Staff AI Application Security Engineer

Relevance AI
Sydney
Workplace: HybridFull timeFunction: CybersecuritySkills: ["Hands-on ownership","Systems thinking","Security thinking","Judgment","Collaboration"]

Own application security for an AI-native platform that lets enterprise customers deploy autonomous agents. Migrate and strengthen access control, secure product and API surfaces, and design guardrails against prompt injection, sandbox escapes, and supply-chain risk. Establish least-privilege access and enable secure-by-default workflows, then help evolve toward an autonomous security capability that continuously scans and supports remediation. Specialist IC role reporting to Head of Engineering.

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FursaFursa
Relevance AI
Relevance AI
4 days ago

Staff AI Application Security Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 5 hours agoStatus: Live

Job Summary

Own application security for an AI-native platform that lets enterprise customers deploy autonomous agents. Migrate and strengthen access control, secure product and API surfaces, and design guardrails against prompt injection, sandbox escapes, and supply-chain risk. Establish least-privilege access and enable secure-by-default workflows, then help evolve toward an autonomous security capability that continuously scans and supports remediation. Specialist IC role reporting to Head of Engineering.
Location: Sydney
Workplace: Hybrid
Employment Type: Full time
Job Function: Cybersecurity
Seniority: Sr. Manager level

Key Responsibilities

  • •Migrate access control to the new model and close any security gaps.
  • •Secure the product surface including authn/authz, API security, and input/output handling; address supply-chain risk.
  • •Build guardrails for safe agent execution: permissions, attribution, sandboxing, tool-use limits, and prompt-injection defense.
  • •Establish least-privilege access across production so the secure path is the fastest path.
  • •Help move toward an autonomous security team that continuously scans the platform and remediates findings over time.

Pay and Benefits

Equity and Bonus:Equity
Perks:EquityParental LeaveHealth Insurance

Key Requirements

  • •Depth in application security for a production platform, including authn/authz, API security, secure design/review, and supply-chain risk.
  • •A view on agentic security—what security means when agents act on behalf of users, not humans.
  • •Hands-on ownership: prefer fixing issues directly over delegating vulnerabilities.
  • •Systems thinking to design end-to-end autonomous systems and identify where they break down.
  • •Comfort building with agents and the skills to pick up the stack (TypeScript, AWS, MCP, and AI engineering fundamentals).
Experience:AIAgentic automationEnterprise softwareApplication securitySecurity engineering
Skills:Hands-on ownershipSystems thinkingSecurity thinkingJudgmentCollaboration
Tech Stack:TypeScriptAWSReactVue.jsExpress.jsNode.jsPythonPostgreSQLMongoDBVercelTerraformKubernetesMCPDaprClaude CodeCursorCodexAI engineering

Company Brief

Relevance AI
Provides a no-code platform to build and manage AI agents and agent teams for automating reasoning tasks, enabling businesses to create workflow automation, semantic search, and vector-based AI applications.
Industry: AI & Machine Learning
Company Size: Small (11 to 50 employees)
Growth: Growth Stage Startup
Funding: Series B
Headquarters: Surry Hills, Australia
Founded: 2020
Glassdoor
Glassdoor: 4.4
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