Description
Role Overview We are looking for an experienced Senior Mainframe DBA having atleast 7+ years of experience to join our team, providing round-the-clock (24x7x365) database administration and operational support for enterprise Mainframe database environments.
The ideal candidate will have a strong track record in troubleshooting, performance tuning, and database operations of Mainframe on on-premise environments.
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 databaserelated 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 performancetuning 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.).
(ref:hirist.tech)
