Security Engineering Senior Engineer at Telstra in Australia

Security Engineering Senior Engineer
Location: Australia (Flexible)
Employment Type
Permanent
Closing Date
1 Aug 2026 11:59pm
Job Title
Security Engineering Senior Engineer
Job Summary
As a Security Engineering – Senior Engineer, you are an expert in the Information, Engineering and Cyber Security domains, applying your extensive knowledge in security technologies, cloud and corporate networks to shape the security controls required within solution designs (both people, process and technical) and identify, communicate and help treat corresponding security risks.

Through your strong knowledge of existing and emerging technology, you are able deliver a superior security and network experience for our consumers. You do this by drawing on your deep levels of cyber security and engineering knowledge and experience to provide specialist analysis, design, development and deployment in Network and IT specific technology domains.

You play a pivotal role in shaping our technology strategy and protecting Telstra’s assets, acting as a trusted adviser to our people, teams, cyber, engineering and DevOps leaders to build our cyber capability.
Job Description
About the Role
We are seeking an AI Senior Security Engineer to support the practical adoption of AI-enabled security capabilities, improve automation, and help uplift detection and response across the organisation.
Working alongside senior engineers and the AI Security Principal, you will contribute to building, integrating, and improving AI-driven security solutions across detection, response, application security, and cyber assurance initiatives.
This role is designed as a developing engineering role, with an emphasis on hands-on learning, guided delivery, and progressive capability uplift. The successful candidate will be expected to contribute to practical engineering outcomes while building deeper expertise in AI security, automation, and enterprise cyber operations.
Key Responsibilities
Capability Delivery Support
Contribute to the development and implementation of AI-enabled security capabilities.
Assist in translating defined requirements into automation workflows and engineering outputs.
Support delivery activities across security engineering and cyber operations teams.
AI & Automation Engineering
Develop and maintain AI-enabled security workflows under guidance from senior engineers.
Build and enhance automation scripts, reusable components, and workflow integrations.
Support integration of AI and automation into existing security tools, platforms, and operational processes.
Troubleshoot AI-driven workflows, automation logic, data flows, and integrations to improve reliability and accuracy.
Apply structured problem-solving to investigate unexpected outputs, workflow failures, or data inconsistencies.
Technology Evaluation & Integration Support
Support onboarding and integration of AI security tools and platforms.
Assist with testing, validation, and proof-of-concept activities.
Work with internal teams and vendors to help resolve implementation issues.
Operational & Data Support
Analyse security data, telemetry, alerts, and workflow outputs to identify trends, gaps, and improvement opportunities.
Contribute to dashboards, metrics, and reporting that demonstrate capability performance and operational value.
Support optimisation of detection, response, and automation workflows through evidence-based insights.
Assess AI and automation outputs to determine accuracy, relevance, reliability, and operational usefulness, escalating concerns or potential issues where appropriate.
Escalate issues with clear analysis, supporting evidence, and practical recommendations.
Learning, Enablement & Collaboration
Work closely with engineers, SOC analysts, and architects to support capability uplift.
Actively learn and apply AI, automation, and cyber security practices.
Contribute to team knowledge sharing and documentation.
Collaborate with relevant governance, architecture, and security teams to help ensure AI-enabled security solutions align with agreed standards and controls.
Required Skills & Experience
Foundational experience in software engineering, scripting, automation, or technical problem-solving, such as Python, PowerShell, APIs, or workflow automation.
Basic understanding of software development practices, such as version control, testing, debugging, documentation, and working with reusable code or scripts.
Basic understanding of cyber security concepts, security operations, application security, cloud security, or enterprise risk.
Exposure to data analysis, telemetry, logs, alerts, or working with structured and unstructured data.
Ability to troubleshoot issues methodically across systems, data flows, workflows, and integrations.
Critical thinking skills, including the ability to question assumptions, validate outputs, and identify when results may be incorrect, incomplete, or misleading.
Ability to break down complex problems into manageable steps and seek guidance when required.
Strong willingness to learn and develop in AI, automation, and security domains.
Preferred Qualifications
Exposure to security tools such as SIEM or endpoint platforms.
Familiarity with cloud environments (e.g., AWS, Azure, GCP).
Awareness of AI/ML concepts or tools, such as LLMs, APIs, or automation assistants.
Relevant certifications or studies in cyber security, IT, or data/AI.
Who You Are
Curious, motivated, and eager to learn new technologies, particularly AI, automation, and cyber security.
Collaborative and comfortable working with guidance from senior engineers, analysts, and architects.
Detail-oriented, structured, and willing to follow secure engineering and operational processes.
Inquisitive and willing to validate outcomes rather than accepting AI or automation outputs at face value.
Comfortable working through ambiguous technical problems and escalating clearly when support is needed.
Interested in building practical, real-world engineering and automation skills in an enterprise environment.
Why This Role is Different
Opportunity to build practical AI and security engineering skills in a real enterprise environment.
Exposure to cutting-edge AI security capabilities and tooling.
Structured development path with mentorship from senior engineers and capability leads.
Interested? Apply now!
If you're excited about the opportunity to be part of a team, committed to delivering amazing experiences for our customers – your next step is to apply!
Telstra is an equal opportunity employer and we value diversity. We’re also committed to flexibility – giving you more choice in how you manage your work and life commitments. To learn more, visit tel.st/allrolesflex
If you are looking to take the next step in your career, we want to hear from you!