Senior Penetration Tester

Westpac Group; Sydney; On-site; AUD 150,000 - 190,000; Full time

Job summary

Westpac Group is seeking a senior information security professional in Sydney to advise on penetration testing and vulnerability management across business and IT units. You will perform advanced testing, drive remediation through detailed reporting, and shape security policies, frameworks, and controls across processes and third-party environments.

The role involves deploying security solutions, supporting governance and risk strategies, and promoting security awareness.

Qualifications

• Experience performing advanced web, network, application, mobile and infrastructure level penetration testing.
• Experience in information security, information technology, risk management, or equivalent role.
• Formal certification or education in Penetration Testing (e.g., OSCP, OSWE, OSCE, CREST, HTB CPTS, or advanced SANS certifications).
• Working knowledge of regulatory frameworks such as OWASP, OSSTMM related to Information Security and automated security testing tools and processes.
• Strong expertise in software development and risk analysis / threat modelling.
• Familiarity with modern AI concepts such as LLM security, prompt injection and agentic AI attack surfaces.
• Ability to work both individually and within a team environment and build relationships with stakeholders.
• Solid understanding of one or more Cloud platforms: AWS, Azure, Google Cloud; Containerisation: Kubernetes, Docker, OpenShift.

Responsibilities

• Advise Westpac business and IT units on information security with a focus on penetration testing and vulnerability management.
• Perform penetration testing and drive remediation through detailed reporting; advise on security policies, frameworks and controls across processes and third-party environments.
• Recommend and deploy security solutions; support governance and risk-aligned strategies; contribute to process improvements.
• Communicate security concepts clearly to stakeholders and maintain security documentation and compliance.
• Investigate and report on security incidents; lead and develop a high-performing team aligned with business objectives.

Skills

Penetration testing

Information security

Risk management

Threat modelling

AI security concepts

Cloud platforms

Containerisation

Communication with stakeholders

Education

Penetration testing certifications (OSCP/OSWE/OSCE/CREST/SANS)

Job description

What’s the role?

The role will be responsible for advising Westpac business and IT units on information security, with a focus on penetration testing and vulnerability management.

Your key responsibilities will include performing penetration testing and driving remediation through detailed reporting, while advising on and implementing security policies, frameworks, and controls across business processes, applications, and third-party environments. You will also recommend and deploy security solutions, support governance and risk-aligned strategies, contribute to process improvements, and communicate security concepts clearly to stakeholders.

Additionally, your responsibilities will include maintaining security documentation and compliance, investigating and reporting on security incidents, implementing controls and providing clear insights to stakeholders, promoting security awareness, and leading and developing a high-performing team aligned with business objectives.

What do I need?

• Experience performing advanced web, network, application, mobile and infrastructure level penetration testing.
• Experience in information / application security, information technology, risk management, or equivalent role.
• Experience in identifying and documenting security requirements and writing Penetration Testing reports and communicating identified vulnerabilities to internal stakeholders.
• Formal certification or education in Penetration Testing (e.g., OSCP, OSWE, OSCE, CREST, HTB CPTS, or advanced SANS certifications) is a mandatory requirement for this role.
• Working knowledge of regulatory frameworks such as OWASP, OSSTMM related to Information Security and implementing automated security testing tools and processes.
• Strong expertise in software development and risk analysis / threat modelling.
• Familiarity with modern AI concepts such as LLM security, prompt injection and agentic AI attack surfaces, and how AI can be leveraged to enhance penetration testing methodologies.
• Ability to work both individually and within a team environment and build strong relationships with the internal stakeholders.
• Solid understanding of one or more of the following Cloud platforms: AWS, Microsoft Azure, Google Cloud. Knowledge of Containerisation technologies such as Kubernetes, Docker, Podman and OpenShift is favourable.
• Experience implementing automated security testing tools and processes.

Create your future today

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.