Senior AI Security Engineer

Job Description

What’s the Role:

As a Senior AI Security Engineer, you will play a hands‑on role in building and embedding the security controls, guardrails and tooling required to support the safe use of AI across Westpac. You will develop production‑grade code and reusable patterns to protect AI‑powered applications and agent‑based workflows, while working across application security and AI engineering to ensure solutions are secure by design. The role focuses on enabling the adoption of technologies such as Large Language Models (LLMs) and autonomous agents within a complex and highly regulated environment.

Key Responsibilities:

• Design and implement security guardrails for AI and agent‑based applications, including controls for input/output filtering, prompt injection and agent permissions 
• Develop production‑quality Python code for security controls, middleware and testing across LLM applications, RAG pip...