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AIA – Mainframe Modernization Specialist
The prospect
We are seeking a skilled
Senior Mainframe Modernization Specialist
to join our
AI-Driven Modernization
practice, focused on transforming
legacy mainframe systems
into agile, efficient, and cloud-ready platforms. The ideal candidate will bring a strong blend of
mainframe expertise, AI tools proficiency, and cloud technologies
along with
hands-on collaboration
with cross-functional teams to deliver scalable modernization outcomes.

You will work closely with technology leads, architects, and business stakeholders to analyse legacy applications, leverage AI/ML to automate code analysis and refactoring,



and execute migration of mainframe workloads to modern distributed and cloud-native platforms.

Your Key Responsibilities
Technical Excellence:
- Mainframe Systems Analysis and Understanding
- Assess and analyse existing mainframe applications (COBOL, JCL, VSAM, DB2, CICS, IMS) to identify modernization opportunities and dependencies.
- Document current-state architecture, data flows, batch schedules, and integration points across legacy ecosystem components.
- Perform impact analysis and complexity assessment for potential transitions to modern platforms.
- AI-Driven Mainframe Modernization
- Apply AI tools and custom AI agentic workflows for automated code analysis, refactoring, and technical debt reduction.
- Develop and fine-tune AI-powered assistants to accelerate system conversion and code translation (e.g., COBOL to Java/Python).
- Apply prompt engineering and context engineering techniques to maximise accuracy and efficiency of LLM-driven modernization work

📌 EY - GDS Consulting - Mainframe Modernization- GEN AI - Senior (Kolkata)
🏢 EY
📍 Kolkata