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Mainframes Developer Jobs in Ontario (NOW HIRING)

... Engineering or Software Testing using industry standard tools. * Strong knowledge of Core-Java concepts (OOP, collections, exception handling) * Experience in Mainframe testing using file-aid/Insync ...

As a Manager Engineering, you will lead technology teams in delivering secure, reliable, and user ... REST APIs, Mainframe technologies, Windows/SQL Server, Java, Apache Tomcat, Salesforce, GitHub ...

New

As a Manager Engineering, you will lead technology teams in delivering secure, reliable, and user ... REST APIs, Mainframe technologies, Windows/SQL Server, Java, Apache Tomcat, Salesforce, GitHub ...

New

Ability to analyse the construction of existing reports and reverse engineer table relationships ... Familiar with Mainframe ESP for job scheduling. * * Understanding of branched development - dev, qa ...

Contributes to the overall success of Client Management & Engagement Engineering ensuring specific ... Mainframe environment Experience with testing large data transformations and migrations at ...

Active Directory, Azure Active Directory / Entra ID, Windows, Unix/Linux, Databases, Mainframe ... Engineering, application support, or software development background. * Experience with on-premises ...

... DevOps for deployment, and Git repositories. Understanding and experience with Spring Framework ... have: mainframe development experience and enterprise architectural knowledge/experience ...

Integrate automated testing scripts and strategies with DevOps tools. * Leadership Skills: Coach ... Strong Mainframe and/or Hyperion Essbase (Cubes) knowledge and testing experience. Strong MS Excel ...

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Integrate automated testing scripts and strategies with DevOps tools. * Leadership Skills: Coach ... Strong Mainframe and/or Hyperion Essbase (Cubes) knowledge and testing experience. Strong MS Excel ...

New

Showing results 41-60

Mainframes Developer information

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

What are popular job titles related to Mainframes Developer jobs in Ontario?

For Mainframes Developer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Mainframes Developer jobs in Ontario look for?

The top searched job categories for Mainframes Developer jobs in Ontario are:

What cities in Ontario are hiring for Mainframes Developer jobs?

Cities in Ontario with the most Mainframes Developer job openings:

Infographic showing various Mainframes Developer job openings in Ontario as of August 2026, with employment types broken down into 75% Full Time, 12% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Lead Site Reliability Engineer

Royal Bank of Canada

Toronto, ON • On-site

Full-time

Posted 17 days ago


Job description

Job Description

What is the opportunity?

Join our Credit Technology team as a Lead Site Reliability Engineer, where you'll play a key role in drive operational excellence through technology, process optimization, and cross-functional collaboration for the Personal Credit SRE & Ops team. This exciting opportunity will challenge you to work with cutting-edge technologies, including AI and emerging innovations, and collaborate closely with development teams to deliver embedded SRE solutions. As a vital link between QE, DevOps, Development, Infrastructure, and Support teams, you'll leverage your strong technical skills to solve complex problems and drive success across multiple components and technologies. If you're passionate about tackling new challenges and developing innovative solutions, we invite you to join our team and take your career to the next level.

What will you do?

  • Act as one of the final escalation points for critical outages and lead 24/7 incident response with rapid resolution of customer-impacting issues
  • Lead strategic direction and continuous improvement initiatives across Credit Technology
  • Manage cross-functional teams and stakeholders to execute upgrade and operational change management
  • Oversee end-to-end reliability of the ecosystem (hardware, software, network) ensuring 99.9% availability
  • Generate performance metrics (SLOs/SLAs/SLIs) and maintain regulatory compliance and security standards
  • Serve as primary relationship owner for vendor services, maintenance, and internal technology teams
  • Identify, design, write and test automation procedures using AI, Ansible and other relevant technologies
  • Support applications running on many platforms including OpenShift and distributed systems
  • Implement Chaos Engineering experiments and Disaster Recovery procedures to test and validate system resilience and reliability
  • Implement monitoring and alerting, anomaly detection and reliability testing for applications in scope

What do you need to succeed?
To be successful in this role, you will need:


Must have:

  • 5-7 years of experience as a Site Reliability Engineer or a Cloud Developer
  • Proven leadership experience managing cross-functional teams and stakeholders
  • Good understanding of Kubernetes and Cloud working knowledge with experience and understanding of CICD pipeline and DevOps / Agile Methodology
  • Decent knowledge of the following SRE practices and technologies: Python, YAML, Shell scripting, OpenShift, Linux, MongoDB, Dynatrace, Prometheus, PagerDuty, Moog, Splunk, Elastic, Ansible, Grafana, Chaos Engineering, MQ, Kafka
  • Perform production support role, including off-hours support
  • Excellent communication skills

Nice-to-have

Experience in the context of SRE and/or Application Development, Test Automation teams

What's in it for you?

We thrive on the challenge to be our best, progressive thinking to keep growing, and working together to deliver trusted advice to help our clients thrive and communities prosper. We care about each other, reaching our potential, making a difference to our communities, and achieving success that is mutual.

  • A comprehensive Total Rewards Program including bonuses and flexible benefits, competitive compensation, commissions, and stock where applicable.
  • Leaders who support your development through coaching and managing opportunities.
  • Ability to make a difference and lasting impact
  • Work in a dynamic, collaborative, progressive, and high-performing team
  • A world-class training program in financial services
  • Flexible work/life balance options.
  • Opportunities to do challenging work.
  • Opportunities to take on progressively greater accountabilities.
  • Opportunities to building close relationships with clients.

Job Skills

Agile Methodology, Agile Methodology, Apache Kafka, Application Development, CI/CD, Collaboration, Cross-Functional Teamwork, Decision Making, DevOps, Dynatrace APM, Elastic Stack (ELK), GitHub, Grafana, Group Problem Solving, Incident Communications, IT Systems Integration, Linux, Mainframe Support, Organizational Leadership, Problem Solving, Production Support, Product Services, Red Hat Ansible, Red Hat OpenShift, Scrum (Agile) {+ 7 more}

Additional Job Details

Address:

RBC WATERPARK PLACE, 88 QUEENS QUAY W:TORONTO

City:

Toronto

Country:

Canada

Work hours/week:

37.5

Employment Type:

Full time

Platform:

TECHNOLOGY AND OPERATIONS

Job Type:

Regular

Pay Type:

Salaried

Posted Date:

2026-08-06

Application Deadline:

2026-08-27

Note: Applications will be accepted until 11:59 PM on the day prior to the application deadline date above

Our Employment Opportunities

At RBC, we are guided by living shared values of Client First, Integrity, Collaboration, Respect and Excellence and winning together as One RBC. We believe an inclusive workplace that has diverse perspectives is core to our continued growth as one of the largest and most successful banks in the world. Maintaining a workplace where our employees feel supported to perform at their best, effectively collaborate, drive innovation, and grow professionally helps to bring our Purpose to life and create value for our clients and communities. RBC strives to deliver this through policies and programs intended to foster a workplace based on respect, belonging and opportunity for all.

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Expand your limits and create a new future together at RBC. Find out how we use our passion and drive to enhance the well-being of our clients and communities at jobs.rbc.com.

RBC is presently inviting candidates to apply for this existing vacancy. Applying to this posting allows you to express your interest in this current career opportunity at RBC. Qualified applicants may be contacted to review their resume in more detail.

Employment Type: FULL_TIME