(08 / 10 / 2025) DB2 Systems programmer Z / os

Role : DB2 Systems programmer : L3 ( full time)

Location : Bangalore, Noida, Chennai ( Hybrid)

Work Mode : Hybrid

Client : HCL

Payroll : Teceze

Job Summary : We are seeking a highly skilled and dedicated Mainframe DB2 Systems Programmer to join our core infrastructure team. This critical role involves the installation, maintenance, and upgrade of IBM DB2 for z / OS subsystems, ensuring their optimal performance, availability, and stability. The successful candidate will work closely with DB2 DBAs, z / OS Systems Programmers, application development teams, and operations staff to provide expert-level support for our enterprise-wide DB2 environment.

Key Responsibilities :

• DB2 Subsystem Management :
• Plan, prepare, and execute DB2 for z / OS subsystem installations, upgrades, and migrations (e.g., from DB2 12 to DB2 13, or between Function Levels).
• Apply IBM DB2 maintenance (PTFs, APARs, SPEs) regularly using SMP / E to ensure system integrity, resolve issues, and enhance functionality.
• Configure and maintain DB2 PARMLIB, DSNZPARM, and other critical DB2 initialization parameters.
• Perform DB2 subsystem restarts (IPLs, Quiesce / Start) as required for maintenance and configuration changes.
• DB2 Tool and Utility Support :
• Install, configure, upgrade, and maintain IBM DB2 utilities (e.g., REORG, RUNSTATS, COPY, LOAD, UNLOAD).
• Install and support various Independent Software Vendor (ISV) tools for DB2 (e.g., BMC DB2 tools, Broadcom / CA DB2 tools, IBM DB2 Admin Tool, IBM Data Studio, etc.) used for performance monitoring, backup / recovery, administration, and development.
• Troubleshoot issues related to DB2 utilities and ISV tools.
• Performance Monitoring and Tuning :
• Monitor DB2 subsystem health, performance, and resource utilization using tools like Omegamon for DB2, DB2 PM, SMF, RMF, and other performance monitors.
• Analyze performance data to identify bottlenecks within DB2 and recommend tuning improvements at the subsystem, buffer pool, and thread level.
• Assist DBAs and application teams in optimizing SQL queries and application performance.
• Problem Diagnosis and Resolution :
• Provide expert-level support for DB2 incidents, including problem determination, diagnosis (e.g., analyzing dumps, logs, traces), and resolution in a timely manner.
• Collaborate with IBM support and ISV vendors to resolve complex issues.
• Participate in on-call rotation for 24 / 7 support of critical DB2 environments.
• Collaboration and Coordination :
• Work closely with DB2 DBAs to understand their requirements, provide technical guidance, and ensure the smooth operation of database environments.
• Collaborate with z / OS Systems Programmers on shared resources, system-level issues, and overall mainframe health.
• Liaise with application development teams for DB2-related changes, new application deployments, and problem resolution.
• Coordinate with mainframe operations for scheduled maintenance and incident response.
• Automation and Scripting :
• Develop and maintain JCL, REXX, CLISTs, and other scripts for DB2 administration, monitoring, and automation tasks.
• Disaster Recovery and Business Continuity :
• Assist in the planning, testing, and execution of disaster recovery procedures for DB2 subsystems.
• Ensure the high availability and recoverability of critical DB2 environments.
• Documentation and Best Practices :
• Create and maintain comprehensive documentation for DB2 installations, configurations, operational procedures, and troubleshooting guides.
• Adhere to ITIL best practices for change management, incident management, and problem management within the DB2 domain.
• Security and Compliance :
• Implement and enforce security best practices within DB2, working with security administrators (RACF / ACF2 / Top Secret) to define and manage DB2 security profiles.
• Ensure compliance with internal security policies and external regulatory requirements for DB2 data.

Required Skills and Experience :

Desired Skills and Experience (Plus Points) :