Senior Security Architect – Cyber Security

Employment Type

Permanent

Closing Date

29 June 2026 11:59pm

Job Title

Senior Security Architect – Cyber Security

Job Summary

Job Description

At Telstra, you're engineering the future of connectivity for millions across Australia and beyond. You'll tackle complex challenges that make a tangible impact on our customers, at scale.  

Working with cutting-edge tech and AI, you'll gain exposure to diverse tech stacks and leverage extensive data insights to build innovative solutions. Future-proofing your skills through collaboration on cross-functional projects with both internal teams and world-class brand partners. 

As a Security Architect 

You will be passionate about shaping secure, forward-thinking solutions that protect millions of users and systems. In this role, you’ll be a trusted expert, helping define and embed security architecture and standards across major strategic initiatives. 

Crucial: We are seeking hands-on Security Architects with proven experience in cyber architecture assessment. This capability is highly valued because it ensures you can directly evaluate and design secure solutions rather than only oversee the process. 

While leadership experience is respected, this role is best suited for professionals who have personally delivered architecture assessments and solution designs, not just led teams executing the work. 

Risk assessment experience is advantageous, but your primary expertise should be in security solution assessment, as this is the core skill we’re looking for. 

You will work closely with stakeholders across the business to provide security thought leadership, steer architectural decisions, and make sure our solutions are resilient, future-ready, and aligned with Telstra’s Cyber Security Strategy. 

This role suits someone who thrives in complex environments, communicates clearly, and loves bringing people together to solve tough problems. 

  

What you’ll be doing 

• Define and govern security architectures across major tech initiatives. 

• Ensure alignment with Telstra’s security policies, principles, and risk frameworks. 

• Lead security quality assurance activities and support operational readiness. 

• Collaborate with architects, engineers, vendors, and business teams to embed appropriate security controls. 

• Evaluate new security technologies and help shape our capability roadmaps. 

• Create reusable frameworks and patterns to simplify future projects. 

• Translate technical risk into business context — enabling informed, confident decisions. 

• Support the creation and governance of enterprise security strategies and standards. 

• Build strong relationships across the tech industry to stay ahead of emerging threats and opportunities. 

What you bring 

• 5+ years in complex security architecture and solutioning. 

• Expertise in security requirements, control definition, and risk assessment. 

• Proven experience delivering secure architectures at enterprise scale. 

• Clear communicator — able to translate technical ideas into business value. 

• Comfortable working through ambiguity and shifting priorities. 

Bonus if you bring 

• Familiarity with Service-Oriented and RESTful architecture design. 

• Experience with secure cloud-based solutions. 

• Exposure to AI/ML security concepts, including generative and agentic AI. 

Certifications that would shine 

• Security/Risk: CISSP, CISM, CRISC, SABSA 

• Cloud: CCSP, AWS Solutions Architect, Azure 

• Architecture/Process: TOGAF, ITIL, COBIT, Agile 

  

Why Telstra? 

We’re committed to creating a workplace that honours diversity and inclusion. That means real flexibility, inclusive policies, and leadership that walks the talk. 

Here’s what we offer: 

• A genuine commitment to flexible working and family support 

• 30% discount on Telstra products & services 

• Performance-based pay 

• Thousands of learning programs to help you grow 

• Purchased leave schem