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Mainframe Developer Jobs in Ontario (NOW HIRING)

Pacer Group

Mainframe Developer Location: Toronto, ON Work Arrangement: Hybrid (2-3days WFO) Employment Type: Contract Domain: BFSI Duration:6-12 months Hourly rate :-CAD 45-47/hour Application Deadline: Sep ...

New

Smart IT Frame LLC

Mainframe Developer Location: Mississauga, ON (Hybrid) Mode of Hiring: Contract Mandatory Skills: Mainframe, DB2, COBOL, JCL, CICS, VSAM Summary : * We are seeking a skilled Mainframe Developer with ...

New

Td

Mainframe Developer

Toronto, ON · On-site

CA$81K - CA$115K/yr

The Senior Mainframe Developer is responsible for the design, development, modernization, and support of critical applications within Core Investment Management (Core IM). The role involves ...

United Airlines

Mainframe Developer

Toronto, ON · On-site

As a Senior Developer, you will be working in a development and support capacity on our core mainframe cards and transactions system. The core application is a large, sophisticated mainframe-based ...

CIBC US

Mainframe Developer

Toronto, ON · Hybrid

As a Mainframe Developer, you'll lead the planning, technical design, and development of complex, enterprise-scale applications. You'll assemble, implement, and maintain flexible solutions that ...

CIBC

Mainframe Developer

Toronto, ON · Hybrid

As a Mainframe Developer, you'll lead the planning, technical design, and development of complex, enterprise-scale applications. You'll assemble, implement, and maintain flexible solutions that ...

LearnQuest

Mainframe DevOps Expert (Remote)

Toronto, ON · Remote

We are seeking a highly skilled Mainframe DevOps Expert to join our team for an exciting short-term project. Key Responsibilities: As a Curriculum Development Specialist, your primary responsibility ...

Td

Mainframe Software Engineer II

Toronto, ON · On-site

CA$81K - CA$115K/yr

Must-Have Qualifications Strong engineering background delivering enterprise applications, including mainframe solutions, batch processing systems, online transaction processing, and service-enabled ...

Td

Software Engineer II (Mainframe)

Toronto, ON

CA$81K - CA$115K/yr

Strong engineering background delivering enterprise applications, including mainframe solutions, batch processing systems, online transaction processing, and service-enabled integrations. * 7+ years ...

LearnQuest

Mainframe Expert (Remote)

Toronto, ON · Remote

We are seeking a skilled Mainframe "File-Manager" Expert to join our dynamic team and contribute to the development of a comprehensive course. The ideal candidate will have in-depth expertise in File ...

Veriday Inc.

Lead DevOps Engineer

Toronto, ON · On-site

As a Lead DevOps Engineer , you will play a critical role in bridging the gap between development ... Lead the design and development of key features for the Helios CI/CD pipeline - VM and Mainframe ...

Veriday Inc

Lead DevOps Engineer

Toronto, ON · On-site

As a Lead DevOps Engineer, you will play a critical role in bridging the gap between development ... Lead the design and development of key features for the Helios CI/CD pipeline - VM and Mainframe ...

Veriday Inc.

Lead DevOps Engineer

Toronto, ON · Hybrid

As a Lead DevOps Engineer, you will play a critical role in bridging the gap between development ... Lead the design and development of key features for the Helios CI/CD pipeline - VM and Mainframe ...

Veriday Inc

Lead DevOps Engineer

Toronto, ON · On-site

Lead the design and development of key features for the Helios CI/CD pipeline - VM and Mainframe platforms * Consult with partner systems to develop integration strategies revolving around DevOps ...

Tjx

Principal Engineer

Mississauga, ON · On-site +1

CA$142K - CA$185K/yr

Lead the evolution of mainframe engineering and delivery practices to improve efficiency, stability, quality, and speed to value. * Partner with product, architecture, and cross-ART teams to design ...

TJX Companies

Principal Engineer

Mississauga, ON · On-site +1

CA$142K - CA$185K/yr

Lead the evolution of mainframe engineering and delivery practices to improve efficiency, stability, quality, and speed to value. * Partner with product, architecture, and cross-ART teams to design ...

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All JobsMainframe Developer JobsMainframe Developer Jobs in Ontario

Mainframe Developer information

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$29

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$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 are popular job titles related to Mainframe Developer jobs in Ontario?

For Mainframe Developer jobs in Ontario, the most frequently searched job titles 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:

What are popular job titles related to Mainframe Developer jobs in ON?

For Mainframe Developer jobs in ON, the most frequently searched job titles are:

Mainframe Developer jobs near you
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.

Mainframe Developer

Hybrid

Pacer Group
Electrical Equipment, Appliance, and Component Manufacturing • 11 - 50 employees
Learn more about Pacer Groupexternal

Full-time

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Job Title: Mainframe Developer

Location: Toronto, ON

Work Arrangement: Hybrid (2-3days WFO)

Employment Type: Contract

Domain: BFSI

Duration:6-12 months

Hourly rate :-CAD 45-47/hour

Application Deadline: Sep 10 , 2026

SKILLS REQUIRED

Experience Required: 6-8 Years

Mainframe DB2 - Application Development

Seeking a Mainframe Developer to support| maintain| and modernize critical mainframe applications. The role involves developing and enhancing enterprise systems| troubleshooting production issues| and participating in large-scale modernization initiatives involving cloud migration and legacy transformation.

Key Responsibilities:

Develop| maintain| and support mainframe applications and batch processes.

Analyze| troubleshoot| and resolve production issues while ensuring system stability and performance.

Work with business and technical teams to gather requirements and implement enhancements.

Support mainframe modernization initiatives and integration with distributed cloud platforms.

Participate in code reviews| testing| deployments| and release activities.

Create and maintain technical documentation and operational runbooks.

EEOC Compliance:

We are an equal opportunity employer, and all qualified applicants will receive consideration for employment.

DISCLAIMER

AI Usage Policy: Pacer Group uses AI to assist in screening applications. Final hiring decisions are made by human recruiters based on qualifications and experience.

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