job summary: This is a rare opportunity for a technical operator who wants to own growth end-to-end. You'll work closely with product, design, and marketing, but your focus will be on building and shipping experiments that accelerate acquisition, activation, and retention. Think: building new onboarding flows, instrumenting funnels, hacking together scrappy tools, or running experiments that generate meaningful lift in weeks, not months. location: San Francisco, California job type: Permanent