Software Engineer IBM ACS Macro Modernization

Location: Remote

Duration: Contract

Overview

We are seeking a hands-on Software Engineer with strongexperience in IBM Access Client Solutions (ACS) Session Manager orsimilar terminal emulator macro environments, along with Visual Basic forApplications (VBA) expertise.

This role will focus on modernizing and stabilizing criticalmacro-driven workflows currently used across multiple business units.Many of these solutions were developed historically and are now tightlyembedded in operations, creating both technical debt and operational risk.

The selected candidate must be able to quickly onboard, analyzeexisting macro logic, and begin conversion efforts immediately

Key Responsibilities

Analyze existing ACS / emulator-based macros currently used in production across multiple business units
Reverse-engineer undocumented or loosely documented macro logic and workflows
Convert and refactor legacy macros to be compatible with newer versions of IBM ACS Session Manager
Where appropriate, translate macro logic into VBA-based solutions (e.g., Excel-driven front ends leveraging EHLLAPI or similar integration methods)
Partner closely with an assigned Business Analyst to:

Document current-state and future-state workflows
Validate functional requirements
Ensure business continuity during migration

Identify risks, dependencies, and edge cases within macro-driven processes
Deliver clean, maintainable, and supportable solutions aligned with modernization efforts
Provide documentation of converted solutions to support long-term maintainability

Required Qualifications

Proven experience with IBM Access Client Solutions (ACS) Session Manager OR demonstrated experience with comparable terminal emulator macro environments (e.g., HOD, PCOMM, EHLLAPI-based tools)
Strong proficiency in Visual Basic for Applications (VBA) (Excel or similar environments)
Experience working with macro scripting / automation of terminal-based systems
Ability to analyze and refactor legacy automation code with minimal documentation
Experience interfacing with mainframe or IBM i (AS/400) systems
Strong troubleshooting and problem-solving skills
Ability to quickly ramp up and contribute with minimal onboarding

Preferred Qualifications

Experience with EHLLAPI or other emulator integration APIs
Background in modernization or migration of legacy automation tools
Experience working in regulated or operationally critical environments (where downtime or errors have business impact)
Familiarity with process documentation and workflow mapping
Experience collaborating with business analysts and cross-functional teams

Engagement Details

Role Type: Contract (initial engagement with potential extension)
Work Style: Remote
Team Structure: Paired with a dedicated Business Analyst and aligned with an automation engineering team

Start Expectation: Immediatecontribution required

Thanks,

Nitu
Y&L Consulting, Inc./Sistema Technologies
A YASH Technologies Company

Software Engineer IBM ACS Macro Modernization

Key skills

About this role