Security Engineering Senior Engineer – Application Security Automation & AI Security

Employment Type Permanent Closing Date 25 July 2026 11:59pm Job Title Security Engineering Senior Engineer – Application Security Automation & AI Security Job Summary As a Security Engineering Senior Engineer – Application Security Automation & AI Security, you will drive the evolution of secure software delivery through automation, AI-enabled security capabilities, and developer-centric security solutions. You will partner with engineering, platform, and cyber security teams to design, build, and operationalise security automation that improves efficiency, reduces risk, and enables secure adoption of AI technologies across the organisation. The role combines Application Security, DevSecOps, Security Automation, AI Security, and Software Engineering disciplines to deliver scalable security outcomes while improving developer experience and accelerating security controls adoption. Job Description Our Perks & Benefits: Work-life integration - we understand life happens when you're busy making other plans, so we offer flexibility around where, and when you work 16 weeks paid parental leave for primary and secondary carers Professional development program An epic (free) Telstra mobile phone plan Laptop/Device allowance renewed every 2 years Purchased Annual Leave scheme Discounted Telstra products and services What You’ll Do Application Security Automation Design and develop security automation solutions that reduce manual effort and improve the scalability of security services. Build APIs, workflow integrations, self-service onboarding capabilities, and orchestration frameworks across security platforms. Automate security controls within CI/CD pipelines, including SAST, SCA, container scanning, secrets management, and policy enforcement. Develop reusable automation patterns, infrastructure-as-code modules, and policy-as-code frameworks. Create integrations between security platforms, developer tooling, cloud services, and governance systems. Drive shift-left security adoption by embedding security controls into software development workflows. AI Security Engineering Research, evaluate, and implement AI security controls, tooling, and best practices. Assess risks associated with AI systems including LLMs, GenAI applications, AI agents, and machine learning platforms. Develop security guardrails for AI solutions, focusing on areas such as: Prompt injection protection Data leakage prevention Model misuse detection Secure AI development practices AI governance and compliance Support AI security capability assessments, proofs of concept, and technology evaluations. Collaborate with stakeholders to define and implement AI security strategy and roadmap initiatives. Engineering & Development Develop software solutions using modern programming languages and automation frameworks. Build dashboards, analytics, and reporting capabilities to provide actionable security insights. Implement AI-enabled security capabilities that improve threat detection, remediation, and operational efficiency. Contribute to security platform architecture, design reviews, and engineering standards. Perform technical investigations and root cause analysis for complex security challenges. Stakeholder Management & Leadership Partner with product teams, platform teams, architects, and security specialists. Influence engineering practices through consultation, enablement, and developer advocacy. Mentor team members and contribute to capability uplift across Security Engineering. Drive continuous improvement initiatives and promote innovation through experimentation and learning. Represent Security Engineering in cross-functional programmes and transformation initiatives. About You Required Technical Skills Strong software engineering and automation experience. Experience developing APIs, integrations, and workflow automation. Proficiency in one or more languages such as Python, Go, Java, or JavaScript. Experience with cloud platforms (AWS, Azure, GCP). Knowledge of CI/CD pipelines and DevSecOps practices. Familiarity with Application Security concepts including: Secure SDLC SAST SCA DAST Threat Modelling Vulnerability Management Experience working with Infrastructure as Code and Policy as Code technologies. AI Security Knowledge Understanding of Generative AI, LLMs, AI agents, and AI application architectures. Awareness of emerging AI threats and security controls. Knowledge of OWASP Top 10 for LLM Applications and AI security frameworks. Experience evaluating AI security products or AI-enabled security solutions is highly desirable. Desirable Experience AI-driven security automation. Security analytics and dashboard development. Container and Kubernetes security. Secrets management platforms. Security platform engineering. AI governance and compliance frameworks. Experience implementing enterprise-scale security automation. Diversity is more than a policy – it’s how we thrive We know diverse teams deliver better outcomes, and we’re committed to creating an environment where everyone feels safe, respected, and supported — regardless of gender, background, or ability. We strongly encourage women and gender-diverse people to apply and are happy to discuss flexible working arrangements or adjustments to the recruitment process. 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 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 DisabilityandAccessibility@team.telstra.com or via the additional contact options found at www.telstra.com.au/careers/diversity-equity-and-inclusion/disability-employment.