Senior Security Engineer

Senior Security Engineer - Identity & Directories, page is loadedSenior Security Engineer - Identity & Directories,Apply locations Australia (Flexible) time type Full time posted on Posted Yesterday time left to apply End Date: September 10, 2025 (12 days left to apply) job requisition id JR-10153734Employment TypePermanentClosing Date9 Sept 2025 11:59pmJob TitleSenior Security Engineer - Identity & Directories,Job SummaryJob DescriptionJoin Telstra's Security & Operations team as a Senior Security Engineer - Identity & Directories, and help safeguard the identity infrastructure that underpins the digital backbone of Australia's largest telco.
Sitting within our Information and Cybersecurity function, this role focuses on hardening and securing Telstra's enterprise Microsoft Active Directory (AD) environment, a core component of our identity and access management (IAM) ecosystem.You'll work end-to-end across the design, deployment, and ongoing support of Active Directory integrations and security uplift activities.
From lifecycle management to recovery tools, you'll be hands-on in delivering resilient identity infrastructure and responding to internal and external audit requirements.This is a high-impact, technical individual contributor role, ideal for someone who's experienced with enterprise identity environments and passionate about securing core digital assets.What You'll DoLead and support the secure design and implementation of AD integrations and IAM servicesCollaborate across cyber, IT, and DevOps teams to embed secure identity practicesDrive hardening, remediation, and response activities for AD and directory-related threatsContribute to security architecture, frameworks, and standards across identity systemsProvide expert input into audits, compliance reviews, and advanced threat responseImplement and maintain observability and recovery solutions for identity infrastructure.You're an experienced infrastructure security engineer or identity specialist who thrives in enterprise environments.
You have strong Active Directory knowledge and can troubleshoot, script, and collaborate across teams to protect critical services.What you bringExpert-level knowledge of Microsoft Active Directory Domain Services (design, deployment, and security hardening)Hands-on scripting and troubleshooting skills, PowerShell proficiency requiredSolid understanding of authentication protocols (LDAP/S, Kerberos, NTLM) and networking concepts (DNS, load balancing)Experience working with or supporting IAM tools and processesFamiliarity with audit remediation, threat detection tools, or recovery platforms.Bonus points for:Experience with Microsoft Identity Manager (MIM) – lifecycle, role-based access, workflowsExposure to Semperis ADFR/DSP, CrowdStrike Identity, or similar identity security platformsKnowledge of identity observability and recovery strategies in enterprise settings.Why Telstra?
Flexible work – we support hybrid and remote working16 weeks paid parental leave – for both primary and secondary carersFree Telstra mobile plan – stay connectedLaptop/device allowance – refreshed every 2 yearsProfessional development – grow your skills with usPurchased annual leave – buy extra time when you need itExclusive discounts – on Telstra products and services.If this sounds like the right opportunity for you, we'd love to hear from you.
Apply now and join a team securing the future of Telstra's identity infrastructure.Diversity, Inclusion & AccessibilityWe're committed to building a diverse and inclusive workforce in all its forms.
We strongly encourage applications from people of all backgrounds, including those from diverse gender, cultural and linguistic communities, and individuals living with a disability.To learn more about how we support our people, including accessibility adjustments during the recruitment process, visit: tel.st/thriveAbout UsWe'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.Recruitment SupportWe are committed to making it easy for everyone to apply.
If you require accessibility support or adjustments during the recruitment process, please send an email to Disability and Accessibility inbox.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.
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