Senior Security Advisor

Employment Type Permanent Closing Date 10 Sept 2026 11:59pm Job Title Senior Security Advisor Job Summary As a Senior Cyber Security Advisor, you will play a critical role in Telstra’s Global Networks & Technology – Security & Operations team, driving enterprise-wide security outcomes through strategic engagement and technical leadership. You are accountable for establishing and maintaining strong, collaborative relationships with key stakeholders across Cyber Assurance engagements—including Group Owners, Technical Product Owners, and internal business units. Your focus will be on enabling secure delivery of business missions by providing expert guidance, simplifying complex security challenges, and ensuring alignment with Telstra’s risk and compliance frameworks. Working within Security & Operations, the role leads end-to-end security engagements, coordinates assurance activities, and drives continuous improvement across cybersecurity processes. The Senior Cyber Security Advisor provides expert advice on security controls, risk treatment, and governance, while fostering a strong security culture and enabling the safe delivery of strategic business initiatives. The position requires significant experience in cybersecurity, risk management, and operational improvement, supported by strong communication, leadership, and influencing skills. Job Description Who We Are We're an iconic Aussie brand with a global footprint. Our purpose is to build a connected future so everyone can thrive. We're all about providing the best experience and delivering the best tech on the best network. This includes making Telstra the place you want to work. For you, that means a having career that grows with you and working with a team powered by human connection that prioritises wellbeing and choice. Focus of the Role As a Senior Cyber Security Advisor, you will play a critical role in Telstra’s Global Networks & Technology – Security & Operations team, driving enterprise-wide security outcomes through strategic engagement and technical leadership. You are accountable for establishing and maintaining strong, collaborative relationships with key stakeholders across Cyber Assurance engagements—including Group Owners, Technical Product Owners, and internal business units. Your focus will be on enabling secure delivery of business missions by providing expert guidance, simplifying complex security challenges, and ensuring alignment with Telstra’s risk and compliance frameworks. What We Offer Performance-related pay Access to thousands of learning programs so you can level-up Global presence across 22 countries; opportunities to work where we do business. Purchased annual leave scheme Additional Telstra day off Additional 30% off Telstra products and services Toolkit provided (laptop + mobile phone + plan paid for) What You’ll Do Act as a trusted security advisor to business and technology stakeholders. Lead and support security assessments, assurance activities, and risk reviews. Provide practical, risk-based security recommendations aligned with security and compliance frameworks. Drive security-by-design principles and promote cybersecurity awareness. Improve security processes, governance, standards, and operational effectiveness. Support the adoption of security tools, capabilities, and frameworks. Develop security guidance, procedures, templates, and playbooks. Use operational metrics and reporting to drive continuous improvement and enhance stakeholder experience. About You 5+ years of experience in cybersecurity advisory, risk management, security operations, governance, or assurance. Experience conducting security assessments and managing security risks. Strong stakeholder engagement and relationship management skills. Excellent communication and influencing capabilities across technical and non-technical audiences. Strong analytical, problem-solving, and process improvement skills. Experience creating standards, procedures, and operational documentation. Solid understanding of cybersecurity frameworks, controls, technologies, and emerging threats. Preferred Certifications CompTIA Security+ SSCP (ISC²) ISACA Cybersecurity Fundamentals GIAC Security Essentials (GSEC) Microsoft SC-900 Cisco Certified CyberOps Associate Choose an item. We're amongst the top 2% of companies globally in the CDP Global Climate Change Index 2023, being awarded an 'A' rating. If you want to work for a company that cares about sustainability, we want to hear from you. As part of your application with Telstra, you may receive communications from us on +61 440 135 548 (for job applications in Australia) and +1 (623) 400-7726 (for job applications in the Philippines and India). When you join our team, you become part of a welcoming and inclusive community where everyone is respected, valued and celebrated. We actively seek individuals from various backgrounds, ethnicities, genders and disabilities because we know that diversity not only strengthens our team but also enriches our work. We have zero tolerance for harassment of any kind, and we prioritise creating a workplace culture where everyone is safe and can thrive. As part of the hiring process, all identified candidates will undergo a background check, and the results will play a role in the final decision regarding your application. We work flexibly at Telstra. Talk to us about what flexibility means to you. When you apply, you can share your pronouns and / or any reasonable adjustments needed to take part equitably during the recruitment process. We work flexibly at Telstra. Talk to us about what flexibility means to you. When you apply, you can share your pronouns and / or any reasonable adjustments needed to take part equitably during the recruitment process. Adjustment requests and accessibility support can be arranged using the contact details below. We are aware of current limitations with our website accessibility and are working towards improving this. Should you experience any issues accessing information or the application form, and require this in an alternate format, please contact our Talent Acquisition team on or via the additional contact options found at Skills Complex data modelling, Cyber security incident management, Cyber security incident response, Predictive Analytics, Research - emerging technologies, Security measures and controls, Security policies, standards or procedures development, Security Risk Assessment, Security roadmap development, Security Testing, Security Testing Design, Security testing tools, Specialised computing environment design, Threat detection - modelling and machine learning, Threat Hunting, Vulnerability Assessments Qualifications & Certifications (if applicable) Future Ready - Adapts and Grows - Future Ready, Future Ready - Collaborates and Influences - Future Ready, Future Ready - Customer Focused - Future Ready, Future Ready - Informed Decision Maker - Future Ready, Future Ready - Team Performer - Future Ready Please Note: Before applying for internal vacancies, advise your 1-up manager of your intention to apply, regardless of the length of time you have been in your existing role. An employee can move internally if they meet 12 months minimum service for a Band 2 – 4 role, or 18 months minimum service for a Band 1 role. This minimum service requirement may be reduced with 1-up manager approval. Internal Reference Checks are mandatory, and an employee’s current 1-up manager will be contacted as a referee during the recruitment process. Release dates will be negotiated directly between the hiring manager and the 1-up manager (in extenuating circumstances, the Principal or Executive may make final decision) Redeployees can apply for roles at any time and will be given priority status for suitable roles. Before applying for a role internally, please see AskUs – Am I eligible to apply for internal roles We fully embrace flexibility and choice at Telstra and it’s as unique as you. We believe every role can flex in some way and encourage you to work where, when, and how you are most engaged, safe, and productive. Talk to us about how a role could be flexible for you!