White Circle is the control layer for AI in production. We help companies test, protect, observe, and improve every AI interaction — from blocking unsafe inputs and preventing jailbreaks to analyzing user behavior and optimizing model performance. Backed by Runa Capital.
About the role
Own White Circle's developer relations: how engineers and AI researchers discover, understand, and adopt what we build Lead technical launches for open-source releases and developer tools, like our Halo framework, from narrative and demos through to launch day Found on 1752vc Careers, the job board for startup and VC roles.
More about this role
TL;DR: We're hiring a DevRel Lead to make White Circle the AI safety platform engineers and researchers actually want to build with. You'll own how we show up to technical audiences: shipping technical content, running hackathons and meetups, launching open-source tools like Halo, and building partnerships across the AI ecosystem.
White Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. At the core of our platform are policies – simple natural-language rules that define what an AI model should and shouldn’t do. We automatically test, enforce, and continuously improve these policies at scale.
We’ve recently raised our Series A funding round, taking our total funding to $70M. Our investors include top funds, founders, and senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry, and others
We process over one hundred million API calls every month
We fine-tune and train our own LLMs so they run faster and cheaper than any open or proprietary model
We’re a small, highly focused team. If you want to work deeply on hard problems, see your work ship to production quickly, and influence how AI safety is...
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