Lead Security Architect

About the role

The Lead Security Architect will shape Singtel’s enterprise‑wide security architecture, driving AI‑enabled, Zero‑Trust, infrastructure and application security strategies across the organization.

Key responsibilities

• Define and execute AI, Zero‑Trust, infrastructure and application security architecture strategies.
• Oversee implementation of security reference architectures, design patterns and threat models.
• Collaborate with enterprise architects, solution designers, DevSecOps, infrastructure teams and executive leadership to deliver secure, resilient solutions.
• Align diverse technology ecosystems and business requirements to a common Zero‑Trust framework.
• Report to the Head of Information Security Architecture and Risk Assessment.

Required profile

• Senior cybersecurity leader with extensive experience in enterprise security architecture.
• Proven ability to work across complex technology stacks and influence multiple stakeholders.
• Strong communication skills to partner with IT, enterprise units and executive teams.

Required skills

• AI security architecture
• Zero‑Trust architecture
• Infrastructure security
• Application security
• Threat modeling
• Security reference architecture
• Design patterns
• Enterprise architecture
• DevSecOps
• Cloud security
• Network security