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Astra North Infoteck Inc.
Sr. Mainframe Rehosting Specialist – Mainframe Modernization, Raincode & AzureAstra North Infoteck Inc. • Toronto, ON, ca
Sr. Mainframe Rehosting Specialist – Mainframe Modernization, Raincode & Azure

Sr. Mainframe Rehosting Specialist – Mainframe Modernization, Raincode & Azure

Astra North Infoteck Inc. • Toronto, ON, ca
19 days ago
Job type
  • Full-time
  • Quick Apply
Job description
Job Description

Role Overview

• Lead and execute large-scale mainframe modernization and rehosting initiatives.
• Drive end-to-end transformation activities from assessment through migration and post-migration optimization.
• Provide hands-on technical expertise across mainframe technologies, rehosting platforms, and Azure cloud modernization.

Key Responsibilities

Mainframe Rehosting & Modernization

• Lead mainframe rehosting initiatives using:
• Raincode
• Micro Focus
• Define and execute:
• Rehosting (Lift & Shift) strategies
• Replatforming approaches
• Selective refactoring strategies
• Drive mainframe transformation programs.
• Develop modernization roadmaps, timelines, and execution plans.

Hands-On Application Transformation

• Perform technical transformation activities on legacy systems built with:
• COBOL
• PL/I
• Assembler
• CICS
• Analyze and modernize applications based on:
• JCL
• IMS
• DB2
• VSAM
• Execute:
• Code remediation
• Conversion validation
• Runtime behavior fixes
• Support Eztrieve-based applications as needed.

Database Migration & Data Transformation

• Lead DB2 to SQL Server migration activities.
• Define:
• Data mapping strategies
• Data transformation approaches
• Reconciliation processes
• Validation processes
• Ensure:
• Data integrity
• Performance optimization
• Minimal downtime during cutover

Azure Cloud Enablement

• Design and implement Azure-based solutions including:
• Compute (VMs and rehosted workloads)
• Networking (VNETs and hybrid connectivity)
• Storage
• Security controls (RBAC, Key Vault)
• Enable integration between:
• Rehosted applications
• Modern cloud services
• APIs

Performance Optimization

• Ensure post-migration:
• Performance parity or improvement compared to mainframe systems
• High availability
• Disaster recovery readiness
• Optimize:
• Batch processing
• Scheduling
• Online transaction processing systems

Migration Delivery & Execution

• Collaborate with:
• Application teams
• Cloud engineers
• DevOps teams
• QA teams
• Business stakeholders
• Lead:
• Migration planning
• Execution activities
• Testing and validation
• Cutover and go-live activities

Governance, Risk & Best Practices

• Define and enforce:
• Migration standards
• Migration frameworks
• Architecture best practices
• Identify:
• Risks
• Dependencies
• Implement mitigation strategies throughout the migration lifecycle.

Testing & Post-Migration Support

• Drive:
• Functional testing
• Integration testing
• Performance testing
• Support:
• Cutover execution
• Hypercare activities
• Stabilization
• Conduct post-migration optimization and tuning.

Mentorship & Technical Leadership

• Provide hands-on leadership and guidance to engineering teams.
• Mentor developers on:
• Mainframe modernization techniques
• Rehosting tools
• Cloud adoption strategies

Required Skills & Qualifications

Mainframe Technologies

• Strong hands-on experience with:
• COBOL
• PL/I
• Assembler
• CICS
• Strong knowledge of:
• JCL
• IMS
• DB2
• VSAM
• Experience with batch and online processing systems.

Rehosting & Modernization

• Hands-on experience with:
• Raincode
• Micro Focus
• Proven experience with mainframe modernization programs.
• Expertise in:
• Code analysis
• Code remediation
• Application dependency mapping

Database Migration

• Strong experience with DB2 to SQL Server migration.
• Deep understanding of:
• Data transformation
• Data validation
• Migration best practices

Azure Cloud

• Strong experience designing solutions on Microsoft Azure.
• Knowledge of:
• Hybrid cloud architectures
• Infrastructure design
• Cloud security

Core Engineering

• Strong hands-on development and troubleshooting experience.
• Ability to:
• Debug complex legacy systems
• Resolve migration issues
• Optimize application performance

Nice to Have

• Eztrieve experience.
• DevOps tools:
• Azure DevOps
• Jenkins
• Git
• Exposure to:
• Containerization
• Microservices architectures
• Experience in:
• BFSI
• Insurance
• Enterprise systems
• 10+ years of mainframe modernization and rehosting experience.





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Sr. Mainframe Rehosting Specialist – Mainframe Modernization, Raincode & Azure • Toronto, ON, ca

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