Salary: £15,000 - 19,800 per year Requirements: Strong experience as a DB2 System Administrator / Systems Programmer DB2 for z/OS (not LUW or distributed databases) z/OS internals and mainframe infrastructure SMP/E installation and maintenance DB2 performance tuning and subsystem optimisation Mainframe security tools (RACF, ACF2, Top Secret) Broadcom / CA tooling experience (SYSVIEW, Platinum) 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, production mainframe environments Client-facing communication and participation in vendor engagements Technologies: IBM Support Security More: We are 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 will work on critical production systems, owning DB2 subsystem health, upgrades, tuning, and recovery while collaborating with infrastructure, security, and vendor teams. This is a hybrid contract role with a competitive daily rate. last updated 8 week of 2026