System Administrator

DCV Technologies Limited
Charing Cross, United Kingdom
5 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Compensation
£ 143K

Job location

Charing Cross, United Kingdom

Tech stack

Databases
IBM DB2
Disaster Recovery
Mainframes
Performance Tuning
IBM Resource Access Control Facility
Broadcom
Z/OS
Performance Monitor

Job description

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, production mainframe environments

  • Client-facing communication and participation in vendor engagements

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)

Desirable

  • IMS installation or DB2/IMS production support

  • Experience in regulated or enterprise environments

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