Security Architect

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Date: 2 Feb 2026

Location: Macquarie Park, 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. 


 
Join Optus as a Security Architect, where you’ll design secure, compliant solutions for Government customers and maintain architectural integrity across complex environments. This senior role involves developing security frameworks, advising on risk management, and ensuring compliance with ISM and PSPF standards. If you have deep expertise in security architecture and a passion for delivering robust solutions, this is your opportunity to make an impact 


Your day-to-day will consist of  

  • Review ICT solution proposals, provide guidance and assistance to ensure security architecture principles are incorporated, appropriate, and meet ISM requirements. 

  • Attend meetings with clients and stakeholders, providing guidance and advice to achieve security outcomes. 

  • Conduct security risk assessments relating to IT solution designs and proposed solutions. 

  • Identify, assess, and mitigate security risks to the IT environment, providing appropriate treatments to reduce risks in line with government regulations and industry standard processes. 

  • Ensure best practice security architectural methodology is continually being developed, refined, and implemented. 

  • Develop and maintain architecture patterns, templates, and processes to standardise related artifacts, review and approval processes within the broader security framework. 

  • Support, security Certification, Accreditation, and ensure critical deliverables are delivered to the required standard. 

  • Work closely with internal and external stakeholders, including government agencies, to ensure a coordinated approach to security. 


 

What makes you perfect for the role? 

  • Australian citizen as the role requires clearance with AGSVA baseline, with a view of attaining and NV1 

  • TOGAF and/or SABSA qualifications highly regarded 

  • Degree or equivalent experience qualified specialising in Cyber Security / Information Security disciplines 

  • Extensive experience working as a Cyber Security Architect 

  • Prior experience within a federal government or large complex organisation highly regarded


 

The good stuff…. | 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.  

  • Vibrant and collaborative office campus that includes cafes, convenience store, chill out zones, GP, post office, gym and on-site childcare centre.  

  • 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