Posted 6 days ago
Mainframe Application Support Engineer
@ Aarorn Technologies Inc
Toronto, Ontario
Overview
Aarorn Technologies Inc is hiring a contract Mainframe Application Support Engineer in Toronto, ON, with onsite work four days a week. The role provides L2/L3 production support, incident management and application maintenance for mainframe business applications. The posting states a rate of CAD $50/hour inclusive and an onsite-only face-to-face interview.
Responsibilities:
- Provide L2/L3 production support for mainframe applications
- Investigate and resolve incidents within SLA timelines
- Perform root cause analysis and preventive measures
- Coordinate defect fixes and validate deployments
Requirements summary:
- Strong expertise in IBM z/OS, COBOL, JCL, DB2, VSAM, CICS
- Experience troubleshooting production issues
- Collaboration with development and operations teams
Tools & skills
Source and dates
Source type not verified · apify-linkedin
- Employer posting date
- 2026-11-04
- First seen by our source
- 2026-11-10
- Source record updated
- 2026-11-10
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Mid level |
| Department | Software development |
| Travel | air: none · ground: none |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Aarorn Technologies Inc
| Field | Value |
|---|---|
| Open jobs on Jobsy | 5 |
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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