Head of Information Security/CISO

Talenza; City of Brisbane; On-site; AUD 150,000 - 200,000; Full time

Job summary

Talenza is seeking a security leader for a large organization in Brisbane to enhance its cyber security maturity. This role requires directing the delivery of a long-term strategy while strengthening secure practices and guiding teams towards risk reduction.

Candidates must possess strong technical skills in cloud security and operational technology, capable of managing executive conversations. This position offers significant influence over strategic investments in security to drive business outcomes.

Qualifications

• Comfortable moving between executive conversations and technical discussions.
• Experience in driving risk-reduction initiatives.
• Pragmatic approach to cybersecurity.

Responsibilities

• Develop and deliver the long-term cyber security strategy and roadmap.
• Strengthen secure software engineering practices.
• Mature vulnerability management and incident readiness capabilities.
• Maintain compliance with regulatory and critical infrastructure obligations.
• Mentor and develop the existing cyber security team.

Skills

Cloud security (AWS and/or Microsoft environments)

Secure software development and DevSecOps

Operational technology or critical infrastructure security

Security operations and incident response

Regulatory and governance frameworks

Leading teams and influencing without authority

Job description

Talenza has partnered with a large complex critical infrastructure organization on the search for a security leader to join a large, complex organization operating at the intersection of cloud, software engineering, and operational technology environments.

Reporting to the executive leadership team, this role will lead the next phase of the organization’s cyber security maturity journey, evolving the security function from foundational capability to a more targeted, risk-driven approach.

This is a highly visible leadership role requiring an individual who can operate strategically while remaining close to execution and delivery.

About the Role

The organization has already delivered the majority of its existing cyber security roadmap. The next phase is focused on prioritization, business enablement, and ensuring security investment is directed towards initiatives that materially reduce risk.

Key responsibilities include:

• Develop and deliver the long-term cyber security strategy and roadmap.
• Strengthen secure software engineering practices across in-house development teams.
• Build a more integrated approach to IT and Operational Technology (OT) security.
• Mature vulnerability management, identity security, and incident readiness capabilities.
• Drive improvements in data protection, classification, and governance.
• Maintain compliance with regulatory and critical infrastructure obligations.
• Lead strategic vendor and consultancy engagements.
• Mentor and develop the existing cyber security team.
• Influence stakeholders across engineering, operations, and executive leadership.

About You

You are a technically credible security leader who is comfortable moving between executive conversations and technical discussions.

You bring experience across:

• Cloud security (AWS and/or Microsoft environments)
• Secure software development and DevSecOps
• Operational technology or critical infrastructure security
• Security operations and incident response
• Regulatory and governance frameworks
• Leading teams and influencing without authority

Most importantly, you take a pragmatic approach to cyber security and focus on implementing controls that genuinely reduce risk and support business outcomes.

Why This Role?

This opportunity offers the chance to:

• Shape a long-term cyber strategy through to 2032.
• Influence security across cloud, software, and OT environments.
• Work within a collaborative, low-ego leadership culture.
• Join an organization investing heavily in technology, AI, and security capability.
• Play a visible role in business growth and resilience.

For a confidential discussion, please apply or reach out directly to Chelsey Costello.