Mainframe DBA

Cloudxtreme; Hyderabad, Chennai District, Bengaluru; Hybrid; INR 1,800,000 - 2,200,000; Full time

Job summary

Cloudxtreme in Hyderabad, India is seeking a seasoned Mainframe DBA to provide 24x7 support for DB2 for z/OS, IMS, VSAM and IDMS. You will maintain production and non-production databases, implement backup and failover strategies, and work with app teams on deployments.

The role expects 7+ years of hands-on Mainframe database experience, strong scripting skills, and a focus on security and performance tuning. On-call rotations and cross-functional collaboration are required.

Qualifications

• Bachelor's degree in CS/IT or related field.
• 7+ years of hands-on DBA experience with Mainframe databases.
• Strong knowledge of DB2 for z/OS, IMS, VSAM, IDMS and related tooling.
• Proficient in scripting, tuning, security, and HA/DR strategies.

Responsibilities

• Provide 24x7 production support for Mainframe databases with on-call duties.
• Administer, monitor, and maintain DB environments in prod and non-prod.
• Implement backup, recovery, tuning, HA and DR strategies.
• Proactively identify bottlenecks and optimize performance.
• Automate operations using JCL, REXX, Python or Shell scripts.
• Ensure security and compliance; manage patches, upgrades, and migrations.
• Collaborate with app and infra teams for deployments and issue resolution.
• Document procedures and resolutions for knowledge sharing.

Skills

Mainframe DBA expertise

DB2 for z/OS

DB performance tuning

Scripting (REXX/Python)

JCL

Security/compliance

Azure/GCP knowledge

Backup/DR strategy

Education

Bachelor's degree in CS/IT

Tools

Dynatrace

Azure Monitor

Terraform

Ansible

Nagios

Job description

Role & responsibilities

Key Responsibilities -

• Provide 24x7 production support for Mainframe databases (such as DB2 for z/OS, IMS, VSAM, or IDMS). by participating in rotational shifts and on-call duties.
• Administer, monitor, and maintain Mainframe databases in production and non-production environments.
• Implement and manage backup, recovery, tuning, high availability and DR (Disaster Recovery) strategies.
• Perform routine health checks, proactively identify performance bottlenecks, and optimize queries and database configurations.
• Automate routine operations and reporting using Mainframe utilities, scripting languages, or job scheduling tools (JCL, REXX, Python, Shell, etc.).
• Manage database security, user permissions, and compliance with organizational policies.
• Coordinate and execute database patching, upgrades, and migrations with minimal downtime.
• Collaborate with application and infrastructure teams to support deployment activities and resolve database-related issues.
• Monitor and resolve incidents, including root cause analysis and documentation of resolutions.
• Automate routine operational tasks using scripts or management tools.
• Maintain accurate documentation of database procedures, configurations, and support processes for internal knowledge sharing.

Required Skills and Experience

• Bachelors degree in Computer Science, Information Technology, or related field.
• 7+ years of hands-on experience as a DBA managing Mainframe database environments(e.g., IBM DB2 for z/OS, IMS, VSAM, IDMS. etc)
• In-depth knowledge of Maintenance DB architecture, scaling, global distribution, partitioning, consistency models, and throughput management.
• Strong scripting and database troubleshooting skills.
• Proactively analyze and optimize database performance—tuning queries, indexes, and configurations.
• Enforce security best practices, including authentication, access control, data encryption, and compliance monitoring
• Proficiency with Mainframe utilities, JCL, scripting (REXX, Python, or other), and automation tools.
• Support cloud database deployments, migrations, and upgrades within Azure and GCP environments,
• Automate and optimize routine operational tasks using scripting (Python, shell scripting, IaC etc) and Azure automation tools.
• Deep knowledge of high availability (HA), replication, backup/recovery, and failover strategies for Mainframe.
• Experience with database monitoring tools - Dynatrace, Azure Monitor, Nagios etc and automation frameworks such as Ansible and Terraform .
• Solid understanding of database security best practices.
• Proven experience with patching, upgrading, and migrating databases.
• Ability to manage multiple priorities in a fast-paced operations setting.
• Ability to support DB audit requirements and license management.
• Excellent communication and documentation skills.

Preferred Qualifications

• Certifications in Mainframe DBA
• Experience supporting modernization or migration projects (Mainframe to distributed/cloud platforms).
• Exposure to cloud-based database services (Azure, GCP etc).
• Experience with automation tools (e.g., PowerShell, Ansible, Terraform, Shell scripting).
• Exposure to additional Mainframe technologies (IMS, CICS, VSAM, etc.).