Mainframe Programmer

Job Description

Senior Macro Conversion Engineer

Fulltime Role

Remote

Role Summary

Serve as primary technical lead responsible for reverse engineering current macros and convert this to Rocket terminal emulator macros / IBM PCOMM-based automation solutions while preserving business functionality, performance, and output integrity.

Key Responsibilities

Macro Analysis and Conversion

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• Analyze Rocket macro scripts and workflows.
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• Reverse engineer business logic and process dependencies.
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• Convert Rocket macros using:
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• VBA
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• VBScript
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• PowerShell
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• PCOMM HACL Automation
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• EHLLAPI Automation
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• COM Automation Solutions
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Mainframe Automation Development

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• Automate:
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• Host navigation
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• Screen recognition
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• Protected/unprotected fields
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• Function key processing
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• File transfers
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• Multi-session operations
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• Batch processing
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Reliability Engineering

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• Replace hard-coded delays with:
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• Screen-ready checks
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• Cursor-position validation
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• Host synchronization techniques
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• Field readiness validation
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• Implement:
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• Logging
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• Error handling
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• Retry mechanisms
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• Recovery workflows
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Documentation

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• Create design documentation.
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• Generate macro mapping documents.
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• Support operational runbook development.
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Required Technical Skills

Mainframe & Terminal Emulation

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• Deep understanding of:
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• Host sessions
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• Presentation spaces
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• Screen attributes
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• AID keys
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• Keyboard mappings
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PCOMM Automation

Strong experience in:

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• IBM Personal Communications (PCOMM)
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• EHLLAPI
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• HACL
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• COM Automation
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• Session profile management
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• File transfer configuration
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Programming Languages

Advanced proficiency in:

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• VBA
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• VBScript
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Preferred:

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• PowerShell
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• Python
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• C#
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• Java
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