Senior Software Engineer (Mainframe)

MainframeMaster; Toronto; On-site; CAD 90,000 - 130,000; Full time

Job summary

MainframeMaster in Toronto is seeking an experienced mainframe developer to design, code, test, and implement mainframe solutions that meet business and control requirements. You will work with JCL, batch cycles, and related configurations while maintaining high-quality code and unit tests.

The role emphasizes collaboration across engineering, operations, and business teams, adherence to enterprise frameworks, and ongoing automation and modernization efforts to improve efficiency and reduce risk.

Responsibilities

• Develop and maintain mainframe solutions per specs, including testing and deployment.
• Code with JCL, batch cycles, and related configurations under control requirements.
• Support incident management with clear communication to stakeholders.
• Participate in peer reviews and quality management activities.
• Identify automation opportunities to improve efficiency and reliability.

Job description

Key Accountabilities

• Perform moderately complex to complex technical tasks independently, with appropriate guidance for highly complex or high-risk changes.
• Develop program specifications; design, code, integrate, test, debug, and implement mainframe solutions in accordance with business, technical, and control requirements.
• Support business inquiries and operational needs through small enhancements, maintenance, and break/fix implementations, including source code, JCL, batch cycle, and related configuration changes; contribute to peer code reviews as required.
• Participate in quality management reviews, including reviews of designs, prototypes, technical specifications, and requirements artifacts, to ensure completeness, quality, and alignment with business needs.
• Develop and maintain high-quality code in compliance with enterprise standards, support unit testing, system testing, integration testing, production implementation, and post-deployment stabilization activities.
• Provide technical support during incident management by analyzing production incidents and outages, performing impact assessments, supporting recovery activities, and communicating clearly with technology and business stakeholders throughout resolution.
• Contribute to the development and maintenance of processes that help prevent recurring issues, and support root cause analysis, problem determination, and timely incident resolution using appropriate quality and control measures.
• Adhere to enterprise engineering frameworks, software development methodologies, release processes, and control standards applicable to mainframe development and delivery.
• Actively identify and support continuous improvement, automation, and modernization opportunities across mainframe engineering practices, including code quality, testing, deployment, and operational efficiency.
• Identify opportunities to improve efficiency, reduce operational costs, and enhance stakeholder experience through practical, well-reasoned technical recommendations and solutions.
• Support and implement remediation actions to address performance, risk, audit, compliance, and governance issues within the application and production environment.
• Keep team members and stakeholders informed of project status, delivery progress, risks, dependencies, and other relevant day-to-day updates.
• Proficiency with Git and familiarity with enterprise source control, change management, release management, and deployment practices in regulated environments.
• Strong communication skills with the ability to collaborate effectively across engineering, infrastructure, operations, and business teams.