Security Senior Engineer

Westpac; Sydney; Hybrid; AUD 150,000 - 200,000; Full time

Job summary

Westpac, a leading Australian bank, is seeking a Senior Security Engineer for its Application Security team. You will engineer, integrate and operate security capabilities across Westpac’s software development environments to deliver scalable security solutions embedded into development and DevOps platforms.

You will guide and enable engineering teams to build secure software with speed, embedding controls early in the lifecycle and automating vulnerability management at scale.

Qualifications

• Experience with security platforms such as Snyk, GitHub Advanced Security and Wiz.
• Strong working knowledge of GitHub and source-code security integrations.
• Engineering and scripting experience using Python.
• Strong DevOps experience, including integrating security controls into CI/CD pipelines and developer workflows.

Responsibilities

• Engineering, operating and maintaining application security platforms and tooling.
• Implementing automated code analysis, software composition analysis, secrets scanning and software supply-chain security capabilities.
• Integrating security controls into developer environments, GitHub repositories and CI/CD pipelines.
• Embedding automated security controls early in the software development lifecycle.
• Automating vulnerability identification, remediation and prevention at scale.
• Partnering with engineering and platform teams to deliver repeatable security outcomes.
• Providing practical application security guidance to developers and engineering teams.
• Supporting education and enablement initiatives that uplift secure development capability.

Skills

Snyk

GitHub Advanced Security

Wiz

GitHub

Python

DevOps

CI/CD pipelines

Application security

Security automation

Vulnerability management

Shift-left security

Job description

What's the role?

As a Senior Security Engineer within our Application Security team, you’ll engineer, integrate and operate application security capabilities across Westpac’s software development environments.

You’ll deliver scalable, automated security solutions embedded into development and DevOps platforms, helping engineering teams build and maintain secure software with greater speed and less friction. You’ll also provide practical security guidance and help strengthen application security practices across the Group.

You will be responsible for -

• Engineering, operating and maintaining application security platforms and tooling.
• Implementing automated code analysis, software composition analysis, secrets scanning and software supply-chain security capabilities.
• Integrating security controls into developer environments, GitHub repositories and CI/CD pipelines.
• Embedding automated security controls early in the software development lifecycle.
• Automating vulnerability identification, remediation and prevention at scale.
• Partnering with engineering and platform teams to deliver repeatable security outcomes.
• Providing practical application security guidance to developers and engineering teams.
• Supporting education and enablement initiatives that uplift secure development capability.

What do I need?

You’ll be an experienced security engineering professional with strong application security knowledge and the ability to develop automated, scalable security solutions.

Must-have technical skills

• Strong hands‑on experience with security platforms such as Snyk, GitHub Advanced Security and Wiz.
• Strong working knowledge of GitHub and source‑code security integrations.
• Engineering and scripting experience using Python.
• Strong DevOps experience, including integrating security controls into CI/CD pipelines and developer workflows.
• Experience across application security, security automation and vulnerability management.
• Understanding of secure software development and shift‑left security practices.
• Security solution engineering and design experience.

Preferred experience

• Experience working with AI or agentic development technologies.
• Experience in supply chain security and container security.
• Experience owning or supporting security platforms and services.
• Strong technical problem‑solving and communication skills.
• Ability to provide practical guidance and security education to engineering teams.

Why join us?

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 you grow your career within the bank.

• Lots of opportunities to give back to the Community by getting involved in our many volunteering initiatives

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