Principal Agent Security Engineer

Fortinet

Confirmed live yesterday High trust

Quick summary

Work type: On-site
Location: Sunnyvale, CA
Employment: Full-time
Posted: 12 days ago
Freshness: Confirmed live yesterday
Nearby: 99+ roles within 25 mi

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Salary context

How this pay compares to similar roles

Similar $186k

$134k $245k

below market most similar roles pay here above market

This listing doesn't post a salary. Most similar roles pay $156,200–$216,775.

Based on 240 similar postings.

Employer

About Fortinet

Fortinet is a US-based cybersecurity company best known for its FortiGate next-generation firewalls. It sells a broad security platform spanning network security, SD-WAN, endpoint protection, cloud security, and SIEM/SOC operations.

Fortinet currently has 102 open roles on FindRole.

Listed pay typically runs $140,000–$183,000 across 77 roles with salary data.

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At a glance

TL;DR · Principal Agent Security Engineer

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The Principal Agent Security Engineer joins the team to build AI security solutions for enterprise customers. This role involves designing and implementing security controls for agentic AI systems while providing technical leadership across product development to define architecture and drive technical decisions. Daily responsibilities include developing pre-sales and post-sales tools, owning production services, and researching emerging security trends to harden security-critical systems. Candidates must possess strong software engineering skills in Python, Go, Rust, or C/C++ and have experience building production backend services. The role requires expertise in system design to balance security, scalability, and performance. Notable domain context includes addressing LLM and agent security issues like prompt injection, tool poisoning, and jailbreaks, as well as designing agentic AI architectures involving MCP, A2A, and tool-calling frameworks.

Skills

Python Go Rust C C++ LLM Agentic AI MCP A2A System Design Application Security Network Security API Security Cybersecurity Backend Services Architecture Production Services

What you'll do

Build AI security solutions specifically for enterprise customers.
Design and implement security controls for agentic AI systems.
Define architecture and drive technical decisions for secure, scalable product solutions.
Develop pre-sales and post-sales tools for customer evaluations, deployments, and troubleshooting.
Own and operate production services, including performance optimization and reliability improvements.
Research emerging technologies and security trends to develop innovative solutions.
Drive the technical strategy and product roadmap for new feature designs.

What we're looking for

Bachelor’s degree in Computer Science or equivalent practical experience.
Strong software engineering skills in Python, Go, Rust, or C/C++.
8+ years of experience building and operating production backend services.
Experience with architecture ownership of security-critical and highly available systems.
Strong system design and architecture skills to balance security, scalability, reliability, and performance.
Strong problem-solving, debugging, and technical leadership skills.
Experience with LLM and agent security, including prompt injection, tool poisoning, and jailbreaks (preferred).
Deep understanding of MCP and A2A with hands-on experience designing agentic AI systems (preferred).

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