Software Engineer, Mainframe

Sun Life

Mainframe Software Engineer designing and developing high-quality applications at Sun Life. Collaborating in a dynamic environment to enhance client experiences and system reliability.

Posted 7/24/2026full-timeToronto • 🇨🇦 CanadaMid-LevelSenior💰 CA$65,000 - CA$105,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Mainframe Application Development, with a strong focus on COBOL programming, agile methodologies, and risk management. Proficient in working within zOS environments and collaborating with cross-functional teams to deliver high-quality solutions.

Highest-signal resume keywords

Mainframe Application DevelopmentCOBOL ProgrammingZOS / OS/390 EnvironmentsAgile MethodologiesBilingualism (French, English)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

COBOLDB2IMSJCLTSO/ISPFAgile MethodologiesRisk ManagementProduction-Quality CodeApplication Requirements AnalysisMiddleware Concepts

Soft Skills

CollaborationCommunicationProblem-Solving

Tools & Technologies

GitBitbucketJenkinsZDevOps Pipelines

Industry Keywords

Large-Scale ApplicationsApplication DevelopmentDelivery TimelinesTesting and Documentation

Tech Stack

Tools & technologies

Jenkins

About the role

Key responsibilities & impact

Design, develop, support, and analyze large-scale applications and systems
Break down and analyze application requirements into well-scoped work items
Identify risks and raise them early to protect delivery timelines
Write production-quality COBOL code with appropriate testing and documentation
Work with peers, senior engineers, and stakeholders to deliver solutions

Requirements

What you’ll need

3 - 5 years of experience in mainframe application development
Working knowledge of zOS / OS/390 environments
Experience with TSO/ISPF, DB2, IMS, JCL, and COBOL
Understanding of MQ and middleware concepts
Familiarity with Git, Bitbucket, Jenkins, and zDevOps pipelines is a plus
Experience with agile methodologies such as Scrum or Kanban is an asset
Bilingualism (French, English) required for Quebec

Benefits

Comp & perks

Health insurance
Retirement plans
Flexible work arrangements
Professional development
Ongoing learning through coaching, training, and hands-on experience
Access to modern development tooling
Supportive team environment