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Mainframes Developer Jobs in Ontario (NOW HIRING)

Broadridge

Director, Software Engineering

Toronto, ON · On-site

The ideal candidate will have a proven track record of leading large-scale mainframe and ... Promote automation, CI/CD pipelines, DevOps practices, and agile methodologies. * Continuously ...

Td

Solutions Design IT Specialist

Toronto, ON · Remote

CA$96K - CA$136K/yr

We are seeking a SR Mainframe Developer / Solution Designer to support the design, development, modernization, and operational stability of Wealth / Investment Management applications. The role ...

United Airlines

Mainframe Delivery Manager

Toronto, ON · On-site

Key Responsibilities Lead end-to-end mainframe project delivery Oversee COBOL, JCL, DB2-based ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

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Mainframes Developer information

What does a mainframe developer do?

A mainframe developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They work in environments that require high reliability and security, and may also handle system updates, performance tuning, and integration with other systems.

What is mainframe developer salary?

The salary for a mainframe developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in COBOL, JCL, or mainframe environments may earn higher compensation. Many positions also offer benefits such as health insurance and retirement plans.

Can mainframe be replaced by AI?

Mainframes are large-scale computing systems used for critical enterprise applications, and while AI can automate certain tasks and improve efficiency, it does not replace the core functions of mainframes. Mainframe developers often work with legacy systems, COBOL programming, and security protocols, which require specialized skills that are not fully replaced by AI technologies.

Is mainframe still in demand?

Mainframes remain in demand for large enterprises such as banks, insurance companies, and government agencies that rely on their reliability, security, and processing power. Mainframe developers with skills in COBOL, JCL, and mainframe environments are sought after to maintain and upgrade legacy systems, though the overall demand has decreased as organizations adopt cloud and distributed computing. Certification and experience with mainframe tools can enhance job prospects in this specialized field.

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.

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:
Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Ontario as of June 2026, with employment types broken down into 26% Full Time, and 74% Contract. Highlights an 94% In-person, and 6% Hybrid job distribution.
Senior Technical Specialist - Mainframe Operating Systems

Senior Technical Specialist - Mainframe Operating Systems

Royal Bank of Canada

Toronto, ON

Full-time

Posted 23 days ago

Job description

Job Description

WHAT IS THE OPPORTUNITY?

As a Senior Technical Specialist you will work within the Mainframe Operating Systems team to install and support z/OS products. This team is responsible for providing support for the evaluation, installation, maintenance and trouble shooting of a suite of System Z operating system components and associated vendor products that run on all RBC Mainframe processors.

WHAT WILL YOU DO?

  • Install and support various z/OS mainframe products

  • Liaise with the various support teams in Production Mainframe Services, Mainframe Operating Systems group, application development groups, and any other clients of supported products.

  • Direct research, identify and make recommendations on exploitation of new feature / function of supported vendor software

  • Ensure products are kept at supported and current levels

  • Ensure that problems with products supported are dealt with in a timely fashion and resolved quickly

  • Develop criteria for and participate in the evaluation of 3rd party vendors and software

  • Provide expertise and software management and support skills for mainframe products.

WHAT DO YOU NEED TO SUCCEED?

Must have :

  • 10+ years of mainframe experience installing and supporting software products

  • Assembler coding experience

  • General key areas of knowledge should be : IBM TSO, ISPF, JCL, SDSF, IPCS Debugging and SMP/E experience

  • Specific skill sets to possess are knowledge in DVM, LDAP on z/OS , RACF, ICSF, USS

  • Familiarity with and strong adherence to change management processes.

  • Strong communication and interpersonal skills

  • A strong understanding of mainframe z/OS technology

  • Commitment to excellence in deliverables and support

  • Champion strong software management and technology currency.

Nice-to-have:

  • Knowledge of SSL/TLS and certificates

  • Strategic thinker with excellent interpersonal skills to work across functions and businesses

RBC is committed to supporting flexible work arrangements when and where available. Details to be discussed with Hiring Manager.

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

#LI-POST

#TECHPJ

Job Skills

CLIST (Programming Language), Communication, Group Problem Solving, IBM COBOL, IBM DB2 SQL, IBM Software, IBM z/OS, Installation and Maintenance, Interactive System Productivity Facility (ISPF), Java, JES2, Job Control Language (JCL), Mainframe Modernization, Mainframe Operating System, Node.js, Programming Languages, Python (Programming Language), Red Hat Ansible, RESTful Web Services, Rexx, SMP/E, Teamwork, Technical Product Support

Additional Job Details

Address:

RBC CENTRE, 155 WELLINGTON ST 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:

2026-05-20

Application Deadline:

2026-06-22

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

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