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Mainframe System Programmer Jobs in Ontario (NOW HIRING)

... performance systems that underpin TD's customer data and regulatory compliance platforms We are seeking a skilled Software Engineer I with experience in Host/Mainframe technology. This ideal ...

... performance systems that underpin TD's customer data and regulatory compliance platforms We are seeking a skilled Software Engineer I with experience in Host/Mainframe technology. This ideal ...

We come to work every day with a common purpose: to contribute to a well-functioning housing system ... The ideal candidate will have solid programming and analytical skills and can also understand ...

New

PD Tool Specialist

Toronto, ON · Remote

CA$62K - CA$147K/yr

... for mainframe environments. This role requires deep technical expertise in z/OS systems, and ... Support z/OS application development and system programming activities. * Administer DB2, CICS, and ...

If you have an engineering mindset and a passion for deeply engaging with Journey partners to fully ... Plan, manage, and lead the delivery of system requirements in alignment with standards and ...

If you have an engineering mindset and a passion for deeply engaging with Journey partners to fully ... Plan, manage, and lead the delivery of system requirements in alignment with standards and ...

If you have an engineering mindset and a passion for deeply engaging with Journey partners to fully ... Plan, manage, and lead the delivery of system requirements in alignment with standards and ...

CA$70 - CA$75/hr

... programming concepts and languages, internet/intranet and emerging technologies. * Demonstrated ... mainframe, micro/mini systems, etc.) and multi-tiered open-standard technologies such as JSP ...

New

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Mainframe System Programmer information

See Ontario salary details

$40

$55

$64

How much do mainframe system programmer jobs pay per hour?

As of Jul 26, 2026, the average hourly pay for mainframe system programmer in Ontario is $55.25, according to ZipRecruiter salary data. Most workers in this role earn between $51.68 and $59.86 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Mainframe System Programmer, and why are they important?

To thrive as a Mainframe System Programmer, you need deep knowledge of mainframe operating systems (such as z/OS), programming languages like COBOL or Assembler, and a degree in computer science or a related field. Familiarity with mainframe tools (e.g., IBM ISPF, JCL, SMP/E) and certifications such as IBM Certified System Programmer are typically required. Analytical thinking, problem-solving, and effective communication are crucial soft skills for diagnosing issues and collaborating with IT teams. These skills are vital to ensure the stability, security, and efficiency of critical enterprise computing environments.

What are some common challenges Mainframe System Programmers face when supporting legacy systems?

Mainframe System Programmers often encounter challenges such as integrating modern applications with legacy mainframe environments, ensuring system security while maintaining uptime, and troubleshooting complex issues that span both old and new technologies. They may also face difficulties due to limited documentation or retiring expertise as experienced colleagues leave the workforce. Staying current with evolving mainframe tools and best practices helps address these challenges and keeps systems running smoothly.

What is the difference between Mainframe System Programmer vs Mainframe Application Developer?

AspectMainframe System ProgrammerMainframe Application Developer
Required CredentialsCertifications in mainframe systems, such as IBM Certified System ProgrammerProgramming certifications, often in COBOL, Java, or other languages
Work EnvironmentOperate primarily on mainframe hardware, focus on system setup and maintenanceDevelop and modify applications running on mainframes
Employer & Industry UsageUsed by organizations with large-scale legacy systems, banking, insuranceDevelops business applications for mainframe environments in similar industries

While both roles work within mainframe environments, Mainframe System Programmers focus on system setup, maintenance, and optimization, whereas Mainframe Application Developers concentrate on creating and updating applications that run on mainframes. Understanding these differences helps in choosing the right career path or job search focus.

What are mainframe system programmers?

Mainframe system programmers are IT professionals who specialize in installing, configuring, maintaining, and optimizing mainframe computer systems. They are responsible for the underlying software infrastructure, such as operating systems (like IBM z/OS), network configurations, and middleware. Their work ensures that mainframe environments run efficiently, securely, and with minimal downtime, supporting critical applications for large organizations. System programmers also troubleshoot complex issues and implement updates or enhancements as needed.
What are popular job titles related to Mainframe System Programmer jobs in Ontario? For Mainframe System Programmer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Mainframe System Programmer jobs in Ontario look for? The top searched job categories for Mainframe System Programmer jobs in Ontario are:
Infographic showing various Mainframe System Programmer job openings in Ontario as of July 2026, with employment types broken down into 10% Locum Tenens, 77% Full Time, 4% Part Time, 8% Contract, and 1% Summer. Highlights an 83% Physical, 6% Hybrid, and 11% Remote job distribution, with an average salary of $114,919 per year, or $55.2 per hour.
Software Engineer I

Software Engineer I

Td

London, ON

CA$69K - CA$98K/yr

Full-time

Posted 5 days ago


Job description

Work Location:

Toronto, Ontario, Canada

Hours:

37.5

Line of Business:

Technology Solutions

Pay Details:

$69,700 - $98,400 CADThis role is eligible for a discretionary variable compensation award that considers business and individual performance.

TD is committed to providing fair and equitable compensation opportunities to all colleagues. Growth opportunities and skill development are defining features of the colleague experience at TD. Our compensation policies and practices have been designed to allow colleagues to progress through the salary range over time as they progress in their role. The base pay actually offered may vary based upon the candidate's skills and experience, job-related knowledge, geographic location, and other specific business and organizational needs.

