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Added 3 days ago
H
Principal Software Engineer – Collateral Treasury Trading Platforms
HSBC
Toronto, ON · Greater Toronto Area, Canada
- $91,600 to $137,300 CAD / year
- Full-time
Added 3 days ago
ES
DevOps / Cloud Engineer
Epsilon Solutions Ltd.
Toronto, ON
- Contract
We are looking for a hands-on DevOps / OpenShift Engineer with approximately 5 to 6 years of DevOps, container platform, and cloud engineering experience. The ideal candidate will have…
Added 3 days ago
LA
Development Engineer
Litens Automotive Group
Concord, ON
- Full-time
processes as assigned, under the direction of a Sr. Engineer or Management
Added 3 days ago
Senior Software Developer (AI Platform & Applications)
Dayforce
Canada
We are looking for an Intermediate to Senior Software Developer to join the team building AI-powered capabilities within the Dayforce platform. This role is ideal for an experienced…
Added 3 days ago
EM
Senior Consultant/Manager - Data Engineer
Electric Mind
Toronto, ON
- Full-time
We're looking for a developer to help build and maintain data pipelines on Databricks for a financial services/wealth management data platform. The platform ingests data from multiple…
Added 3 days ago
RE
EOS Principal Software Engineer
Rodan Energy Solutions Inc.
Mississauga, ON
- Full-time
Rodan Energy is seeking a technically versatile Senior Software Engineer to build and evolve industry-leading Energy Optimization Solutions (EOS) and help shape the future of software,…
Added 3 days ago
R&
Staff AI Builder
Robots & Pencils
Canada
- Full-time
…delivery of AI/ML systems. This role is ideal for an experienced engineer who thrives on architectural decisions, can confidently own systems end-to-end, and contributes to technical…
Added 3 days ago
GP
Data Science Developer
Global Pharma Tek
ON · Ontario, Canada
- Contract
Job-Role/Title: Data Science /Data Engineer Developer
Added 3 days ago
O
Assistant Interface Manager
ONxpress
Toronto, ON
- Full-time
Bachelor’s degree in civil engineering, Systems Engineering, or a related engineering discipline. Professional Engineer (P.Eng.) designation or eligibility for registration in Ontario is…
Added 3 days ago
SS
Senior Automation Engineer- Agentic AI
Sapphire Stream Technology
Toronto, ON · Greater Toronto Area, Canada
- Full-time
SST is seeking an experienced Senior Agentic AI – Validation & Automation Engineer to join our engineering team in Markham, Ontario.
Added 3 days ago
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Sr. Interface Coordinator
ONxpress
Toronto, ON
- Full-time
Licensed Professional Engineer (P.Eng.) or eligibility for licensure is an asset.
Added 3 days ago
AP
Founding Product Manager
AMZ Prep®
Mississauga, ON
- Full-time
- Strong product writing, and the ability to explain the same problem clearly to an engineer, an operator and a customer.
Added 3 days ago
Senior Data Engineer - Vancouver
Capgemini
Vancouver, BC
Added 3 days ago
Senior Data Engineer
Capgemini
Vancouver, BC
Added 3 days ago
EA
Software Engineer III -Software Engineer III - Temporary Full Time
Electronic Arts
Vancouver, BC
- Full-time
Reporting to the Engineering Manager, we are seeking an experienced .NET Software Engineer with a strong DevOps background to join our Quality Verification and Standards (QVS) team. In this…
Added 3 days ago
Principal Software Engineer (Engine)
Electronic Arts
Vancouver, BC
We are seeking a Principal Software Engineer to join our Research & Engineering team. You have the agency to deploy your technical firepower wherever it creates maximum leverage for our…
Added 3 days ago
GD
Software Firmware Engineer - Bowman
General Dynamics Missions System International
Calgary, AB
- Full-time
We are currently seeking an experienced Software/Firmware Developer to join our BOWMAN product development team in Calgary, Alberta.
Added 3 days ago
Member of Technical Staff (Migrations)
Cockroach Labs
Toronto, ON
…and Cockroach Continuum. We're looking for a staff software engineer to help build out the Migration Assistant, expand the capabilities of the MOLT toolkit, and to drive innovation around…
Added 3 days ago
GD
Software Firmware Engineer - Bowman
General Dynamics Mission Systems–Canada
Calgary, AB
- Full-time
We are currently seeking an experienced Software/Firmware Developer to join our BOWMAN product development team in Calgary, Alberta.
Added 3 days ago
GD
Software Firmware Engineer - Bowman
General Dynamics Mission Systems–Canada
Calgary, AB
- Full-time
We are currently seeking an experienced Software/Firmware Developer to join our BOWMAN product development team in Calgary, Alberta.
Added 3 days ago
AT
Mainframe Application Support Engineer
Aarorn Technologies Inc
Toronto, ON
- $50 CAD / hour
- Contract
Job Title: Mainframe Application Support Engineer
Added 3 days ago
QC
Quality Assurance Engineer
Quarry Consulting
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Added 3 days ago
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Application Engineer
TEEMA
Vancouver, BC
- $90,000 to $100,000 CAD / year
- Full-time
We are looking for a Field Application Engineer (FAE) to join a growing technology team in Vancouver.
Added 3 days ago
TC
Workday Software Engineer
Tata Consultancy Services
Toronto, ON
- $90,000 to $110,000 CAD / year
- Full-time
We are seeking an experienced Workday Software Engineer to design, develop, and support Workday integrations and solutions. The role requires strong hands-on experience with Workday…
Added 3 days ago
P
Senior Software Engineer C# .NET
Prophix
Toronto, ON · Etobicoke, ON
- Full-time
As a Senior Software Engineer at Prophix, you'll play a central role in shaping the product that over 2,500 finance teams around the world rely on every day for budgeting, reporting, and…

Aarorn Technologies Inc

Mainframe Application Support Engineer

Toronto, ON, Canada

$50 CAD / hour · Contract

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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.

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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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