Unix Administrator jobs in Toronto, ON

10/30/2026

Address:

4100 Gordon Baker Road

Technology

Join BMO's IT Engineering & Operations team and play a key role in supporting and evolving our Digital Library suite of applications.

At BMO, we're building resilient, secure, and scalable technology platforms that power the bank's digital future. We're looking for a highly skilled Infrastructure Specialist who thrives in complex enterprise environments and enjoys solving challenging technical problems across Linux, Windows, middleware, networking, cloud, and automation technologies.

In this role, you will be responsible for designing, implementing, supporting, and optimizing critical infrastructure platforms while partnering closely with application teams, security specialists, vendors, and business stakeholders. You'll have the opportunity to work with modern infrastructure technologies, drive automation initiatives, strengthen platform reliability, and contribute to the continuous evolution of BMO's technology landscape.

What You'll Do

• Design, build, deploy, and maintain enterprise infrastructure solutions supporting critical Digital Library applications.
• Serve as a technical expert for Linux, Windows, middleware, clustering, networking, and virtualization technologies.
• Monitor platform health and proactively identify opportunities to improve stability, performance, and resiliency.
• Diagnose and resolve complex server, network, storage, and application infrastructure issues.
• Manage production releases, platform upgrades, patches, and vulnerability remediation activities.
• Implement and support high-availability and disaster recovery solutions.
• Collaborate with application development, security, architecture, and operations teams to deliver reliable technology solutions.
• Drive infrastructure automation and operational efficiency through scripting and Infrastructure-as-Code practices.
• Administer middleware platforms, including IBM WebSphere Application Server and related technologies.
• Participate in infrastructure modernization initiatives, cloud adoption, and Digital First transformation programs.
• Support production environments through scheduled maintenance, deployments, and on-call rotations.
• Ensure infrastructure solutions meet BMO security, compliance, risk management, and operational standards.

What Makes You Successful

You are a curious and technically strong infrastructure professional who enjoys working across multiple technology stacks. You have exceptional troubleshooting skills, a passion for continuous improvement, and the ability to balance operational stability with innovation.

You bring experience in:

Enterprise Infrastructure

• Red Hat Enterprise Linux (RHEL) administration and support
• Windows Server administration and troubleshooting
• Active Directory
• Networking fundamentals, routing, switching, and security
• Virtualization and virtual machine technologies
• Storage and high-availability solutions

Middleware & Application Platforms

• IBM WebSphere Application Server administration and support
• Enterprise middleware technologies
• Release management and production deployments
• System performance tuning and optimization

Automation & Modern Infrastructure

• Infrastructure as Code (IaC)
• Scripting and automation
• Cloud computing technologies
• Containerization technologies
• IT automation and Digital First initiatives
• Configuration management and continuous improvement practices

Security & Reliability

• Cybersecurity best practices
• Infrastructure vulnerability management
• Patch management and remediation
• Root cause analysis
• Disaster recovery and business continuity planning

Required Technical Expertise

Advanced Skills

• Red Hat Enterprise Linux (RHEL) Administration (3-5+ years)
• RHEL 8 Clustering (Pacemaker/Corosync)
• Windows Server 2016+ Administration & Troubleshooting
• Windows SMB Failover Clustering
• Active Directory
• Networking Fundamentals
• IBM WebSphere Application Server Administration & Support

Preferred Qualifications

• 5-7 years of enterprise infrastructure experience
• Post-secondary education in Computer Science, Information Technology, Engineering, or a related discipline
• Experience supporting highly available enterprise production environments
• Experience with cloud-enabled infrastructure and automation frameworks
• Strong analytical, troubleshooting, and problem-solving skills
• Excellent communication and stakeholder management abilities

Why Join BMO?

At BMO, you'll work alongside talented technology professionals in an environment that values innovation, collaboration, continuous learning, and customer-first thinking. You'll have the opportunity to influence enterprise-scale platforms, work with modern infrastructure technologies, and contribute to solutions that support millions of customers.

Additional Information

Hybrid Work Model: This role requires a minimum of 2 days per week in the office.

Operational Support: Participation in an on-call rotation is required. Occasional evening and weekend deployments and support activities are expected as part of maintaining critical production services.

If you're passionate about enterprise infrastructure, automation, platform reliability, and solving complex technical challenges, we'd love to hear from you.

$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.