Product Engineer

About Black Forest Labs

We’re the team behind Latent Diffusion, Stable Diffusion, and FLUX—foundational technologies that changed how the world creates images and video.

We’re creating the generative models that power how people make images and video—tools used by millions of creators, developers, and businesses worldwide.

Our FLUX models are among the most advanced in the world, and we’re just getting started.

Headquartered in Freiburg, Germany with a growing presence in San Francisco, we’re scaling fast while staying true to what makes us different: research excellence, open science, and building technology that expands human creativity.

Why This Role

We're looking for a Product Engineer to build the experiences people meet our models through.

You'll work alongside our researchers and infrastructure engineers to turn frontier model capabilities into interfaces that feel fast, considered, and obvious to use.

You'll own the surfaces developers and creatives touch first:

Day to day, that means:

What You’ll Work On

Most of our code is written by agents. The job is deciding what to build, decomposing it so agents can execute well, and reviewing what comes back with enough judgment to catch what's subtly wrong.

We care far more about how quickly you can go from idea to working, reviewed, shipped product than about which frameworks you've memorized.

This is a frontend-leaning full-stack role. You'll live in the frontend and own it, but you'll be comfortable following a feature into the API layer, the database, and a migration without waiting for someone else.

What We’re Looking For

Nice to have:

How we interview:

Expect to build something live, on your own machine, with whatever tooling you normally use.

Using coding agents is encouraged rather than merely tolerated - we want to see how you actually work, not how you perform without your tools.

The process is four conversations plus a half-day onsite in Freiburg, and we cover travel.

We'll share the full process upfront.