Staff Software Engineer - Security
About Flow
Flow Engineering is an AI-native requirements platform for modern engineering organizations, enabling hardware teams to collaborate with AI agents to design, validate, and evolve complex systems with speed and rigor.
About the role
Our customers in defense, aerospace and more trust us with sensitive systems requirements. That means security is a first-order part of the product, so we’re looking for a Staff Software Engineer to own it.
This is our first dedicated security hire, so you'll define the security architecture, harden the platform, and build out the compliance posture. Since LLMs and agentic workflows sit at the center of what we do, you'll also lead how we secure them.
What you'll do
Own security architecture across the platform: threat modeling, secure design reviews, and the standards we build against.
Harden the full stack, from application security to cloud infrastructure (identity, network, secrets), tenant isolation, and data protection.
Drive SOC 2 and get us ready for the certifications defense and aerospace customers ask about, including export control and ITAR.
Secure our AI and agentic systems: prompt
