Head of Operational Security Engineering & Resilience

Optus; Sydney; Hybrid; AUD 350,000 - 600,000; Full time

Benefits offered by this job

Competitive remuneration

Flexible working (3 days in office, 2/

Parental leave and family support

Job summary

Optus Enterprise is seeking a Senior Director of Operational Security Engineering to lead cross-domain security across Network Operations, AI-driven services and security-by-design programs. You will set strategy, governance and assurance frameworks.

The role focuses on embedding security into data, cloud and automation, building resilient, production-ready capabilities while guiding executive stakeholders and nurturing a security-first culture.

Qualifications

• Executive leadership across telecommunications, cyber security and large-scale tech environments.
• Leadership of enterprise operational security engineering and resilience capabilities.
• Strong understanding of Zero Trust, cloud and AI security.
• Ability to lead cross-domain security standards and risk reduction roadmaps.

Responsibilities

• Lead the Operational Security Engineering strategy, capability roadmap and maturity uplift across Network Operations.
• Define and embed secure-by-design standards, operating models and assurance frameworks across network, data, AI, automation and OSS environments.
• Translate cyber risks and business priorities into a portfolio of security engineering, resilience and assurance initiatives.
• Drive the integration of security controls and Zero Trust principles across network, cloud, AI, automation and operational platforms.
• Lead the development of automated security detection, orchestration, response and containment capabilities to reduce risk and minimise business impact.
• Establish operational security assurance, control validation and resilience programs, ensuring capabilities remain secure, recoverable and production-ready.
• Oversee governance, risk reporting, performance metrics and continuous improvement activities, prioritising efforts based on threat intelligence and operational outcomes.
• Provide executive leadership and strategic advice on cyber risk and security posture while building a high-performing security engineering capability and fostering a security-by-design culture.

Skills

Executive leadership

Operational security

Security engineering

Zero Trust

Job description

Optus Enterprise is seeking a Senior Director of Operational Security Engineering to lead cross-domain security across Network Operations, AI-driven services and security-by-design programs. You will set strategy, governance and assurance frameworks.

The role focuses on embedding security into data, cloud and automation, building resilient, production-ready capabilities while guiding executive stakeholders and nurturing a security-first culture.