System Administrator

Mainframe DB2 System Administrator (Contract)

We’re recruiting an experienced Mainframe DB2 System Administrator to support a large, enterprise-scale IBM Z environment. This is a hands-on role focused on DB2 for z/OS system-level administration, availability, performance, and resilience.

You’ll work on critical production systems, owning DB2 subsystem health, upgrades, tuning and recovery, while collaborating with infrastructure, security and vendor teams.

Key Responsibilities

* DB2 for z/OS installation, maintenance and upgrades using SMP/E

* Applying PTFs and managing DB2 subsystem lifecycle

* Performance monitoring and tuning (ZPARMS, buffer pools, EDM pools)

* Backup, recovery and disaster recovery for DB2 catalog and directory

* Administration of Broadcom / CA tools (Platinum, SYSVIEW for DB2)

* Implementing and managing DB2 security via RACF, ACF2 or Top Secret

* Supporting high-availability, prod...