Founding Engineer

Hiring: Founding Engineer | AI Security Startup San Francisco — Onsite Visa sponsorship & transfers supported Seed stage | Top-tier VC backed A fast-growing AI security startup is building infrastructure to help enterprises secure and control increasingly powerful AI systems. As companies deploy AI across their organizations, they often lack visibility into what models and agents are running, what systems they’re accessing, and where the risks are. This team is building the security layer for that future. The company is only ~3 months old, already works with marquee enterprise customers, and is backed by leading venture firms and operators from some of the world’s most successful technology companies. They’re hiring their first few Founding Engineers. You’ll work directly with the founding team and ship production features to Fortune 500 customers within weeks. What you’ll work on: • High-volume infrastructure ingesting enterprise AI telemetry • Real-time detection and policy enforcement for AI agents • Small models making low-latency behavioral judgments • Red-teaming systems for prompt injection, tool misuse, data exfiltration, and agent failures Who they’re looking for: • 0–5 years of experience — exceptional new grads welcome • Strong backend, systems, infrastructure, or distributed systems fundamentals • Experience in high engineering-bar environments • Comfortable with high ownership, minimal process, and direct customer interaction Bonus points for competitive programming, applied ML, security/red-teaming, quant experience, forward-deployed engineering, or Go/Rust. If you’re an exceptional engineer who wants to join at the earliest stage and build critical infrastructure for the AI era, I’d love to connect.