Your opportunity:

We are seeking a strategic, visionary, and technical Senior Manager of Cyber Security Architecture to lead the design and governance of our enterprise-wide security architecture. In this role, you will be responsible for defining the security vision, reference models, design patterns, and strategic roadmaps across multi-cloud environments, modern infrastructure, and business applications.

You will act as the principal authority for security design, bridging business requirements with robust security patterns (Zero Trust, Cloud-Native, Defense-in-Depth). The ideal candidate brings extensive technical experience in enterprise architectural governance combined with proven leadership to manage security architects and advise key stakeholders.

You'll make impact by:

- Ownership of security design, patterns & blueprints.
- Lead, mentor, and grow a team of high-performing Cyber Security Architects.
- Establish and maintain the Enterprise Cyber Security Architecture framework, reference architectures, design patterns, and threat model.
- Key representative in Architecture Review Board (ARB) to evaluate and approve major technical designs, technology acquisitions, and system integrations.
- Align security architecture strategy with business transformation, digital innovation, and compliance/risk requirements.
- Evaluate emerging technologies (AI/ML security, quantum-safe cryptography, mesh architectures) and run architecture proof-of-concepts.
- Provide expert advice on security posture and risk trade-offs during major organizational changes, M&A; integrations, and vendor evaluations
- Serve as trusted advisor to executive leadership, product leaders, and IT on architectural risks and strategic security investments.

What you’ll bring:

- Experience:



10+ years of experience in Information Security and IT Architecture, with at least 3+ years in a senior architecture leadership or manager role.
- Architectural Expertise: Proven track record designing enterprise security solutions across multi-cloud, hybrid infrastructure, Zero Trust, IAM, networks, and enterprise applications.
- Frameworks & Methodologies: Deep knowledge of TOGAF, SABSA, NIST CSF/800-53, MITRE ATT&CK;, STRIDE and Zero Trust Architecture patterns.
- Threat Modeling & Risk: Hands-on experience conducting threat modeling, design risk assessments, and vulnerability architecture reviews.
- Leadership & Influence: Exceptional executive communication, negotiation, and stakeholder management skills with the ability to influence cross-functional technical teams.

Preferred Certifications:

- Certified Information Systems Security Professional (CISSP) or CISSP-ISSAP (Architecture)
- Sherwood Applied Business Security Architecture (SABSA) / TOGAF Certified
- Certified Cloud Security Professional (CCSP)
- AWS Certified Solutions Architect – Professional / Azure Solutions Architect Expert

What's in it for you?

- Flexible hybrid way of working (from home and office)
- ‘Stay Connected Mobile’ – Access to a free mobile plan
- ‘Stay Connected NBN’ – Access to a free, high‑speed NBN plan (up to 500 Mbps)
- ‘Your Leave’ - additional leave to be used whenever you like - every year




- Access to TPG Learning Hub platform and internal development opportunities
- Access to Corporate Partner Discounts

Don’t meet every single requirement? That’s OK! At TPG Telecom, we’re all about creating an accessible workplace where everybody feels protected to bring their authentic self to work - regardless of background. If you think this role is a outstanding fit for you but some of the qualifications don’t align with your experience, we still encourage you to apply - you might just be the perfect candidate for a similar role with us! Learn more about life at TPG Telecom here. TPG Telecom also acknowledges the Gadigal People of the Eora Nation as the Traditional Custodians of lands and waterways where this office can be found in Barangaroo.

Our Talent Acquisition Team and Hiring Managers kindly request no unsolicited resumes or approaches from Recruitment Agencies. TPG Telecom is not responsible for any fees related to unsolicited resumes.

TPG Telecom started with a belief that we can make things better for Australians. We believe in the power of meaningful relationships to support vibrant, connected communities where everyone belongs. It’s our why; our reason to exist. Now, we’re proud to be one of Australia’s leading mobile and internet providers. We’re not just redefining telco, we’re changing its course. And you play a role in that. A big one. The opportunities are plenty for those who are ready to accept the challenge.

Our Technology team builds and evolves the networks and platforms that keep millions of Australians connected every day. From mobile and fixed networks to digital platforms and data, you’ll work at the forefront of innovation solving complex challenges and helping shape the future of connectivity.

📌 Senior Manager - Cyber Security Architecture (Barangaroo)
🏢 Tpg Telecom
📍 Barangaroo