Backend Engineer, Applied AI

A Note From the Founder

Citizen is a pipeline before it is an app. Signal comes in from every major American city, gets detected, verified, written, and delivered to the right people in seconds, and the whole thing has to hold when a million people open the app at once because something is happening. For years that took a large backend team. Now I build with agents and so do the engineers here, and a small group working that way out-ships teams five times the size. I want a backend engineer who is exceptional at the craft, runs agents like a second pair of hands, and treats a wrong alert as a bug with consequences. If that is you, come build the real-time system for the next chapter, next to me.

About

Citizen is the #1 safety app in the U.S. Every day, thousands of videos are captured live at the scene of real incidents and distributed in real time to people in every major American city. No other consumer product has this. It is a live network, a newsroom, and a safety tool at once, and it is growing again.

Underneath it is a real-time system: ingest from 911 radio, CAD feeds, user video, and partner feeds; detection, verification, and geolocation; distribution to millions of devices in seconds; the live video infrastructure that carries the scene to the app; and the enterprise products and API that deliver the same intelligence to cities,