As a candidate, you are encouraged to ask compensation related questions and have an open dialogue with your recruiter who can provide you more specific details for this role.

Job Description:

Department Overview

The Core Platform Party1 Product Group is responsible for maintaining & developing foundational applications that support TD's customer book of record. These systems manage customer demographic and relationship data, including customer-to-account relationships, contact permissions, Do Not Solicit preferences, and regulatory compliance.

Position Overview:

TD's Core Platform Party1 Product Group is seeking a talented Software Engineer I to support mission-critical applications including CIF (CustomerLink) , PRTCL (Party API ) and others. This role offers the opportunity to work on scalable, secure, and high-performance systems that underpin TD's customer data and regulatory compliance platforms

We are seeking a skilled Software Engineer I with experience in Host/Mainframe technology. This ideal candidate will have strong development skills and experience working in Host environments. You will play a key role designing, developing, and optimizing Party1 applications while ensuring scalability, security, and performance. Candidate will be responsible for providing technical leadership within POD.

Job Details - What You'll Do

  • Contribute to the design and development of scalable enterprise applications.

  • Conduct root cause analysis and proactively present remediation options.

  • Collaborate with business stakeholders, development PODs, and technical teams to align solutions with application roadmaps.

  • Estimate timelines and effort for design and development tasks.

  • Identify risks and potential issues in solution approaches and use cases.

  • Ensure designs leverage reusable components and align with business requirements.

  • Participate actively in agile ceremonies, design discussions, and peer reviews.

  • Adhere to TD's internal policies, technology control standards, and regulatory guidelines.

  • Provide technical support for escalated incidents and outages.

  • Create and maintain design and solution artifacts.

  • Continuously identify and implement improvement opportunities.

Where You'll Work

Primarily On Site

Job Requirements - What You Need to Succeed

  • Undergraduate degree, Post Graduate degree or Technical Certificate

  • Strong academic background (e.g., computer science, engineering)

  • Graduate degree nice to have

  • Technical Skills

    • 2-3 Years of experience with Mainframe technology including Cobol, IMS, DB2, zOS and Endevor.

    • Strong proficiency in IMS and DB2 database technology

    • 2-3 years of development and end to end design experience

    • Proficient with SDLC knowledge

    • Architecture, Design and Development Experience

    • Hands- on experience with Host development tools and frameworks.

    • Hands-on experience with IMS and DB2, including SQL scripting.

Other Skills & Assets

  • Experience in JAVA, REST API, Oracle, SQL Server Database

  • Knowledge on Event Hub, Kafka or equivalent

  • Experience with Azure cloud environments

  • Familiar with observability tools like Datadog

  • Experience with Autosys for jobs scheduling

  • Experience working on Banking Domain Projects

  • Inspire a positive work environment and help champion quality, innovation, teamwork, and service to the business

  • Learn voraciously, stretch your thinking, share your knowledge, and educate others

  • Cultivate winning relationships by building trust with business and technology partners

  • Share our commitment to productivity, effectiveness, and operational efficiency

  • Embrace change and witness amazing things happen - from the inside

Who We Are:

TD is one of the world's leading global financial institutions and is the fifth largest bank in North America by branches/stores. Every day, we strive to make every interaction, product, and experience remarkably human and refreshingly simple for over 27 million households and businesses in Canada, the United States and around the world. More than 95,000 TD colleagues bring their skills, talent, and creativity to foster deeper relationships, ensure disciplined execution, and build a simpler, faster banking experience. TD is deeply committed to being a leader in client experience, that is why we believe that all colleagues, no matter where they work, are client facing. Together, we are reimagining what banking can be for our clients, colleagues and communities.

Our Total Rewards Package
Our Total Rewards package reflects the investments we make in our colleagues to help them and their families achieve their financial, physical, and mental well-being goals. Total Rewards at TD includes a base salary, variable compensation, and several other key plans such as health and well-being benefits, savings and retirement programs, paid time off, banking benefits and discounts, career development, and reward and recognition programs. Learn more

Additional Information:
We're delighted that you're considering building a career with TD. Through regular development conversations, training programs, and a competitive benefits plan, we're committed to providing the support our colleagues need to thrive both at work and at home.

Please be advised that this job opportunity is subject to provincial regulation for employment purposes. It is imperative to acknowledge that each province or territory within the jurisdiction of Canada may have its own set of regulations, requirements.


Colleague Development

If you're interested in a specific career path or are looking to build certain skills, we want to help you succeed. You'll have regular career, development, and performance conversations with your manager, as well as access to an online learning platform and a variety of mentoring programs to help you unlock future opportunities.

If you're passionate about helping clients and building deep, lasting relationships, TD offers diverse career paths where you can grow your expertise and make a meaningful impact.

We're committed to your success and foster a respectful workplace where diverse perspectives are valued, everyone has fair opportunities to grow, and you can unlock your full potential to achieve your career goals. Here at TD, we hire and develop the best.

Training & Onboarding
We will provide training and onboarding sessions to ensure that you've got everything you need to succeed in your new role.

Interview Process
We'll reach out to candidates of interest to schedule an interview. We do our best to communicate outcomes to all applicants by email or phone call.


Accommodation
Your accessibility is important to us. Please let us know if you'd like accommodations (including accessible meeting rooms, captioning for virtual interviews, etc.) to help us remove barriers so that you can participate throughout the interview process.
We look forward to hearing from you!

Language Requirement (Quebec only):

Sans Objet