SubImage (YC W25) is hiring a Founding Engineer in San Francisco for $170K-$230K equity. The startup builds an Open-Core Security Graph to help security teams find and fix vulnerabilities at scale.

Founded by ex-Lyft engineers, SubImage is built on Cartography—a CNCF project adopted by over 70 companies including Fortune 100 firms. As a seed-stage company with a 4-person team, they seek an engineer to tackle complex security challenges like vulnerability triage, attack path analysis, and real-time environment mapping.

The role requires 3+ years at high-growth companies, distributed systems experience, and SF Bay Area presence for in-office work. The stack uses Python, Neo4j, FastAPI, and Svelte with WebGL rendering. Equity ranges from 0.50% to 1.00%.