1

Mainframe Developer Jobs in Ontario (NOW HIRING)

Quality Engineer I - Mainframe

Toronto, ON Β· Remote

CA$69K - CA$98K/yr

Mainframe testing (COBOL, DB2, IMS, CICS screens is a must) and API is good to have. * As a Test ... (DevOps tools and processes, source code management, Service Virtualization, monitoring tools, etc.

Use mainframe knowledge to understand existing programs, batch processing, data, interfaces, and business rules as part of modernization work. * Design and execute appropriate tests, investigate ...

Use mainframe knowledge to understand existing programs, batch processing, data, interfaces, and business rules as part of modernization work. * Design and execute appropriate tests, investigate ...

... with engineering, business, and technology stakeholders to define architecture and implementation strategies. * Support modernization and integration initiatives involving legacy mainframe systems.

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 ...

... mainframe, micro/mini systems, etc.) and multi-tiered open-standard technologies such as JSP ... Provide technical leadership for system analysts, developers and testers. * Knowledge of project ...

New

Develop and maintain technical solutions, ensuring adherence to engineering and architectural ... Mainframe experience: * COBOL, JCL, IMS DB/DC environment, IMS Databases, DB2, MQ, Endevor, CA7 ...

Showing results 21-40

Mainframe Developer information

See Ontario salary details

$29

$50

$69

How much do mainframe developer jobs pay per hour?

As of Sep 14, 2026, the average hourly pay for mainframe developer in Ontario is $50.63, according to ZipRecruiter salary data. Most workers in this role earn between $42.79 and $56.97 per hour, depending on experience, location, and employer.

What is a mainframe developer?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

What are the key skills and qualifications needed to thrive as a mainframe developer?

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.

What are some common challenges mainframe developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

What is the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

Is a mainframe developer a good career?

A mainframe 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 technologies like COBOL and JCL, but it may require ongoing learning of evolving mainframe tools and certifications. Overall, it can be a good career for those interested in enterprise computing and system stability.

Is a mainframe developer hard to learn?

Mainframe developers typically need to learn specialized programming languages like COBOL and understand mainframe environments, which can have a steep learning curve for beginners. However, with prior programming experience and training, acquiring the necessary skills is achievable, and many employers offer on-the-job training or certification programs.

Is mainframe developer still in demand?

Mainframe developers are still in demand in industries such as finance, insurance, and government, where legacy systems remain critical. They typically work with COBOL, JCL, and mainframe environments, and demand depends on the organization's reliance on mainframe technology and ongoing maintenance needs.

What are the most commonly searched types of Mainframe Developer jobs in Ontario?

The most popular types of Mainframe Developer jobs in Ontario are:

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

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

What cities in Ontario are hiring for Mainframe Developer jobs?

Cities in Ontario with the most Mainframe Developer job openings:

Infographic showing various Mainframe Developer job openings in Ontario as of September 2026, with employment types broken down into 62% Full Time, and 38% Contract. Highlights an 82% In-person, and 18% Remote job distribution, with an average salary of $105,312 per year, or $50.6 per hour.

Quality Engineer I - Mainframe

Toronto, ON β€’ Remote

CA$69K - CA$98K/yr

Full-time

Re-posted 2 days ago


Key responsibilities

  • Perform hands-on testing activities, including test design, creation, and process support within a functional area.

  • Conduct Mainframe testing (COBOL, DB2, IMS, CICS screens) and API testing as part of quality assurance efforts.

  • Implement and support test automation frameworks, including script development, execution, and integration into CI/CD pipelines.


Job description

Work Location:

Toronto, Ontario, Canada

Hours:

37.5

Line of Business:

Technology Solutions

Pay Details:

$69,700 - $98,400 CAD

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:

Job Description

Perform hands on more complex testing activities: test design, test creation and/or process support within a well-defined functional area to support the delivery of quality solutions by designing and automating tests and/or creating/enhancing automation frameworks.

