Mainframe Developer
Ancile Canada Inc
Collaborate with business analysts, quality assurance teams, project managers, and stakeholders to analyze user requirements and develop, enhance, and maintain business software applications on the IBM z/OS platform using COBOL, JCL, DB2, and VSAM.
Code and unit test software application changes in TSO/ISPF, support integration testing across connected systems, and manage version control and release promotion through BMC AMI DevX Code Pipeline.
Develop and integrate customer-facing CICS online programs, JCL batch jobs, and IBM MQ message flows to exchange data with web and enterprise applications, and schedule workflows using BMC Control-M.
Participate in peer code reviews, validate business logic changes, and track sprint deliverables and application development tasks using JIRA.
Perform software debugging, root-cause analysis, and defect resolution for production incidents tracked in ServiceNow and QA defects using IBM Fault Analyzer, CICS DTCN, and File-AID to implement code fixes and ensure application stability and operational continuity.
Develop and maintain technical documentation in Confluence, including functional specifications, data-mapping sheets, deployment checklists, and application support guides.
Refactor and optimize legacy COBOL application modules by streamlining program logic, eliminating redundant code, improving code efficiency, and optimizing DB2 SQL queries to enhance application maintainability, performance, and processing efficiency.
Skills Required COBOL, JCL, CICS, MQ, TSO/ISPF, File-AID, z/OS, DB2, VSAM, SPUFI, BMC AMI, SCLM, BMC Control-M, JIRA, Confluence and ServiceNow
Education Required
A degree or a college program in a related field is required.
Experience
Minimum 5 years of experience as a mainframe developer is required
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Code and unit test software application changes in TSO/ISPF, support integration testing across connected systems, and manage version control and release promotion through BMC AMI DevX Code Pipeline.
Develop and integrate customer-facing CICS online programs, JCL batch jobs, and IBM MQ message flows to exchange data with web and enterprise applications, and schedule workflows using BMC Control-M.
Participate in peer code reviews, validate business logic changes, and track sprint deliverables and application development tasks using JIRA.
Perform software debugging, root-cause analysis, and defect resolution for production incidents tracked in ServiceNow and QA defects using IBM Fault Analyzer, CICS DTCN, and File-AID to implement code fixes and ensure application stability and operational continuity.
Develop and maintain technical documentation in Confluence, including functional specifications, data-mapping sheets, deployment checklists, and application support guides.
Refactor and optimize legacy COBOL application modules by streamlining program logic, eliminating redundant code, improving code efficiency, and optimizing DB2 SQL queries to enhance application maintainability, performance, and processing efficiency.
Skills Required COBOL, JCL, CICS, MQ, TSO/ISPF, File-AID, z/OS, DB2, VSAM, SPUFI, BMC AMI, SCLM, BMC Control-M, JIRA, Confluence and ServiceNow
Education Required
A degree or a college program in a related field is required.
Experience
Minimum 5 years of experience as a mainframe developer is required
#J-18808-Ljbffr
Reference: WJ-3875_16155544 · Posted 11 Nov 2026, 08:48 PM