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Acestack
Mainframe developer || Toronto, ON (Onsite – 4 Days/Week) || Fulltime FTEAcestack • Toronto, ON, Canada
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Mainframe developer || Toronto, ON (Onsite – 4 Days/Week) || Fulltime FTE

Mainframe developer || Toronto, ON (Onsite – 4 Days/Week) || Fulltime FTE

Acestack • Toronto, ON, Canada
13 days ago
Job type
  • Full-time
  • Permanent
  • Quick Apply
Job description
Job Title: Mainframe Developer

Location: Toronto, ON (Onsite 4 Days/Week)

Fulltime Permanent - FTE

Primary Skills: Mainframe Development

Job Description

We are seeking an experienced Mainframe Developer to design, develop, and support enterprise mainframe applications. The ideal candidate will have strong expertise in IBM Mainframe technologies, DB2, COBOL, and JCL, along with the ability to independently analyze requirements, develop technical solutions, and mentor junior developers. Experience with modern development practices and AI-assisted coding tools is an added advantage.

Key Responsibilities
  • Design, develop, test, and maintain IBM Mainframe applications.
  • Analyze business and technical requirements and prepare detailed technical designs.
  • Develop and enhance applications using COBOL, JCL, DB2, SQL, and IMS.
  • Perform unit testing, code reviews, deployment, and production support activities.
  • Analyze IMS segments and DB2 database objects to design efficient application solutions.
  • Participate in end-to-end field mapping, system integration, and data validation.
  • Collaborate with business analysts, QA teams, and cross-functional stakeholders.
  • Mentor junior developers and provide technical guidance during project delivery.
  • Utilize Endevor, File-AID, CA-7, and other mainframe tools for development and job scheduling.
  • Track project tasks, incidents, and documentation using Jira, Confluence, and ServiceNow.
  • Leverage AI-assisted development tools such as GitHub Copilot and Visual Studio Code to improve productivity.
  • Participate in application maintenance, troubleshooting, performance optimization, and production support.
Required Skills
  • Strong experience with IBM Mainframe technologies.
  • Hands-on expertise in COBOL, JCL, SQL, DB2, IMS, Endevor, File-AID, and CA-7.
  • Strong understanding of DB2 database objects, SQL processing, and database analysis.
  • Experience creating technical designs and independently delivering development tasks.
  • Experience with Jira, Confluence, ServiceNow, and INSYNC.
  • Familiarity with GitHub Copilot, Visual Studio Code, and AI-assisted software development.
  • Strong analytical, debugging, and problem-solving skills.
  • Excellent communication and collaboration abilities.
  • Ability to work independently and mentor junior team members.
Preferred Qualifications
  • Knowledge of Kafka and RESTful APIs.
  • Experience working in Agile/Scrum development environments.
  • Exposure to application modernization initiatives.
  • Experience supporting enterprise-scale financial or banking applications.
  • Strong adaptability and willingness to learn new technologies and tools.
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Mainframe developer || Toronto, ON (Onsite – 4 Days/Week) || Fulltime FTE • Toronto, ON, Canada

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