Senior Mainframe Systems Engineer - CI/CD & Automation Lead

Commonwealth Bank of Australia; Sydney; On-site; AUD 140,000 - 190,000; Full time

Job summary

Commonwealth Bank of Australia in Sydney is seeking a Mainframe Systems Engineer to own and improve platforms that manage application source code, builds and deployment across enterprise mainframe environments.

You will blend established mainframe SCM practices with modern tooling such as Endeavor, Git, CI/CD, APIs and automation to deliver controlled, repeatable, traceable software delivery with strong production safeguards.

Qualifications

• Strong mainframe foundations across IBM z/OS, JCL, TSO/E, ISPF, JES2/SDSF, data sets and USS.
• Experience with Broadcom Endeavor or comparable mainframe SCM and deployment tech.
• Understanding of build and release processes, compilers, binders/link-editors, packaging, promotion, deployment and recovery.
• Exposure to Db2, CICS, IMS, MQ or RACF in enterprise mainframe environments.
• Automation capability using Python, REXX, shell scripting, APIs or CLI tools.
• Familiar with Git, CI/CD, Zowe, z/OSMF and quality gates.

Responsibilities

• Engineer, administer and enhance mainframe application lifecycle and deployment platforms, including Broadcom Endeavor or equivalent SCM technology.
• Design and maintain source, build, promotion and deployment pathways, including environments, stages, approvals and release controls.
• Engineer automated build, packaging and deployment processes across technologies including COBOL, PL/I, Assembler and JCL.
• Improve Endeavor processors, exits and integrations with enterprise engineering tooling.
• Diagnose complex build, promotion and deployment issues across development, test and production environments.
• Strengthen release integrity through versioning, traceability, reproducible builds, deployment evidence, rollback capability and audit controls.
• Reduce manual activity through APIs, scripting and automation, while integrating established SCM controls with Git and CI/CD.
• Identify opportunities to simplify and modernise legacy delivery practices without compromising resilience or production control.

Skills

Python

REXX

Shell scripting

APIs

Automation

Tools

Broadcom Endeavor

Git

CI/CD tooling

Zowe

z/OSMF

Job description

Commonwealth Bank of Australia in Sydney is seeking a Mainframe Systems Engineer to own and improve platforms that manage application source code, builds and deployment across enterprise mainframe environments.

You will blend established mainframe SCM practices with modern tooling such as Endeavor, Git, CI/CD, APIs and automation to deliver controlled, repeatable, traceable software delivery with strong production safeguards.