Mainframe Infra Engineer
- Toronto, ON, Canada
Contract
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Job details
- Job type
- Contract
- Apply by
- Posting language
- English
- Posted
Original job description
Define the rolling patch and maintenance calendar in alignment with IBM service delivery cycles, security advisories, and enterprise change freeze windows.
Assess incoming IBM and ISV maintenance for applicability, risk, and priority; triage HIPER, security, and integrity PTFs for expedited handling.
Set technical direction for, and provide hands-on oversight of, an offshore mainframe operations team executing patch installs, regression testing, and validation across the z/OS estate.
Establish and enforce patching standards, runbooks, and quality checkpoints so offshore-executed work meets the same bar as work performed directly.
Review and approve patch testing results, rollback plans, and go/no-go decisions before production implementation, including for changes executed by the offshore team.
Coordinate with systems programmers, security, and application teams to plan patch windows and manage changes through the CAB process.
Track patch compliance across the mainframe estate; report on outstanding vulnerabilities, aging maintenance, and remediation timelines to management.
Serve as the primary escalation point for patch-related incidents, including issues surfaced by the offshore team during off-hours windows; lead root cause analysis and remediation.
What are the top 3 skills required for this role?
- IBM z/OS
- MQ
- RACF
More about this job
Responsibilities
Own the z/OS patch strategy and maintenance calendar, assess and prioritize IBM and ISV updates, and oversee patch installation, testing, and validation across the mainframe estate. Coordinate production approvals and change windows, track compliance and vulnerabilities, and lead escalations and root cause analysis for patch-related incidents.
Requirements
The role calls for strong IBM z/OS and mainframe subsystem maintenance expertise, including MQ and RACF, along with experience managing SMP/E maintenance and security or integrity patches. It also requires technical oversight of an offshore operations team, patch testing and rollback review, change coordination, compliance reporting, and incident escalation.
Skills
- IBM z/OS
- MQ
- RACF
- SMP/E
- Mainframe Patch Management
- CICS
- DB2
- IMS
- PTF and APAR Management
- Security Patching
- Regression Testing
- Change Management
- Root Cause Analysis
Visa sponsorship
Not detected in the job text
Categories
- Technology
- Management & Leadership
- Security & Safety
Keywords
- IBM z/OS
- SMP/E
- PTFs
- APARs
- RSU
- CSI Management
- CICS
- DB2
- IMS
- MQ
- RACF
- Mainframe Operations
- Patch Management
- IBM Maintenance
- ISV Maintenance
- Security Advisories
- HIPER PTFs
- Regression Testing
- Patch Validation
- Runbooks
- Rollback Plans
- Go/No-Go Decisions
- Change Advisory Board
- Patch Compliance
- Vulnerability Remediation
- Root Cause Analysis
- Offshore Team Oversight