Job Description
Mainframe · COBOL · IMS · DB2 · AWS · Go · Python
Level: Senior (8–12 years)

Senior Mainframe Developer – Legacy Platform & Modernization (COBOL, IMS, DB2, AWS, Go, Python)
Location: Hyderabad - hybrid
Experience: 8–12 years
Tech Stack: Mainframe (COBOL, IMS, DB2, JCL, VSAM, CICS), AWS, Go, Python, AI-Assisted Modernization
Role Overview
We are looking for a Senior Mainframe Developer with deep, hands-on expertise in COBOL, IMS, and DB2 to support and evolve our core mainframe platform. This role has two parts that carry equal weight: staying hands-on with the mainframe systems that run the business today, and building enough fluency in AWS, Go, and Python to identify and help shape realistic opportunities for modernization and transformation. You will be one of the primary people who understands how the current platform actually works, and you will use that understanding to help the organization move it forward.
Key Responsibilities
Design, develop, maintain, and support COBOL applications on IBM mainframe (z/OS),



including both batch and online (CICS/IMS) programs
Work hands-on with IMS (DB/DC) and DB2 for mainframe data access, including IMS segment/database design, DB2 schema design, SQL, and performance tuning
Build and maintain deep functional and technical knowledge of the existing mainframe platform, including business logic embedded in legacy COBOL and JCL code
Support production mainframe systems: troubleshoot, debug, and resolve incidents across batch and online processing
Partner with architecture and platform teams to identify and assess realistic opportunities for mainframe modernization and transformation toward cloud-native architectures (AWS, Go, Python)
Contribute to modernization initiatives such as code and data migration, re-platforming, and API-enablement of legacy mainframe functionality
Build proof-of-concepts and prototypes in Go and/or Python to validate modernization approaches for specific mainframe components
Document cu

📌 Senior Mainframe Developer (Hyderabad)
🏢 Simplify AlphaTM
📍 Hyderabad