes from any source other than directly from a candidate. Any unsolicited resumes sent to BMO, directly or indirectly, will be considered BMO property. BMO will not pay a fee for any placement resulting from the receipt of an unsolicited resume. A recruiting agency must first have a valid, written and fully executed agency agreement contract for service to submit resumes.