Mainframe Application Support Engineer
- Toronto, ON, Canada
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- English
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Original job description
Mainframe Application Support Engineer
Toronto Hybrid 4 days a week on site
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.
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 measures. Maintain application availability, reliability, and performance while coordinating defect fixes, enhancements, releases, and production changes with development and other teams.
Requirements
The role calls for an experienced mainframe application support engineer with strong expertise in IBM z/OS, COBOL, JCL, DB2, VSAM, and CICS. Candidates should be able to troubleshoot production issues, manage incidents, and collaborate with development, infrastructure, business, and operations teams.
Skills
- IBM z/OS
- COBOL
- JCL
- DB2
- VSAM
- CICS
- Mainframe Application Support
- Production Support
- Incident Management
- Troubleshooting
- Root Cause Analysis
- Application Maintenance
- Release Deployments
- Production Changes
- Performance Monitoring
Visa sponsorship
Not detected in the job text
Categories
- Technology
- Software
- Customer Service & Support
Keywords
- Mainframe
- IBM z/OS
- COBOL
- JCL
- DB2
- VSAM
- CICS
- Production Support
- L2 Support
- L3 Support
- Incident Management
- Production Incidents
- SLA
- Root Cause Analysis
- Preventive Measures
- Application Maintenance
- Application Stability
- Application Availability
- Application Reliability
- Application Performance
- Defect Fixes
- Enhancements
- Release Deployments
- Production Changes
- Mission-Critical Applications
- IT Services
- IT Consulting