Founding Security Engineer, AI Agents — Onsite SF

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

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