Jobs in Ontario (207,158 jobs)

Jobs across Ontario, Canada. Choose a city or town to search nearby.

207,158 listings · 21,091 employers Counted Nov 6, 2026. How we count

About these jobs

Employers hiring include Loblaw Companies Limited (5,265 listings), Shoppers Drug Mart (4,057 listings), Walmart Canada (3,431 listings).

Common roles: Retail sales associate, Practical nurse, Registered nurse.

33,691 of these listings include employer-provided pay. Open a job to see its currency and pay period.

Advertised starting pay
Pay period	Median starting pay	Listings
CAD / hour	23.00	18,025
CAD / year	80,000.00	14,310
USD / year	155,000.00	86
CAD / month	4,108.00	67
CAD / week	1,500.00	41
CAD / day	101.00	23
USD / hour	20.00	13

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Workplace classifications: 0% remote, 17% hybrid, 82% on-site, 0% not specified. Hybrid and on-site classifications may be inferred from descriptions. Check the original ad.

Based on the dated count above. Listings can change. How we count

Jobs in Ontario

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Aarorn Technologies Inc

Mainframe Application Support Engineer

Toronto, ON, Canada

$50 CAD / hour · Contract

Apply About employer

Applications open in a new tab.

Job details

Pay: $50 CAD / hour
Job type: Contract
Apply by: May 4, 2027
Posting language: English
Posted: Nov 5, 2026

Original job description

Job Title: Mainframe Application Support Engineer

Location: Toronto, ON (4x onsite a week)

Employment Type: Contract

Pay Rate: CAD$50/HR INC

Interview Type: Face 2 Face (Onsite Interview Only)

Job Description

We are seeking an experienced Mainframe Application Support Engineer to provide production support, incident management, and application maintenance for critical mainframe-based business applications. The ideal candidate will have strong expertise in IBM Mainframe technologies involving IBM z/OS, COBOL, JCL, DB2, VSAM and CICS, troubleshooting production issues, ensuring application stability, and driving continuous service improvements.

The role requires close collaboration with development, infrastructure, business, and operations teams to support mission-critical applications while maintaining agreed service levels.

Key Responsibilities

Production Support & Incident Management

Provide L2/L3 support for mainframe applications in production environments.

Investigate, analyze, and resolve production incidents within SLA timelines.

Perform root cause analysis (RCA) and implement preventive measures.

Support critical business events, release deployments, and production changes.

Application Maintenance

Analyze application failures and identify corrective actions.

Coordinate with development teams for defect fixes and enhancements.

Validate fixes and support deployment activities.

Ensure application availability, reliability, and performance.

Disclaimer: AI tools may assist in the recruitment process; however, all hiring decisions are made by the recruitment team based on a comprehensive evaluation of candidates.

Apply About employer

More about this job

Responsibilities

Provide L2/L3 production support for critical mainframe applications, investigate and resolve incidents within SLA timelines, and perform root cause analysis with preventive follow-up. Maintain application availability and performance by coordinating defect fixes, validating changes, and supporting releases and critical business events.

Requirements

The role calls for an experienced mainframe application support professional with expertise in IBM z/OS, COBOL, JCL, DB2, VSAM, and CICS. Candidates should be able to troubleshoot production issues, manage incidents, maintain application stability, and collaborate with development, infrastructure, business, and operations teams.

Skills

IBM z/OS
COBOL
JCL
DB2
VSAM
CICS
Production Support
Incident Management
Troubleshooting
Root Cause Analysis
Application Maintenance
Release Deployment
Defect Resolution
Service Improvement
Performance Management

Visa sponsorship

Not detected in the job text

Keywords

Mainframe
IBM z/OS
COBOL
JCL
DB2
VSAM
CICS
Production Support
L2 Support
L3 Support
Incident Management
SLA
Root Cause Analysis
Application Maintenance
Troubleshooting
Preventive Measures
Release Deployment
Production Changes
Defect Fixes
Enhancements
Application Availability
Application Reliability
Performance
Service Improvement
Critical Business Applications
IT Services
IT Consulting

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