Senior Software Engineer (Mainframe

Work Location:

Toronto, Ontario, Canada

37.5

Technology Solutions

$81,600 - $115,200 CADTD is committed to providing fair and equitable compensation opportunities to all colleagues. Growth opportunities and skill development are defining features of the colleague experience  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.

• 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.

Undergraduate degree in Computer Science, Engineering, or equivalent experience.

• Strong engineering background delivering enterprise applications, including mainframe solutions, batch processing systems, online transaction processing, and service-enabled integrations.
• Undergraduate degree, Postgraduate degree or Technical Certificate
• Strong academic background (e.g., computer science, engineering)
• 7+ years of application development experience, including end-to-end design, development, testing, implementation, and production support.
• Hands-on experience in application design and development, with strong working knowledge of mainframe technologies such as COBOL, JCL, CICS, DB2, VSAM,…