Principal Software Development Engineer (Agent Security)

Responsibilities

• Build AI security solutions for enterprise customers.
• Design and implement security controls for agentic AI systems.
• Provide technical leadership across product development, working closely with Product, Engineering, and QA teams to define architecture, drive technical decisions, and deliver secure and scalable solutions.
• Develop pre-sales and post-sales tools and environments to support customer evaluations, deployments, troubleshooting, and integration.
• Own and operate production services, including troubleshooting, performance optimization, reliability improvements, and ongoing hardening of security-critical systems.
• Research emerging technologies and security trends to identify new opportunities and develop innovative solutions.
• Drive technical strategy and product roadmap, including new feature design, architecture evolution.

Requirements

• Strong software engineering skills in Python or Go, or in a systems language such as Rust or C/C++.
• Bachelor’s degree or above in Computer Science, or equivalent practical experience.
• 8+ years of experience building and operating production backend services, including architecture ownership of security-critical and highly available systems.
• Strong system design and architecture skills, with the ability to make sound technical trade-offs across security, scalability, reliability, and performance.
• Self-driven and proactive, with strong problem-solving, debugging, and technical leadership skills and a focus on delivering high-quality solutions.
• Strong Plus Experience with LLM and agent security, including areas such as prompt injection, tool poisoning, jailbreaks, and agent security controls.
• Agentic AI architecture — Deep understanding of MCP and A2A, with hands-on experience designing and building agentic AI systems, including tool-calling and agent frameworks.
• Cybersecurity background — Professional experience in application security, network security, identity, API security, or other cybersecurity domains.
• Must be authorized to work in the U.S. without sponsorship.

Pay

The US base salary range for this full-time position is $212,000‑$259,000. Exact salary offers will be determined by factors such as the candidate's subject knowledge, skill level, qualifications, experience, and geographic location.

Benefits

• Medical, dental, vision, life and disability insurance
• 401(k)
• 11 paid holidays
• Vacation time
• Sick time
• Comprehensive leave program
• Eligibility to participate in the Fortinet equity program
• Bonus eligibility reviewed at time of hire and annually at the Company’s discretion