Lead Mainframe Development (Migration)

Toronto, ON, CA • Posted 1 day ago • Updated 1 day ago

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Job Details

Skills

Analytical Skill
Application Development
Batch Processing
COBOL
Collaboration
Communication
Conflict Resolution
Data Flow

Summary

We are looking for a Lead Mainframe Development (Migration) for our client in Toronto, ON

Job Title: Lead Mainframe Development (Migration)

Job Location: Toronto, ON

Job Type: Contract

Job Description:

Requirement/Must Have:

Strong experience in Mainframe Application Development and Technical Solution Architecture.
Expert-level skills in COBOL.
Strong expertise in JCL including SORT and ICETOOL.
Experience with DB2 and SQL batch integration with performance considerations.
Strong knowledge of VSAM including KSDS, ESDS, and RRDS.
Proven experience working on legacy application migration or modernization programs.
Ability to interpret and reengineer complex legacy logic into maintainable batch solutions.
Strong problem-solving, analytical, and documentation skills.

Experience:

Hands-on experience performing or reviewing COBOL, JCL, DB2, and VSAM development.
Experience supporting system testing, performance tuning, and production readiness.
Experience with data validation, reconciliation, and parallel run activities during migration.
Experience working in financial services environments preferred.
Experience migrating FOCUS applications to COBOL and SORT ICETOOL preferred.

Responsibilities:

Act as technical lead for migration of FOCUS applications to COBOL, JCL, and SORT ICETOOL solutions.
Own end-to-end design decisions ensuring functional parity, performance efficiency, and operational stability.
Review and approve technical designs, migration approaches, and coding standards.
Provide hands-on guidance and mentoring to development teams during build and testing phases.
Analyze existing FOCUS programs, reports, and data flows to define migration strategies.
Map FOCUS logic to optimized COBOL batch processing and SORT ICETOOL utilities.
Identify opportunities to simplify, consolidate, or optimize legacy logic during migration.
Support data validation, reconciliation, and parallel processing activities to ensure migration accuracy.
Partner with QA and operations teams to support testing, performance tuning, and production readiness.
Assist with post-migration stabilization and defect resolution.
Collaborate with application owners, business analysts, and platform teams.
Communicate technical risks, dependencies, and progress to program leadership.
Support knowledge transfer and documentation for long-term supportability.

Skills:

Strong mainframe architecture and batch processing expertise.
Deep understanding of COBOL, JCL, DB2, VSAM, and batch utilities.
Ability to guide structured legacy modernization initiatives.
Strong stakeholder communication and leadership skills.
Exposure to mainframe scheduling, performance tuning, and batch optimization preferred.

Qualification And Education:

Bachelor s degree in Computer Science, Information Technology, or related field (or equivalent experience).

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 10516350
Position Id: ON_LMDG_0223
Posted 1 day ago

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Lead Mainframe Development (Migration)

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