DBDBA ( z​/OS ) Level II; Ohio

Job Description

DB2 DBA (z/OS) Level II,

Location:

Marysville, OH (Hybrid)

• Meet with application teams to understand requirements and recommend high-level direction and approach to upcoming projects.
• Fine-tune database systems to enhance performance, scalability, and reliability, including query optimization, indexing, and caching.
• Monitor database performance using built-in and third-party tools; identify and resolve bottlenecks through tuning and configuration adjustments.
• Utilize monitoring tools to track database health, performance metrics, and security events; configure alerts for potential issues.

• Act as the primary DBA contact during application onboarding, upgrades, and major enhancements.
• Monitor DB2 subsystem performance (CPU, I/O, buffer pools, locking, queries).
• Analyze and resolve performance issues using tools such as Omegamon, EXPLAIN, RMF, SMF, and native DB2 utilities.
• Perform SQL performance tuning and index optimization in collaboration with application teams.
• Plan and execute DB2 maintenance activities including PTFs, service packs, and version upgrades.
• Proactively identify risks and improvement opportunities to ensure high availability and reliability.

• 5–10 years of hands-on DB2 for z/OS DBA experience in large enterprise environments.
• Experience supporting critical production systems with 24x7 availability requirements.
• Strong experience in performance tuning, database utilities, and mainframe operations.
• Experience working on large-scale projects and coordinating with cross-functional teams.
• Deep knowledge of DB2 z/OS architecture, subsystems, utilities, logging, and recovery.
• Strong SQL tuning and execution plan analysis skills.
• Experience with monitoring tools (e.g., Omegamon) and mainframe performance metrics.
• Understanding of z/OS concepts including datasets, JCL, batch processing, and scheduling.
• Strong knowledge of SOX, audit processes, and database security best practices.