security architect

Summary

An exciting opportunity to join a high-profile enterprise organisation to drive critical enterprise-wide security projects aimed at uplifting the organization's overarching security posture and hygiene. As a key contributor within the architecture team, you will shape secure reference architectures and deliver end-to-end solutions that protect complex systems from conceptual design through to operational handover. Applying a DevSecOps mindset and a strong Zero Trust approach, you will partner with cross-functional delivery teams and business stakeholders to embed best-in-class security controls, elevate threat detection capabilities, and enable resilient, scalable growth.

Key Criteria

• 5+ years of experience in IT solution build, design, or architecture, with a strong focus on cyber security operations, SIEM/SOAR, and cloud security.

• Extensive experience architecting and implementing SecOps platforms utilizing tools like Microsoft Defender, Microsoft Sentinel, Splunk ES, Splunk SOAR, and Cloud Workload Protection.

• Strong knowledge of enterprise cloud environments including AWS, Microsoft Azure, GCP, and M365 Security Services.

• Solid understanding of threat modeling, exposure management, and industry security frameworks such as MITRE ATT&CK, NIST, ISO 27000 series, and ASD Essential 8.

• Demonstrated experience with architecture frameworks like TOGAF or SABSA and tooling such as LeanIX.

• Relevant security certifications preferred (e.g., CISSP, AWS Certified Security - Specialty, AZ-500, or SC-100).

• Strong stakeholder management, negotiation, and communication skills to influence adoption across both technical and business domains.

Key Relationships

• Senior Business & IT Stakeholders (General Managers, Product Owners, Delivery Managers)

• Enterprise Architecture & Security Engineering Teams

• Operational & IT Delivery Teams

• Industry & Technology Partners

Key Responsibilities

• Deliver robust end-to-end solution architectures for enterprise environment and embed systems securely into the broader enterprise integration landscape.

• Define and drive secure implementation strategies for cloud platforms, ensuring alignment across Identity & Access Management, Threat Protection, Cloud Security, and Information Protection.

• Architect, optimize, and scale SIEM and SOAR solutions (Microsoft Sentinel, Splunk ES, Logic Apps) for enhanced threat detection, incident response, and security analytics.

• Develop and maintain enterprise security reference architectures, policies, DLP frameworks, and reusable security design patterns.

• Champion Zero Trust principles, security-by-design, and continuous vulnerability and exposure management across hybrid cloud ecosystems.

• Provide expert advisory and consulting services across business and technical domains to resolve architecture challenges and support stage-gate governance processes.

If this sounds like you, someone you know, or you're ready for a confidential chat regarding your next career step, then apply below and/or send your email to nick.shannon@randstaddigital.com.au. All applications will be reviewed, however due to large demand, detailed feedback may not always be possible.

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