Security Architecture - Senior Architect

Telstra Corporation; Australia; Hybrid; AUD 170,000 - 210,000; Full time

Job summary

Telstra is seeking a Senior Security Architect to lead security architecture across complex enterprise and network environments. You will translate security requirements into practical architecture outcomes, collaborate with stakeholders and partners, and contribute to security standards, patterns and guidelines to support secure, scalable solutions.

You will drive governance, risk treatment, and reusable security patterns while supporting business-critical delivery and strategic security

Qualifications

• 5+ years delivering complex security solutions with elaboration of requirements and risk assessments.
• Experience solving enterprise-scale security problems amid ambiguity.
• Experience developing or contributing to architecture or technology strategy.
• Tertiary qualifications in IT, Engineering or a related discipline.

Responsibilities

• Ensure solution architectures comply with Telstra’s security policies, standards and patterns.
• Collaborate with stakeholders, architects, engineers and vendors to define and operationalise security controls.
• Perform security QA activities and support operational readiness for initiatives and designs.
• Document security architectures, requirements, models, frameworks, patterns and standards.
• Identify and communicate security risks to business stakeholders in a timely and practical way.
• Drive assessments of emerging security capabilities to keep standards current.

Skills

Security architecture

Stakeholder management

Risk management

Decision making

Continuous learning

Customer focus

Teamwork

Accountability

Education

Tertiary qualifications in IT or Engineering

CRISC

CISSP

CISM

SABSA

TOGAF

Job description

Employment Type Permanent

Closing Date 29 Aug 2026 11:59pm

Job Title Security Architecture - Senior Architect

Job Summary

The Opportunity This is an opportunity to play a lead security architecture role across complex enterprise and network environments, helping ensure solutions are secure, scalable and aligned to Telstra’s cyber security strategy. You will partner with business stakeholders, enterprise and domain architects, engineers, product vendors, delivery partners and operational teams to translate security requirements into practical architecture outcomes. The role also contributes to the ongoing development of security standards, patterns, frameworks and guidelines, ensuring they remain actionable in a dynamic technology and systems environment. Success will be reflected through strong architectural governance, effective risk treatment, reusable security patterns and timely support for business-critical delivery.

Key Responsibilities

• Ensure solution architectures comply with Telstra’s security policies, standards, patterns and principles, with deviations appropriately managed through Telstra’s risk management frameworks and processes.
• Actively collaborate with business stakeholders, enterprise and domain architects, engineers, constructor teams, product vendors and partners to define and operationalise security controls that protect Telstra and customer information, systems and network assets.
• Perform security quality assurance activities and support operational readiness processes for initiatives and solution designs.
• Define security solution architectures and document the corresponding business and security impacts, including requirements, solution impact assessments, high-level designs, solution briefs, solution architecture definitions and security risk assessments.
• Identify and communicate security risks to business stakeholders in a timely and practical way, incorporating insights from privacy, legal, engineering and operational teams.
• Drive assessments of emerging security capabilities to ensure architectural standards and capability roadmaps remain current and aligned to business objectives.
• Define and document reusable assets such as standardised security requirements and solution patterns that reduce rework and improve consistency.
• Contribute to the creation and governance of security strategy, standards and frameworks to support a coherent and optimised security architecture.
• Foster strategic relationships across industry and technology vendors to anticipate emerging opportunities and threats and support innovation across business units, partners and customers.
• Comply with Telstra Business Principles, Telstra Values, the Telstra Code of Conduct and Telstra policies and procedures.

About You

You are an experienced security architecture professional who can solve complex enterprise-scale security problems, work through ambiguity and translate customer and business security needs into deliverable technical and operational requirements. You bring strong judgement, stakeholder management and the ability to balance risk, business outcomes and delivery priorities. Core expertise: You bring strong problem-solving capability, core security architecture competency, business acumen, decision quality, adaptability, continuous learning, customer focus, teamwork and accountability. You can assess, develop and operationalise security solutions using control and risk management frameworks, and you are comfortable documenting security architectures, requirements, models, frameworks, patterns and standards for complex IT and network systems. Your security domain knowledge spans areas such as access control, cryptography, security architecture, information security governance and risk management, operations security, legal and regulatory compliance, network security, environmental security, and generative and agentic AI security.

Essential experience and qualifications

Extensive experience, ideally 5+ years, providing complex security solutions, including security requirement elaboration, security control definition and security threat/risk assessment. Experience solving enterprise-scale security problems involving high levels of ambiguity. Experience developing or contributing to architecture or technology strategy. Tertiary qualifications in IT, Engineering or a complementary discipline.

Highly desirable: Relevant industry certifications such as CRISC, CISSP, CISM, SABSA, CCNP, CCIP, CCIE, CCSP, AWS Certified Solutions Architect, MCSD, TOGAF, ITIL, COBIT 5, Agile or CGEIT. Experience with Agile and DevOps environments. Knowledge and experience in IT systems planning, design and technical architecture. Experience designing service-oriented, RESTful and secure cloud-based architectures.

Company Culture

We're an iconic Aussie brand with a global footprint. From our earliest days in the Postmaster General’s Office to the Australian icon we are today, the heart of Telstra has never changed. We’ve always been committed to being a great place to work as we make the world a better place too. Working at Telstra, we all have a why. Whether it’s endless career opportunities, an amazing work-life balance or being able to make a difference, we all know why we’re motivated to be our best here. Our people find purpose and pride in being part of Telstra, because we support the things that matter most. We are committed to making it easy for everyone to apply. In a business as big and diverse as ours, there’s a huge breadth of career paths available. Uncover opportunities, broaden your experience, and discover the many areas of our organization there is to explore.