# Security Software Engineer

> PSI · San Francisco, United States · Full-time · Posted 2026-11-11

**Salary:** USD 200,000–320,000

**Workplace:** on_site

## Description

Our client is an AI company building autonomous agents for enterprise customers. Their agents handle sensitive customer data and take real actions inside business-critical software, so security sits at the center of how the product earns trust and wins larger accounts.

This is a senior, hands-on individual contributor role with a direct line to engineering leadership. You will shape the security architecture for the agent platform and write much of the code that enforces it.

## What You'll Do

-   Own the threat model and security roadmap for the agent platform
-   Design and build controls that limit what agents can do, including permissions, approvals, and sandboxed execution
-   Develop secure identity, credential, and data handling across services and tenants
-   Harden application packaging, updates, and release processes
-   Write security-focused tests, investigate vulnerabilities, and lead incident response engineering
-   Partner with product engineers and support customers through security reviews

## Requirements

## What You Bring

-   **Strong software engineering background:** production systems you personally designed, built, and shipped
-   **Solid CS fundamentals:** algorithms, concurrency, operating systems, and systems design
-   **Hands-on security engineering:** authorization, secrets management, process isolation, or network security
-   Comfort debugging across backend services and operating system layers
-   Clear thinking on AI-specific risks such as prompt injection and untrusted model output
-   Ability to prioritize and own outcomes in an ambiguous, fast-moving environment

## Nice to Have

-   Python, TypeScript, or Rust
-   Desktop application or endpoint security experience
-   Experience with AI agents, agent tooling, or developer tools
-   Enterprise identity, on-prem, or restricted-network deployments

Why is This a Great Opportunity

-   Tackle new, high-impact problems in AI agent security
-   Set the security architecture and engineering standards for the company
-   Work closely with leadership and see your decisions ship quickly

## Benefits

-   Health Care Plan (Medical, Dental & Vision)
-   Retirement Plan (401k, IRA)
-   Life Insurance (Basic, Voluntary & AD&D)
-   Paid Time Off (Vacation, Sick & Public Holidays)
-   Family Leave (Maternity, Paternity)
-   Short Term & Long Term Disability
-   Training & Development

## Apply

[Apply at PSI](https://apply.workable.com/psi-9/j/131315D63D/apply)

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