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Added 9 mins ago
Supervisor, Mechanical - Locomotive
CN
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Full-time
Added 9 mins ago
Master Data Mgmt Analyst
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Full-time
…people. Our success is possible because of the creativity, intelligence and passion of our people around the world and their desire to lead change. At the same time, we are not afraid to…
Added 9 mins ago
Manager, Application Services | Gestionnaire, applications en ligne (2026-832)
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Full-time
…services are reliable, secure, supportable, and aligned with business…
Added 9 mins ago
Designer, Development (Service)
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Full-time
…people. Our success is possible because of the creativity, intelligence and passion of our people around the world and their desire to lead change. At the same time, we are not afraid to…
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Title: Internal Auditor (Business Control & IT)
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Full-time Specialist, AI Adoption and Enablement (3 Years Fixed Term)
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Added 9 mins ago
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…people. Our success is possible because of the creativity, intelligence and passion of our people around the world and their desire to lead change. At the same time, we are not afraid to…
Added 9 mins ago
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Added 9 mins ago
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…people. Our success is possible because of the creativity, intelligence and passion of our people around the world and their desire to lead change. At the same time, we are not afraid to…
Added 9 mins ago
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Added 9 mins ago
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Added 9 mins ago
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Tata Consultancy Services

Mainframe Developer

Toronto, ON, Canada

Pay: $100,000 to $120,000 USD / year
Job type: Full-time
Apply by: Oct 25, 2026
Posting language: English
Posted: Sep 25, 2026

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Original job description

Inclusion without Exception

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes.

Tata Consultancy Services (BSE: 532540, NSE: TCS) is the technology partner of choice for industry-leading organizations worldwide. Since its inception in 1968, TCS has upheld the highest standards of innovation, engineering excellence and customer service.

It has set an aspiration to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence.

Rooted in the heritage of the Tata Group, TCS is focused on creating long term value for its clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 56 countries and 194 service delivery centers across the world, the company has been recognized as a top employer in six continents. With the ability to rapidly apply and scale new technologies, the company has built long term partnerships with its clients. Many of these relationships have endured into decades and navigated every technology cycle, from mainframes in the 1970s to artificial intelligence today.

Experience Range:

We are hiring a Mainframe Developer with strong hands-on development and support experience across core IBM mainframe technologies. The ideal candidate will possess working expertise in JCL, PL/I, COBOL, CICS, IMS DC/DB, IBM DB2, SQL Server, and REXX tools, and will be comfortable working in enhancement, maintenance, incident resolution, and modernization-support scenarios.

Key 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.

Required 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.

Preferred Skills

Exposure to insurance, banking, or other high-volume regulated enterprise environments.

Experience with source control, DevOps / deployment tooling, mainframe utilities, and job scheduling products.

Familiarity with modernization initiatives such as API enablement, data extraction, service integration, or code refactoring.

Knowledge of performance tuning, data reconciliation, and interface support across distributed systems.

Core Competencies

Attention to detail in legacy environments

Problem-solving under production timelines

Team collaboration and communication

Quality and risk awareness

Continuous improvement mindset

Salary Range - CA$ 100,000 - CA$ 120,000 Per annum

TCS does not use artificial intelligence tools for candidate screening or evaluation. This post is for a current vacancy. The hiring process includes an initial screening, followed by a technical evaluation and managerial discussion.

Tata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources.

Thank you for your interest in TCS. Candidates that meet the qualifications for this position will be contacted within a 2-week period. We invite you to continue to apply for other opportunities that match your profile.

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More about this job

Responsibilities

Develop, enhance, test, and support batch and online applications using IBM mainframe technologies, including COBOL or PL/I, JCL, CICS, IMS, and DB2. Resolve production incidents, support releases and testing, collaborate across teams, and contribute to application stability, performance, and modernization readiness.

Requirements

Requires a bachelor’s degree in a relevant field or equivalent practical experience, along with hands-on experience in the listed mainframe technologies and enterprise production support. Candidates should understand batch and online processing, be able to analyze legacy code and implement safe changes, and have strong troubleshooting, communication, and SDLC skills.

Skills

JCL
PL/I
COBOL
CICS
IMS DC/DB
IBM DB2
SQL Server
REXX
Mainframe Development
Production Support
Batch Processing
Online Transaction Processing
Debugging
Performance Tuning
Change Management
Root-Cause Analysis

Visa sponsorship

Not detected in the job text

Keywords

IBM Mainframe
JCL
PL/I
COBOL
CICS
IMS DC
IMS DB
IBM DB2
SQL Server
REXX
Batch Processing
Online Transaction Processing
Production Support
Incident Resolution
Root-Cause Analysis
Application Maintenance
Application Enhancement
Job Scheduling
Mainframe Utilities
SQL Queries
Stored Logic
Unit Testing
System Testing
Code Reviews
Change Management
Release Management
Performance Tuning
Data Reconciliation
API Enablement
Application Modernization

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