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Aptino, Inc.

Mainframe Production Support Engineer

Toronto, ON, Canada

$45 to $50 CAD / hour · Contract

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Job details

Pay: $45 to $50 CAD / hour
Job type: Contract
Apply by: Dec 4, 2026
Posting language: English
Posted: Nov 4, 2026

Original job description

🎯 Interview: Face-to-Face Interview Required (L1 and/or Client Interview)

We are looking for an experienced Mainframe Production Support Engineer to support and maintain critical banking applications. The ideal candidate must have strong hands-on experience in mainframe production support, incident management, troubleshooting, and application maintenance.

Key Responsibilities:

Provide production support and maintenance for mainframe banking applications.
Monitor and troubleshoot production issues, batch failures, and application incidents.
Support COBOL, JCL, IMS, DB2, and MQSeries applications.
Participate in production support and on-call rotations.
Support application conversions, audits, and compliance initiatives.
Coordinate with business and technical teams to resolve issues.
Maintain technical documentation and ensure timely issue resolution.
Provide after-hours support when required.

Required Skills:

Hands-on Mainframe Production Support experience.
Strong knowledge of COBOL and JCL.
Experience with IMS (DB, Online, Batch) and DB2.
Knowledge of MQSeries, Git/Endevor, and Zeke.
Experience in production incident management and on-call support.
Strong troubleshooting and communication skills.
Post-secondary education is required.

Nice to Have:

z/OS Connect, IDz, and zUnit.
Mainframe test automation experience.
Experience with CI/CD pipelines.

Important:

This is a Production Support role, NOT a Mainframe Developer position.
Candidates must be comfortable working onsite in Toronto 4 days per week.
Face-to-face interview is mandatory.

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More about this job

Responsibilities

Provide production support and maintenance for critical mainframe banking applications, including monitoring and resolving incidents, batch failures, and application issues. Coordinate with business and technical teams, support conversions and compliance initiatives, maintain documentation, and participate in on-call and after-hours support.

Requirements

Candidates need hands-on mainframe production support experience and strong knowledge of COBOL, JCL, IMS, and DB2, along with experience in incident management and on-call support. Post-secondary education is required, and candidates must be comfortable working onsite in Toronto four days per week and attending a face-to-face interview.

Skills

Mainframe Production Support
Incident Management
Troubleshooting
COBOL
JCL
IMS
DB2
MQSeries
Git
Endevor
Zeke
On-Call Support
Application Maintenance
Communication
Mainframe Test Automation
CI/CD Pipelines

Visa sponsorship

Not detected in the job text

Keywords

Mainframe Production Support
Banking Applications
Incident Management
Troubleshooting
COBOL
JCL
IMS
DB2
MQSeries
Git
Endevor
Zeke
On-Call Support
Application Maintenance
Production Monitoring
Batch Processing
Application Conversions
Audits
Compliance
Technical Documentation
z/OS Connect
IDz
zUnit
Test Automation
CI/CD Pipelines
Face-to-Face Interview

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