Real job — pulled straight from Westpac’s careers page · Verified July 18, 2026 · No reposts.
Job description
Westpac is hiring a Senior Mainframe Engineer — a full-time, based in Sydney, NSW role. Apply directly on Westpac's careers page below.
Senior Engineer - Mainframe
Location: Sydney, NSW, Australia
Create your best future and join Westpac as a Senior Engineer - Mainframe.
What’s the role?
We are seeking an experienced Senior Mainframe Engineer to support and enhance critical enterprise applications running on IBM z/OS.
Your key responsibilities include:
- Design, develop and support mainframe applications.
- Perform impact analysis, coding, testing and implementation.
- Develop and maintain COBOL, CICS, IMS and DB2 applications.
- Support batch processing using JCL and scheduling tools.
- Investigate and resolve production incidents and performance issues.
- Collaborate with business and technology teams to deliver enhancements and regulatory changes.
What do I need?
- 8+ years of experience in mainframe development.
- Strong experience in COBOL development within large-scale enterprise or banking environments.
- Hands-on experience with IMS DB and IMS DC, including data access, database structures, and program interfaces.
- Good understanding of z/OS mainframe environments.
- Experience across the full software development lifecycle (SDLC), including production support..
- Experience working with CICS, JCL, and VSAM within mainframe environments.
We’re obsessed with becoming our customers' #1 banking partner for life and we’re looking for people who are passionate about helping us achieve that goal. In return, we’re committed to making Westpac the best place to work in the country. Here are just a few of the ways we’re already doing that:
- Special offers on banking products and discounts from top brands, including generous employee-only mortgage rates!
- Flexible work arrangements to help you achieve a greater work/life balance, and a variety of leave options including Culture, Lifestyle and Wellbeing leave.
- Tailored learning and development opportunities to help your grow your career within the bank.
- Lots of opportunities to ‘give back’ to the Community by getting involved in our many volunteering initiatives.
Create your future today
To get started, simply click on the APPLY or APPLY NOW button
We’re all about creating a supportive and inclusive community. We welcome everyone – no matter your age, gender, background, or abilities. We also provide additional support to welcome our veterans, Indigenous Australians and neurodiverse community.
If you need any adjustments during the recruitment process, you can find more information and contact details on our FAQs and how to contact us page, under the ‘Diversity, sustainability and flexibility’ section.
#LI - Hybrid.
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Frequently asked questions
What skills are required for Senior Mainframe Engineer at Westpac?
The required skills for Senior Mainframe Engineer at Westpac include: Cobol, DB2.
What is the seniority level for Senior Mainframe Engineer at Westpac?
Senior Mainframe Engineer at Westpac is a Senior level position.
How do I apply for Senior Mainframe Engineer at Westpac?
You can view the full description and apply for Senior Mainframe Engineer at Westpac on EchoJobs: https://echojobs.io/job/westpac-senior-engineer-mainframe-7zvtr.