Mainframe Database Administrator

H3 Technologies • IT Consulting & Digital Transformation • 25 days ago
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Salary
≈ $17k – $39k per year (Estimated)
Location
In office (Bengaluru, Gurgaon)
Seniority
Senior · 5+ years exp

First seen by Alion on Sep 22, 2026.

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H3 Technologies

Empower Your Business with Future-Ready IT Solutions. h3 Technologies, LLC is dedicated to providing innovative IT solutions that elevate your business to new heights. Our team of experts is committed to helping you harness the power of technology to drive growth and success.
h3-technologies.com • HQ: Bengaluru, India • Custom Software Development • IT Consulting & Digital Transformation
Tech stack of H3 Technologies

Job Title : Mainframe DBA.

Location : Bangalore / Gurgaon.

Experience : 5 - 9 Years.

Job Description :

We are looking for an experienced Mainframe DBA with strong expertise in DB2 z/OS and IMS to support mission-critical databases across development, testing, pre-production, and production data-sharing environments. The role involves database design, optimization, break-fix support, security administration, automation, and implementation of new database features.

Key Responsibilities :

- Design, administer, optimize, and support DB2 z/OS v12 and IMS v15 databases.

- Work with IMS FF/FP databases and DB2 z/OS data-sharing environments.

- Convert logical database models into physical database designs.

- Perform access path re-engineering and optimization for large-scale databases.

- Administer database security in accordance with zDBMS standards.

- Perform backups, reorganizations, database analysis, and troubleshooting.

- Diagnose and resolve database errors and performance issues.

- Use BMC Admin tools, including Change Manager, for database administration.

- Work with IBM Data Studio, IBM utilities, and BMC utilities for DB2 and IMS.

- Support database feature implementations, automation, and break-fix activities.

- Drive/support application migration initiatives from z/OS to PostgreSQL.

- Support conversion of VSAM tablespaces to Universal Table Spaces (UTS) in preparation for DB2 z/OS v13 and large-scale database growth.

- Support mission-critical applications and large database environments.

- Collaborate with application, infrastructure, and development teams.

- Mentor junior DBAs and provide technical guidance.

Required Skills :

- DB2 z/OS

- IMS / IMS DB

- IMS FF/FP

- Mainframe Database Administration

- Database Design & Modeling

- Access Path Optimization

- DB2 Performance Tuning

- DB Security Administration

- Backup & Recovery

- Reorg & Database Utilities

- BMC Admin Toolset / Change Manager

- IBM Data Studio

- IBM/BMC DB2 & IMS Utilities

- VSAM / Universal Table Spaces

- PostgreSQL migration exposure

Preferred Qualification :

- Bachelor's degree in Computer Science, Information Management, or a related field.

Skills

Mainframe, DBA, DBA Support, DB2, z/OS, Database Design, BMC, Database Performance Tuning, VSAM

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