Director, Cloud Application & Infrastructure Security

Apply now »

Date: 1 Apr 2026

Location: Sydney, Australia

Company: Singtel Group

 

Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions. 

 

The Director Cloud & Application Security Platform Engineering leads the engineering, operations, and reliability of Optus’s cloud and application security platforms. The role manages a team of platform engineers and architects delivering cloud security posture management, DevSecOps automation, security as code solutions, application security testing, and enterprise encryption services to enable secure cloud adoption and software development. 

This position ensures developers can deploy securely by default through automated infrastructure as code, CI/CD security controls, container security platforms, and continuous multi cloud security monitoring across AWS, Azure, and GCP. As a strategic platform leader, the Director drives security as code and shift left practices, balancing strong security controls with developer experience, agility, and business outcomes. 

What You’ll Do  

  • Lead engineering, operations, and reliability of cloud security across AWS, Azure, and GCP. 

  • Provide continuous cloud risk visibility via integrated monitoring. 

  • Build DevSecOps and security as code capabilities.  

  • Embed application security at scale  

  • Lead encryption strategy and high‑performing teams.  

 

 

What makes you perfect for the role? 

  • Tertiary qualification in Computer Science, Information Security, Software Engineering or similar. 

  • 10+ years’ information security experience with deep expertise across cloud security, DevSecOps, CI/CD security, and secure software development. 

  • Proven multi‑cloud and platform capability with hands on experience securing AWS, Azure, and GCP  

  • Expertise in application security testing , encryption, key management, PKI, and cloud‑native security services. 

  • Strong leadership and influence in leading high performing technical teams, with a developer centric mindset and a highly collaborative approach. 

 

 

What’s in it for you? 

  • Competitive remuneration and employee discounts. Make life easier (and more affordable) with $80 monthly credit and 25% off Optus products and unique shopping discounts with our retail partners. 

  • Flexible working arrangements with opportunities to work three days in the office, two days remote or home. 

  • Competitive leave policies, including additional 'Connected’ days to focus on culture, family, health, community, or whatever’s important to you. 

  • We support growing families with inclusive, carer-neutral paid Parental Leave of up to 16 weeks. 

  • Direct your own development and build future-ready skills with Optus U’s industry-focused micro-credentials, developed with La Trobe and Macquarie Universities. 

  • Build meaningful connections through employee-led networks and diversity initiatives including Culture Connect, Elevate Women, Disability Network and Express Yourself (LGBTQIA+). 

  • Put your wellbeing first with free access to counselling and support services, 24/7 — in-person, by phone, SMS, or video. 

 

 

At Optus, we are strengthened by others and that means valuing diversity and saying ‘yes’ to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. We also want to do our best to make our recruitment process inclusive. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email AccessibleRecruitment@optus.com.au or call 1800 309 170. We're here to help. When you contact us, please advise your preferred method of contact and we will be in touch within 48 hours. 

 

For more information on Diversity, Inclusion & Belonging at Optus, please visit https://www.optus.com.au/about/inclusion-diversity