Accountabilities

  • Hands on role focused on Mainframe and API testing. Mainframe testing (COBOL, DB2, IMS, CICS screens is a must) and API is good to have.
  • As a Test engineer for small complexity initiatives, accountable for implementing effective test strategies and plans, test design / development test case automation and test execution to achieve business outcomes.
  • Provides QE leadership, direction and feedback throughout the development and design process; provides test development / automation support to ensure that the quality of the intended solution is met.
  • Leverage strong knowledge to understand technical solutions to build optimized test approaches, inclusive of the tooling strategy
  • Strong knowledge of test data management to reuse automated test data provisioning capabilities
  • Effectively engineer and leverage tools and Engineering practices (DevOps tools and processes, source code management, Service Virtualization, monitoring tools, etc.)
  • Implement functional and/or non-functional automation frameworks (performance, readiness / reliability testing (ORT), accessibility, security) including script development and execution, and ensure automated tests are integrated into the Continuous Integration (CI), delivery, and testing (CI/CD/CT) pipelines
  • Play a key role in developing, documenting, and proactively identifying end-to-end test solution designs and early automation opportunities
  • Work collaboratively with the development team to define and validate user stories, acceptance criteria and Definition of Done (DoD) / Ready (DoR)
  • Apply the principles of behavior / Test Driven Development (BDD / TDD) and focus on value driven outcomes
  • Leads Proof of Concepts (POCs) to evaluate new technologies geared towards better, faster, more secure testing activities (such as Service Virtualization, DevOps, BDD, Test Data Management)
  • Adhere to enterprise frameworks or methodologies that relate to quality engineering activities
  • Ensure respective programs/ policies/practices are well managed, meets business needs, complies with internal and external requirements, and aligns with business priorities
  • Collaboratively engage with relevant stakeholders at all levels, both internal and external, to shift from finding defects to proactively preventing defects
  • Actively seek and support continuous improvement and automation opportunities within the quality engineering practice
  • Conduct meaningful analysis at the functional or enterprise level using data to draw conclusions, make recommendations, assess the effectiveness of programs/ policies/ practices
  • Identify opportunities to minimize cost, provide recommendations and/or deliver corresponding strategic solutions to support cost effectiveness and to enhance stakeholder experience
  • Conduct test assets reviews to ensure adherence to quality, standards compliance, reusability, and ease of maintenance
  • Monitor service, productivity and assess efficiency levels within own function and implement continuous process / performance improvements where opportunities exist
  • Lead / facilitate and/or implement actions / remediation plans to address performance / risk /governance issues
  • Actively manage relationships within and across various business lines, corporate and/or control functions and ensure alignment with enterprise and/or regulatory requirements
  • Protect the interests of the organization - identify and manage risks, and escalate nonstandard, high-risk activities as necessary
  • Keep abreast of emerging issues, trends, and evolving regulatory requirements and assess potential impacts
  • Maintain a culture of risk management and control, supported by effective processes in alignment with risk appetite
  • Participate fully as a member of the team, support a positive work environment that promotes service to the business, quality, innovation, and teamwork and ensure timely communication of issues/ points of interest
  • Provide thought leadership and/ or industry knowledge for quality engineering best practices and participate in knowledge transfer within the team and business unit
  • Keep current on emerging trends/ developments and grow knowledge of the business, related tools, and techniques
  • Participate in personal performance management and development activities, including cross training within own team
  • Keep others informed and up to date about the status / progress of projects and / or all relevant or useful information related to day-to-day activities
  • Actively mentors and enables team members by sharing knowledge and leveraging engineering best practices. Supports the team by providing guidance and proactively identifying and resolving issues Lead, motivate and develop relationships with internal and external business partners / stakeholders to develop productive working relationships
  • Contribute to a fair, positive and equitable environment that supports a diverse workforce
  • Act as a brand ambassador for your business area/function and the bank, both internally and/or externally

Experience and/or Education

  • BS degree in Computer Science or related Engineering discipline; or equivalent practical experience
  • 3-5 years of relevant experience

Additional Information

  • Advanced knowledge of specific domain and quality engineering frameworks, technology, tools, processes, and procedures
  • Advanced knowledge of coding practices, testing, and debugging to develop and maintain resilient automated test scripts; hands on experience writing automated scripts using industry standard frameworks
  • Strong debugging and problem-solving skills; investigates and analyzes potential solutions to problems
  • Perform complex testing automation autonomously
  • Deep knowledge of in scope TD business and systems, practices, business / organization, Bank standards
  • Strong knowledge in new / advanced techniques and approaches in testing and automation (e.g., BDD, Machine Learning, etc.)
  • Future focused- foresee issues and gaps and identifies industry trends
  • Collaborative team player and ability to play a leadership role in the team
  • Report to a Practice lead

#li-tech

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