Software Engineer, Infrastructure – San Francisco

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. After a recent Series A, the team is scaling the product from thousands of users to hundreds of thousands while holding a high bar on reliability and speed.​ About the role Flow is hiring a Software Engineer with an infrastructure focus to build and scale the core platform behind Flow. You will own services and infrastructure that let “agentic systems engineers” and product teams rely on Flow in their day-to-day work.​ You will join a small, senior, high-ownership team that values speed, ownership, and strong fundamentals: ship v1s quickly, learn, and iterate.​ What you’ll do Design, build, and operate backend services and platform primitives that support complex engineering workflows and collaboration at scale. Scale Flow from thousands of users to hundreds of thousands, improving performance, reliability, observability, and security across the stack. Own and evolve CI/CD pipelines, test infrastructure, and internal tooling so the team can ship quickly and