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Senior Mainframe Developer Jobs in Ontario (NOW HIRING)

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 ...

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Senior Mainframe Developer information

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$29

$49

$71

How much do senior mainframe developer jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for senior mainframe developer in Ontario is $49.29, according to ZipRecruiter salary data. Most workers in this role earn between $42.07 and $56.49 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 Ontario? The most popular types of Mainframe Developer jobs in Ontario are:
What are popular job titles related to Senior Mainframe Developer jobs in Ontario? For Senior Mainframe Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Senior Mainframe Developer jobs in Ontario look for? The top searched job categories for Senior Mainframe Developer jobs in Ontario are:
What cities in Ontario are hiring for Senior Mainframe Developer jobs? Cities in Ontario with the most Senior Mainframe Developer job openings:
Infographic showing various Senior Mainframe Developer job openings in Ontario as of August 2026, with employment types broken down into 84% Full Time, 2% Part Time, and 14% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $102,528 per year, or $49.3 per hour.

Manager II, Business Analysis

Td

Toronto, ON • On-site

CA$96K - CA$136K/yr

Full-time

Re-posted 2 days ago


Job description

Work Location:

Toronto, Ontario, Canada

Hours:

37.5

Line of Business:

Enterprise Enabling Functions

Pay Details:

$96,900 - $136,800 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:

The Product Owner for Wire Payments is accountable to lead the modernization and maintenance of the bank's high-value payment rails (Fedwire, SWIFT, CHIPS, Lynx). Your goal is to maximize Straight-Through Processing rates, while navigating the complexity of mandatory regulatory upgrade and cross-boarder data standards.

Operating in Agile routines, the Product Owner will align with senior management to follow a product vision, creating and maintaining a prioritized product backlog, managing delivery blockers, continuously assessing customer feedback. The Product Owner I should always be considering how to maximize value, assessing how the product or the delivery process can be continuously improved, contributes to a positive work environment and ensures that work embodies the Agile principles of transparency, collaboration and engagement.

Job Description:

  • Wires Modernization - lead the migration to a new wires engine and decoupling rails into scalable, independent services, "Mainframe Monoliths" to microservices

  • Backlog prioritization - manage the lifecycle of a payment feature, from initiation and validation to clearing and final settlement

  • Regulatory and sanctions compliance - partner with Risk and Anti-Money Laundering teams to integrate real-time screening into payment flow without compromising latency

  • Resilience and scalability - define requirements for high-availability systems capable of processing trillions of dollar in daily volume, with 99.9999% uptime

  • Data lineage and reporting - ensure all payment data is captured for mandatory regulatory reporting and internal liquidity management

  • Technical and domain expertise:

  • Deep expertise in Fedwire, SWIFT and CHIPS

  • Transitioning from legacy MT to ISO 20022 schemas

  • Understanding of real-time gross settlement and net settlement cycles

  • Practical application of Travel Rule requirements and Anti-Money Laundering triggers

  • Experience with APIs and Cloud-native payment engines

Required Qualifications & Experience:

  • Undergraduate degree and / or product certificate

  • 7+ years relevant experience

  • 3+ years Product Owner or Agile related delivery experience

  • Expertise in Fedwire, SWIFT and CHIPS

Nice to Have:

  • Data-driven intelligent payments - ISO 20022 data monetization , AI driven fraud detection, predictive liquidity analytics

  • Emerging stands & future tech - such as Central Bank Digital Currency, Reatil-Time Rail

  • Experience in G-SIB - navigating hybrid structure to balance waterfall style executive oversight with agile ways of working for teams

  • Advanced microservice and cloud patterns - understanding service mesh, chaos engineering, event sourcing

  • Certified Scrum Product Owner (CSPO) certification and project management experience considered an asset

  • Scaled Agile Framework (SAFe) certifications or experience operating in scaled agile delivery considered an asset

Who We Are:

TD Securities offers a wide range of capital markets products and services to corporate, government, and institutional clients who choose us for our innovation, execution, and experience. With more than 6,500 professionals operating out of 40 cities across the globe, we strive to make every interaction, product and experience remarkably human and refreshingly simple. Our services include underwriting and distributing new issues, providing trusted advice and industry-leading insight, extending access to global markets, and delivering integrated transaction banking solutions. In 2023, we acquired Cowen Inc., offering our clients access to a premier U.S. equities business and highly-diverse equity research franchise, while growing our strong, diversified investment bank.

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