Solutions Architect, CIAM

*We are open to cadidates based in Sydney & Melbourne.

At Optus, millions of Australians trust us with their digital lives every day. How they register, authenticate, and manage their identity across every channel we operate is one of the most consequential engineering decisions we make. We are now looking for a Solution Architect to lead the design and delivery of our next-generation Customer Identity and Access Management platform, and to shape how customers experience security for years to come.

This is a rare opportunity to own the architecture of a next-generation customer identity platform from day one. The platform decision has been made and the program is underway. You will step in as the solution architect, lead the transition from the current state, and then stay close to the platform as the technical authority shaping feature evolution, customer experience improvements, and emerging identity capabilities. If you want to make a lasting architectural mark on a platform used by millions of Australians, this is it.

Your day to day will consist of

• Leading the solution architecture and transition delivery for Optus's next-generation CIAM platform, ensuring the selected platform is implemented to a standard that supports millions of customers across every channel at telecommunications scale.

• Designing the end-to-end customer identity architecture covering registration, authentication, consent management, and identity lifecycle across mobile, broadband, and enterprise services.

• Setting the enterprise standard for customer authentication including biometric, passkeys, WebAuthn and FIDO2, MFA, and social login, balancing security rigour with seamless customer experience.

• Architecting SIM swap fraud prevention, account takeover defences, and credential stuffing protections specific to the telecommunications threat landscape.

• Designing privacy-by-design frameworks that meet Privacy Act and Consumer Data Right obligations without compromising the customer experience.

• Evaluating emerging identity capabilities including decentralised identity, continuous authentication, and AI-driven fraud detection, and translating research into actionable architecture decisions.

• Collaborating across Digital, Marketing, Fraud, and IT to influence outcomes and ensure CIAM architecture integrates seamlessly with the broader Optus customer platform

What makes you perfect for the role?

• Significant experience in information security with a strong focus on customer identity, CIAM, or consumer authentication platforms at enterprise scale

• Demonstrated ability to design and architect CIAM platforms or consumer authentication systems in complex, high-scale environments