What are the responsibilities and job description for the DB2 DBA ( z/OS ) Level II ( 4268 - Ohio ) position at Sharp Decisions?
Job Description: DB2 DBA (z/OS) Level II Location: Marysville, OH (Hybrid)
Key Responsibilities
Key Responsibilities
- 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.