Principle Security Architect

Talenza; City of Melbourne; On-site; AUD 180,000 - 240,000; Full time

Job summary

Talenza in Melbourne is seeking a Security Architect to lead an in-house security team, focusing on SIEM transformation, advanced monitoring, and acting as the technical authority on cyber security across the organisation.

Reporting to the CISO, you will own architecture from strategy to the tools used daily, engage with executives and stakeholders, and drive security controls, incidents, and training to uplift cyber safety.

Qualifications

• Proven experience leading or delivering SIEM implementations.
• Strong background in security architecture and engineering best practices.
• Excellent stakeholder management and communication; credibility with technical and business audiences.
• Ability to operate independently, manage competing priorities, and bring clarity to high-pressure situations.

Responsibilities

• Leading the evaluation, selection and implementation of a new SIEM platform as we move away from the current solution.
• Strengthening security monitoring and detection capabilities across the organisation.
• Architecting, planning and overseeing the implementation and continuous improvement of security measures protecting data, systems and networks.
• Setting security strategy and establishing best practices, standards and policies aligned with business objectives and regulatory requirements.
• Acting as escalation point and senior technical authority for the security engineering team; leading response to complex incidents.
• Building credibility with technical and business stakeholders, including executive level, to drive security outcomes.
• Reviewing audit findings and ensuring timely remediation.
• Conducting and overseeing security assessments of in-house and third-party applications.
• Designing and delivering security awareness training to uplift cyber safety capability.

Skills

SIEM expertise

Security architecture

Security engineering

Stakeholder management

PowerShell scripting

Windows Server

Active Directory

Linux/Unix

Incident response

Tools

SIEM platform

Job description

We're looking for a Security Architect to join an in-house security team of six, reporting to the Chief Information Security Officer. This is a senior, hands‑on opportunity for an experienced security practitioner to lead a SIEM transformation, strengthen security monitoring and detection capability, and act as the technical authority on cyber security across the organisation.

All security engineering capability is delivered in‑house, so this role carries genuine ownership, from architecture and strategy through to the tools the team uses every day. You'll work closely with stakeholders across the business, so this environment will suit someone as comfortable in an executive conversation as they are in the detail of a security control.

What You’ll Be Doing

• Leading the evaluation, selection and implementation of a new SIEM platform, as we transition away from our current solution
• Strengthening our security monitoring and detection capabilities across the organisation
• Architecting, planning and overseeing the implementation and continuous improvement of security measures protecting our data, systems and networks
• Setting security strategy and establishing best practices, standards and policies aligned with business objectives and regulatory requirements
• Acting as the escalation point and senior technical authority for the security engineering team, and leading the response to complex, high‑impact security incidents
• Building credibility and influence with technical and business stakeholders, including at executive level, to drive security outcomes across the business
• Reviewing audit findings and ensuring timely, effective remediation
• Conducting and overseeing security assessments of in‑house and third‑party applications
• Designing and delivering security awareness training to uplift cyber safety capability across the organisation

What We’re Looking For

• Proven experience leading or delivering SIEM implementations, with a strong background in security monitoring and detection
• Strong background in security architecture and security engineering best practices
• Exceptional stakeholder management and communication skills, with the credibility and gravitas to influence decision‑making across both technical and business audiences
• A demonstrated ability to operate independently, manage competing priorities, and bring clarity to complex or high‑pressure situations

Highly regarded:

• A consulting background, given the level of stakeholder engagement and influence this role requires
• Experience in financial services or another regulated industry
• Deep technical grounding across core infrastructure, Windows Server and Active Directory, networking, scripting (PowerShell), Linux/UNIX, Privileged Access Management, firewall/WAF administration
• The two things that matter most for this role are SIEM expertise, real, proven experience leading detection and monitoring capability, not just operating an existing platform and gravitas: the ability to walk into a room with senior stakeholders and be the credible, trusted voice on security.