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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: Playground - where most developers and creatives experience and test our models Dashboard - where developers manage keys, usage, and billing Launch demos for new FLUX models, often built against checkpoints nobody outside the lab has seen Reference implementations and starter apps that other developers build on top of Day to day, that means: Shipping high-quality web applications end to end, fast Turning research capabilities into product - first prototype through to production Owning frontend architecture and the practices the rest of the engineering team builds on Setting the visual bar - the shared components, interaction detail, and polish that everything else gets held against Designing for genuinely hard interaction problems: long-running generations, iterative editing, large media payloads, real-time inference Driving performance for high-volume media processing and latency that users actually feel Working with research, infra, growth, and design to decide what's worth building at all 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 A track record of shipping real products that real users depend on, and the war stories to go with it Fluency driving coding agents on non-trivial existing codebases, not just greenfield demos — plus the judgment to review generated code critically, catching the plausible-but-wrong, the insecure, and the unmaintainable A clear view on where agents should not be trusted, and why Visual craft — your interfaces look considered, and you can tell the difference between shipped-and-fine and actually good. Nice to have: Experience with React, TypeScript, and Next.js (we use them - we just don't think they're the hard part) A track record of building developer tools or creative applications Previous experience building interfaces on top of generative models, and working knowledge of AI/ML concepts Instrumentation and experimentation experience: analytics, A/B testing, activation funnels Contributions to open-source projects How we interview: Expect to build something live, on your own machine, with whatever tooling you no

Product Engineer

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Product Engineer

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