Senior Systems Engineer - Mainframe, Application Deployment, SCM

About the role

CommBank is looking for a Senior Systems Engineer to own and improve the engineering platforms and controls that safely move critical mainframe applications from source code to production. The role shapes how established mainframe SCM practices connect with Git, CI/CD, APIs and automation, and works closely with application development, platform engineering, testing and operations teams.

Key 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.
• Build automated build, packaging and deployment processes across 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, and modernise legacy delivery practices without compromising production control.

Required profile

• An engineer who understands that application deployment is more than moving code, and cares about build integrity, quality, traceability and reliable production outcomes.
• Experience across several of the listed areas helps.
• A methodical approach to troubleshooting complex build and deployment problems, with a continuous improvement mindset.
• Ability to collaborate across development, testing, infrastructure and operations while balancing delivery speed with strong production controls.

Required skills

• Mainframe foundations: IBM z/OS, JCL, TSO/E, ISPF, JES2/SDSF, data sets and USS.
• Broadcom Endeavor or comparable mainframe SCM, application lifecycle or deployment technology.
• Understanding of build and release processes: compilers, binders/link-editors, packaging, promotion, deployment and recovery.
• Exposure to Db2, CICS, IMS, MQ or RACF, or similar enterprise mainframe environments.
• Automation with Python, REXX, shell scripting, APIs or CLI-based tooling.
• Modern engineering approaches such as Git, CI/CD, Zowe, z/OSMF, automated testing and quality gates.