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
You’ll own high-intent technical deals, shape the sales motion from first principles, and have a path to building or leading part of the revenue org as we scale
What they're looking for
- 5+ years carrying a closing quota in B2B SaaS, infrastructure, security, developer tools, or AI, with a track record of closing net-new mid-market or enterprise deals at $100k+ ACV
- Energised by founder-style selling: sourcing strategic accounts, mapping buying committees, creating urgency, and closing without a fully built machine around you
- Technically literate - can hold conversations about complex technical products and have credibility with technical buyers
- Can operate effectively without established playbooks or processes
- Extensive cold calling experience
- Readiness to travel
More about this role
TL;DR: We’re looking for an Account Executive to build pipeline, close six-figure deals, and help create White Circle’s sales playbook from the ground up. You’ll own the full sales cycle end to end: open doors, navigate technical buying committees, create urgency, close the deal, and help shape the revenue organization as we scale.
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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