Staff AI Application Security Engineer

Position:
Staff AI Application Security Engineer

Company:
Relevance AI

Location:
Australia, Sydney

Employment type:
Full time

Work Arrangement:
Hybrid (3 days in office required)

Short Summary:
At Relevance AI, we're building the home of the AI workforce, empowering teams to delegate meaningful work to AI agents. As a Staff Application Security Engineer, you'll specialize in application and product security for a platform of autonomous agents, ensuring security is a key reason customers choose our product.

Responsibilities:
- Migrate access control to the new model and close any gaps.
- Secure the product surface: authn/authz, API security, input and output handling, supply-chain risk.
- Build guardrails for agents: permissions, attribution, sandboxing, tool-use limits, prompt-injection defense.
- Establish least-privilege access across production and make the secure path the fast path.
- Work towards an autonomous security team that continuously scans the platform and code.

Requirement:
- A view on agentic security and its implications.
- AppSec depth on a production platform: authn/authz, API security, secure design and review, supply-chain risk.
- Hands-on ownership and systems thinking.
- Familiarity with TypeScript, AWS, MCP, and AI engineering fundamentals.
- Comfortable building with agents.

Benefits:
- 📈 ESOP – Employee Stock Ownership Plan.
- 🤖 AI Productivity Benefit – Up to $1200 USD/year for AI tools.
- 👶 Parental Leave – 12 weeks of paid leave for all eligible new parents.
- 🎉 Milestone Merch – Customized Relevance AI swag for work anniversaries.
- 🍿 Food, Drinks & Community – Catered lunches and stocked fridge.
- 🪩 Quarterly Team Events – Team bonding experiences every quarter.
- 🏓 Social Clubs – Join or start clubs with teammates.
- 🧠 Sonder EAP – 24/7 mental health and wellbeing support.