Cyber Security Lead - Build & Scale Enterprise Security

Symphony Infrastructure Partners Pty Ltd; Adelaide; On-site; AUD 180,000 - 280,000; Full time

Job summary

Symphony Infrastructure Partners Pty Ltd seeks a hands-on Cyber Security Lead to found and grow the cyber security function. You will blend security engineering with governance, risk and compliance for IT and OT, reporting to the CISO and collaborating with internal teams and external partners.

This is a predominantly on-site role with some flexibility, based at Keswick (SA), Melbourne or Sydney offices, offering a path toward senior leadership as the security team expands.

Qualifications

• Proven experience in cyber security or information security with leadership potential.
• Strong knowledge of security operations, risk and compliance.
• Experience with AI-native work practices and AI governance.
• Experience securing IT and OT environments or ability to quickly learn OT concepts.
• Familiarity with AESCSF, ISO 27001, IEC 62443, ASD ISM and ASD Essentials.
• Willingness to undertake Australian Government NV1 clearance.
• Relevant certifications (CISSP, CISM, Security+ or Microsoft security) advantageous.

Responsibilities

• Operate and maintain the Information Security Management System aligned with ASD Essentials and AESCSF 2.0.
• Ensure security controls operate as defined and improve cyber posture and culture.
• Monitor and respond to cyber threats and incidents with the SOC/MDR partner.
• Identify and manage vulnerabilities to drive practical improvements.
• Engineer and maintain security technologies across IT and OT (endpoint, network, cloud).
• Secure email and collaboration platforms via DLP controls.
• Apply GRC practices across IT and OT and respond to audits.
• Prepare executive and board reporting with the CISO.
• Govern and oversee external security service providers.
• Deliver security awareness training and incident response exercises.
• Provide clear, business-focused advice on cyber risks.

Skills

Cyber security

GRC

Security operations

Vulnerability management

Threat detection

Cloud security

OT security

XDR

SASE

DLP controls

AI governance

Incident response

Education

Cyber Security qualification

Tools

Palo Alto Prisma Access

Cortex XDR

Microsoft Purview

Microsoft Azure

Job description

Symphony Infrastructure Partners Pty Ltd seeks a hands-on Cyber Security Lead to found and grow the cyber security function. You will blend security engineering with governance, risk and compliance for IT and OT, reporting to the CISO and collaborating with internal teams and external partners.

This is a predominantly on-site role with some flexibility, based at Keswick (SA), Melbourne or Sydney offices, offering a path toward senior leadership as the security team expands.