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Mainframe Developer Jobs in Ontario (NOW HIRING)

Td

Quality Engineer I - Mainframe

Toronto, ON · 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.

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 ...

Royal Bank of Canada

Full Stack Developer

Toronto, ON · On-site

This role spans both modern full-stack development and Mainframe-based payment processing, offering ... senior developers * Develop and maintain enterprise-grade Spring Boot microservices, React ...

Scotiabank

Quality Engineer(Mainframe)

Toronto, ON · Hybrid

... programming languages (Python, Javascript, Java), testing frameworks, and utilities Experience with Customer data and Customer systems, preferably in Mainframe environment Experience with testing ...

Td

Software Engineer III

Toronto, ON · On-site

CA$125K - CA$154K/yr

Design, develop, test, and maintain applications on Mainframe (e.g., COBOL, JCL, DB2, IMS, SAS) and ... Strong programming expertise in: * Mainframe: COBOL, JCL, DB2, IMS, SAS * AS400: RPG (RPGLE), CL ...

Maarut

... mainframe, micro\/mini systems, etc.) and multi\-tiered open\-standard technologies such as JSP\/Servlet, JEE, EJB, JNDI, JDBC, JMS, XML, JSON, REST and SOAP\-based Web Services, Strut Framework ...

New

Maarut

CA$1 - CA$11/hr

... 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

Td

Manager, Engineering - Mainframe

Toronto, ON · On-site

CA$96K - CA$136K/yr

Lead / manage a team of Engineers / Technology Specialists and oversee related engineering analysis activities and deliverables * Provide overall team leadership, training, coaching, development ...

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Mainframe Developer information

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How much do mainframe developer jobs pay per hour?

As of Jul 13, 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 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.

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 are Mainframe Developers?

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, and why are they important?

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 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 July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $105,312 per year, or $50.6 per hour.
Mainframe CICS / MQ Engineer

Mainframe CICS / MQ Engineer

DXC Technology

Toronto, ON

Full-time

Re-posted 2 days ago

DXC Technology rating

7.2

Company rating: 7.2 out of 10

Based on 47 frontline employees who took The Breakroom Quiz

125th of 210 rated it services

Job description

Job Description:

DXC Technology (NYSE: DXC) is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations - helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernizes, secures, and operates some of the world's most complex technology estates. Learn more on dxc.com.

Primary Skill: CICS Transaction Server | Secondary: IBM MQ (z/OS)

We are seeking an experienced Mainframe CICS / MQ Engineer to support and maintain enterprise CICS and MQ environments on z/OS. This role focuses primarily on CICS system programming, with strong handson responsibility for IBM MQ subsystems.

Key Responsibilities

  • Build, configure, upgrade, and support CICS Transaction Server regions
  • Strong knowledge of CICS internals, storage protection, transaction isolation, and RENTPGM
  • Support CICS interregion communication (MRO, ISC)
  • Install and support vendor products running within CICS
  • Perform troubleshooting, service restoration, and rootcause analysis
  • Support Disaster Recovery planning, testing, and execution
  • Maintain IBM MQ subsystems, JCL, pagesets, channels, buffer pools, and security
  • Install, upgrade, and apply PTFs/HIPERs for MQ environments
  • Support MQ security, audits, and distributed queue management
  • Participate in 24x7 oncall rotation
  • Follow change management and audit processes

Required Skills

  • Strong experience with CICS Transaction Server on z/OS
  • Working experience with IBM MQSeries / IBM MQ on z/OS
  • MVS tools: TSO/ISPF, JCL, SDSF, IBM & VSAM utilities
  • Exposure to RACF, ACF2, or Top Secret
  • Disaster Recovery experience (backup, restore, DR drills)
  • Ability to work independently and manage multiple priorities

Nice to Have

  • IBM Assembler familiarity (reading code/dumps/exits)
  • Experience in large enterprise or regulated environments

DXC is an equal opportunity employer. We welcome the many dimensions of diversity. Accommodation of special needs for qualified candidates may be considered within the framework of the DXC Accommodation Policy.

In addition, DXC Technology is committed to working with and providing reasonable accommodation to qualified individuals with physical and mental disabilities. If you need assistance in filling out the employment application or require a reasonable accommodation while seeking employment, please e-mail AODA Canada Requests.

Note: This option is reserved for applicants needing a reasonable accommodation related to a disability.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We're committed to fostering an inclusive environment where everyone can thrive.

Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf.More information on employment scams is availablehere.

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