Mainframe Programmer
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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
- Analyze Rocket macro scripts and workflows.
- Reverse engineer business logic and process dependencies.
- Convert Rocket macros using:
- VBA
- VBScript
- PowerShell
- PCOMM HACL Automation
- EHLLAPI Automation
- COM Automation Solutions
Mainframe Automation Development
- Automate:
- Host navigation
- Screen recognition
- Protected/unprotected fields
- Function key processing
- File transfers
- Multi-session operations
- Batch processing
Reliability Engineering
- Replace hard-coded delays with:
- Screen-ready checks
- Cursor-position validation
- Host synchronization techniques
- Field readiness validation
- Implement:
- Logging
- Error handling
- Retry mechanisms
- Recovery workflows
Documentation
- Create design documentation.
- Generate macro mapping documents.
- Support operational runbook development.
Required Technical Skills
Mainframe & Terminal Emulation
- Deep understanding of:
- Host sessions
- Presentation spaces
- Screen attributes
- AID keys
- Keyboard mappings
PCOMM Automation
Strong experience in:
- IBM Personal Communications (PCOMM)
- EHLLAPI
- HACL
- COM Automation
- Session profile management
- File transfer configuration
Programming Languages
Advanced proficiency in:
- VBA
- VBScript
Preferred:
- PowerShell
- Python
- C#
- Java
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