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Staff AI Application Security Engineer

🗓️ Posted 2026-08-07 Sydney, Australia Fulltime Hybrid ICT

Company shared salary

NA

Market rate

A$10,000–A$15,000/mo (A$120,000–A$180,000/yr)

Based on similar roles (title + domain + location).

About the Company

At Relevance AI, we're building the home of the AI workforce. Our mission is simple: empower every team to delegate meaningful work to AI agents that think, act, and collaborate like experts. With Relevance AI, anyone can create and manage intelligent agents that handle workflows, decisions, and collaboration - all within one unified platform. Our technology already powers industry leaders such as Canva, Databricks, Confluent, Autodesk, Lightspeed and Rakuten, helping them scale excellence across operations, marketing, and sales. We're backed by Bessemer Venture Partners and raised our Series B in April 2025 to accelerate growth and push the boundaries of agentic automation. Headquartered in San Francisco and Sydney, we operate on a hybrid model and thrive on curiosity, collaboration, and execution - we move fast, think big, and win together.

Responsibilities

  • ● Migrate access control to our new model, and close any gaps.
  • ● Secure the product surface: authn/authz, API security, input and output handling, supply-chain risk.
  • ● Build the guardrails that let agents act safely: permissions, attribution, sandboxing, tool-use limits, prompt-injection defence.
  • ● Establish least-privilege access across production, and make the secure path the fast path.
  • ● Take us towards an autonomous security team: agents that continuously scan the platform and the code we ship, and help remediate what they find.

Requirements

  • ● A view on agentic security, having thought about what security means when agents do the work, not humans.
  • ● AppSec depth on a production platform: authn/authz, API security, secure design and review, supply-chain risk.
  • ● Hands-on ownership, preferring to fix issues rather than report them.
  • ● Systems thinking, able to discuss how an end-to-end autonomous system should be designed and where it breaks.
  • ● Knowledge of the basics for our stack: TypeScript, AWS, MCP, and AI engineering fundamentals - tool use, context, evals.
  • ● Comfortable building with agents, or willing to learn.

Benefits

  • ● We'll sponsor relocation to Sydney for the right candidate.