Role: Mainframe DBA – IMS & DB2 z/OS (Modernization Focus)

Location: Bangalore / Gurgaon

Experience: 5–9 Years

Employment Type: Full-Time (Hybrid)

About the Role

We are hiring a Mainframe DBA to manage and optimize mission-critical IMS v15 and DB2 z/OS v12 databases supporting core business applications, while also contributing to active modernization initiatives — including migration from z/OS to Postgres and preparation for zDB2 v13. This role spans dev, test, pre-prod, and production data-sharing environments and supports high-volume, high-availability systems.

Key Responsibilities

- Design, build, and optimize IMS and DB2 z/OS databases across the full workplace lifecycle
- Perform mainframe access path re-engineering and optimization for large-scale databases
- Convert logical database models to physical implementations
- Administer database security in line with zDBMS standards
- Execute backups, reorganizations, database analysis, diagnosis, and error resolution
- Drive automation and implement new database features/capabilities
- Support application migration from z/OS to Postgres




- Convert VSAM tablespaces to Universal Table Space in preparation for zDB2 v13 and petabyte-scale data growth
- Provide production support for critical applications including WCC Services, Acquisitions, Remittances, Accounts Receivable, Merchant, Loyalty, and Corporate systems (spanning tens of thousands of database instances)
- Mentor and guide junior DBAs

Required Skills & Experience

- 5–9 years of experience as a Database Administrator with hands-on IMS and DB2 z/OS expertise
- Strong working knowledge of IMS FF/FP databases
- Proven experience in mainframe database performance tuning and access path optimization
- Hands-on experience with BMC Admin Toolset (Change Manager), IBM Data Studio, and IBM Visual Studio
- Familiarity with IBM/BMC utilities for IMS and DB2 z/OS
- Understanding of DB2/VSAM-to-UTS conversion concepts (preferred)
- Exposure to z/OS-to-Postgres or other cloud/open-platform migration work (preferred)
- Bachelor's degree in Information Management, Computer Science, or a related field

📌 MainframeDBA (Bengaluru)
🏢 The AES Group
📍 Bengaluru