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Senior Mainframe Developer Jobs in Toronto, ON (NOW HIRING)

Software Engineer III

Toronto, ON · On-site

CA$125K - CA$154K/yr

Regular interactions with senior members of the technology team will be required as well as ... Mainframe experience: * COBOL, JCL, IMS DB/DC environment, IMS Databases, DB2, MQ, Endevor, CA7 ...

Canadian Banking Engineering is looking for a senior Solution Architect to enable enterprise scale ... mainframe, transactional systems) and modern technologies (microservices, REST APIs, cloud ...

Senior Project Manager

Toronto, ON · On-site

CA$100K - CA$120K/yr

As a Senior Project Manager, you willbe responsible foroverseeing project planning, execution,and ... Science, Engineering or similar). * Experience managing or working on mainframe software ...

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

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

If you have an engineering mindset and a passion for deeply engaging with Journey partners to fully ... The ideal candidate brings a solid IT background-preferably in Mainframe-exceptional communication ...

Manager II, Business Analysis

Toronto, ON · On-site

CA$96K - CA$136K/yr

Operating in Agile routines, the Product Owner will align with senior management to follow a ... Advanced microservice and cloud patterns - understanding service mesh, chaos engineering, event ...

Showing results 21-35

Senior Mainframe Developer information

See Toronto, ON salary details

$28

$47

$68

How much do senior mainframe developer jobs pay per hour?

As of Aug 10, 2026, the average hourly pay for senior mainframe developer in Toronto, ON is $47.04, according to ZipRecruiter salary data. Most workers in this role earn between $40.15 and $53.91 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior mainframe developer, and why are they important?

To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.

What are some common challenges faced by senior mainframe developers when integrating legacy systems with modern technologies?

Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.

What is a senior mainframe developer?

Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.
What are the most commonly searched types of Mainframe Developer jobs in Toronto, ON? The most popular types of Mainframe Developer jobs in Toronto, ON are:
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Infographic showing various Senior Mainframe Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 74% Full Time, 12% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $97,846 per year, or $47 per hour.

Software Engineer III

Td

Toronto, ON • On-site

CA$125K - CA$154K/yr

Full-time

Medical, Retirement, PTO

Re-posted 28 days ago


Job description

Work Location:

Toronto, Ontario, Canada

Hours:

37.5

Line of Business:

Technology Solutions

Pay Details:

$125,500 - $154,000 CADThe pay details posted reflect a temporary market premium specific to this role that is reassessed annually.

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:

Leads and/or facilitates the creation of a comprehensive end-to-end solution as well as initial to final delivery estimations for all applications under the umbrella of the technology team. Overall accountability for the technical design and delivery of high to mid-level System Design Specifications (SDS) based on requirements from stakeholders.

Develop and maintain technical solutions, ensuring adherence to engineering and architectural design principles while meeting business requirements. Provide technical expertise with a focus on efficiency, reliability, scalability, and security; includes planning, evaluating, recommending, designing, operationalizing, and supporting solutions in compliance with enterprise and industry standards.

Ultimately, providing expert advice and lead in system / application administration, installation, configuration / provisioning, platform planning and design, integration and release / deployment management.

Breadth & Depth

Solutions will vary from small to application specific deliverables as part of large-scale, complex or enterprise projects. Regular interactions with senior members of the technology team will be required as well as collaboration with solution architect.

As this role requires deep technical and domain knowledge, experience in 1 or more of the following areas is required

  • Business domain knowledge
    • Debit Card and/or Credit Card
    • Card Payments including Authentication/Authorization
    • Retail Banking
    • Nice to have: ATM, POS, Digital channels, Call Centre
  • Ecosystem knowledge
  • Payment Networks - Interac, Visa
  • Global Payment Standards (Nice to have)
  • PCI (Payment Card Industry) standards on data handling, data encryption
  • EMV (EuroPay, MasterCard, Visa) standards on card chip configuration, personalization and scripting
  • CBA (Canada Banking Act) standards for card

Candidate with knowledge in multiple areas will be preferred.

Experience & Education

  • Undergraduate Bachelors Engineering Degree in Computer Science/IT or Graduate degree in Engineering streams or relevant work experience
  • 12+ years of mainframe technology experience handling design, development and delivery with developers,
  • 5+ years of Technology lead experience with exposure and involvement in large-scale or transformation projects requiring complex technology integration design

Preferred Qualifications

  • Mainframe experience:
    • COBOL, JCL, IMS DB/DC environment, IMS Databases, DB2, MQ, Endevor, CA7, JCL Tools such as ICEMAN, DFHSORT
    • Nice to have - SAS, Assembler, IBM Pervasive Encryption
  • Strength in developing effective relationships with different business units, portfolio and project managers, vendors.
  • Ability to present and make recommendations to senior management
  • Enthusiasm and willingness to foster a culture that encourages productivity, innovation, process improvement, teamwork and a high level of professionalism.

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