Mainframe Developer — COBOL, CICS, DB2 & Automation

Tata Consultancy Services; Toronto; On-site; CAD 100,000 - 120,000; Full time

Job summary

Tata Consultancy Services Canada Inc. is seeking a Junior Technology Logistics Support Associate to provide day‑to‑day technical support for technology equipment and systems within the logistics environment.

This role serves as the first point of contact for IT incidents and requests, ensuring timely resolution to support business operations. The position also assists with system installations, monitors data center infrastructure, coordinates with internal and third‑party support teams, and

Qualifications

• Bachelor's degree in computer science, Engineering, Information Systems, or equivalent practical experience.
• Strong hands‑on experience with JCL, PL/I, COBOL, CICS, IMS DC/DB, IBM DB2, SQL Server, and REXX.
• Experience in production support, problem determination, defect fixes, and enhancement delivery in a controlled enterprise environment.
• Good understanding of batch processing, online transaction processing, datasets, file structures, job scheduling, and environment promotion.
• Ability to read and analyze legacy code, identify dependencies, and implement safe changes with minimal business disruption.
• Working knowledge of SDLC, change management, release processes, and documentation practices.
• Strong debugging, troubleshooting, and communication skills.

Responsibilities

• Design, develop, enhance, test, and support applications built on IBM mainframe technologies.
• Develop and maintain batch and online programs using COBOL and/or PL/I with JCL-based scheduling and execution logic.
• Work with CICS transaction programs and IMS DC / IMS DB components for online and database processing.
• Develop, tune, and troubleshoot DB2-based programs, SQL queries, stored logic, and data access routines.
• Support interfaces or reporting solutions involving SQL Server where required in the application ecosystem.
• Use REXX and related tooling for automation, utilities, diagnostics, and productivity improvements.
• Perform root‑cause analysis for production incidents, implement bug fixes, and support release / deployment activities.
• Participate in impact analysis, code reviews, unit testing, system testing support, and documentation updates.
• Collaborate with business analysts, testers, infrastructure teams, and downstream / upstream application teams.
• Contribute to application stability, performance improvements, technical debt reduction, and modernization‑readiness activities.

Skills

JCL

PL/I

COBOL

CICS

IMS DC/DB

DB2

SQL Server

REXX

Education

Bachelor's degree in Computer Science or related field

Job description

Tata Consultancy Services Canada Inc. is seeking a Junior Technology Logistics Support Associate to provide day‑to‑day technical support for technology equipment and systems within the logistics environment.

This role serves as the first point of contact for IT incidents and requests, ensuring timely resolution to support business operations. The position also assists with system installations, monitors data center infrastructure, coordinates with internal and third‑party support teams, and