Senior Mainframe Storage Engineer - AI-Driven Automation

Commonwealth Bank; Sydney; On-site; AUD 120,000 - 180,000; Full time

Job summary

Commonwealth Bank is seeking an experienced Mainframe Platform Engineer to join the team overseeing IBM Z infrastructure, z/OS systems and storage platforms that underpin essential banking services.

You’ll work across the mainframe technology spectrum, bringing deep expertise while expanding capability in adjacent areas like hardware, automation and AI-assisted engineering, ensuring high availability, resilience and secure performance.

Qualifications

• Experience in mainframe infrastructure engineering, systems programming or storage engineering.
• Strong engineering judgement and ability to learn unfamiliar technologies.

Responsibilities

• Engineer and enhance enterprise IBM Z, z/OS and mainframe storage infrastructure with emphasis on availability, resilience, security and performance.
• Support hardware installations, upgrades, capacity changes, storage migrations and technology refreshes.
• Engineer storage infrastructure including DASD, storage subsystems, logical volumes, FICON and SAN connectivity.
• Analyse storage utilisation, I/O performance, channel activity and system capacity to identify and address constraints.
• Diagnose complex hardware, storage, OS and performance issues and drive permanent remediation.
• Support storage replication, disaster recovery and resilience capabilities and participate in recovery testing.
• Develop automation and tooling to improve provisioning, monitoring, maintenance and operational processes.
• Explore AI-assisted engineering for troubleshooting, automation and documentation.

Skills

Mainframe infra

Systems programming

Storage engineering

Automation

Python

Ansible

AI-assisted eng.

Tools

RMF

SMF

OMEGAMON

JES2

TSO/E

ISPF

JCL

GDPS

Job description

Commonwealth Bank is seeking an experienced Mainframe Platform Engineer to join the team overseeing IBM Z infrastructure, z/OS systems and storage platforms that underpin essential banking services.

You’ll work across the mainframe technology spectrum, bringing deep expertise while expanding capability in adjacent areas like hardware, automation and AI-assisted engineering, ensuring high availability, resilience and secure performance.