Founding Security Software Engineer

NPAworldwide; San Francisco (CA); On-site; USD 220,000 - 320,000; Full time

Job summary

NPAworldwide is seeking a Senior Security Engineer for AI Agents in the San Francisco Bay Area. The role is on-site, full-time, reporting directly to engineering leadership and shaping the security architecture for our agent platform.

You will contribute code and drive security decisions that protect customer data across multi-tenant services. You will own threat modeling, implement robust controls, and collaborate with product engineers while safeguarding sensitive information and ensuring

Qualifications

• Production systems you personally designed, built, and shipped.
• Strong 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.

Responsibilities

• 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.

Skills

Software engineering

CS fundamentals

Security engineering

Backend debugging

AI risk awareness

Prioritization

Tools

Python

TypeScript

Rust

Job description

Job Description

Senior Security Engineer, AI Agents

Location: San Francisco Bay Area (on-site, full-time)

Employment type: Direct hire

About The Opportunity

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

Qualifications

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

Salary Type

Annual Salary

Salary Min

$ 220000

Salary Max

$ 320000

Currency Type

USD