TLDR: We’re looking for a Recruiter to help us build one of the strongest teams in AI safety. You’ll own full-cycle hiring across engineering, AI research, product, and business roles, partnering with Head of HR and hiring managers to attract exceptional talent across the US and Europe.

About us

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 raised $11M from 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 actually built – you’re the one we need.

You will:

• Own full-cycle recruitment from sourcing through offer acceptance

• Source and engage exceptional talent across the US and European markets

• Build pipelines for highly technical roles, including AI/ML Engineers, Research Engineers and Product Engineers

• Develop a deep understanding of AI, machine learning, LLMs, AI safety, infrastructure, and emerging technologies to effectively assess candidates and communicate opportunities.

• Conduct structured interviews and evaluate candidates for technical capability, problem-solving ability, and cultural alignment

• Drive an exceptional candidate experience throughout the hiring process

• Track recruiting performance and continuously improve hiring processes, tooling, and workflows

• Act as a trusted talent advisor to hiring managers and leadership

You’ll fit right in if you:

• Have 2+ years of full-cycle recruiting experience, ideally in high-growth technology companies or startups

• Have experience hiring across the US and European markets

• Have a strong track record of closing technical and engineering roles

• Understand the fundamentals of software engineering, cloud infrastructure, machine learning, and modern AI systems

• Can confidently discuss concepts such as LLMs, AI safety, model training, inference, evaluation, agent systems, and machine learning workflows

• Are highly proactive and resourceful when sourcing difficult-to-find talent

• Know how to build relationships with passive candidates and manage complex hiring processes

• Have excellent communication and stakeholder management skills

• Are comfortable operating in a fast-moving environment with ambiguity and evolving priorities

• Speak and write fluent English (C1+)

A big plus:

• Experience recruiting AI Engineers, Research Engineers, Applied Scientists, or AI Researchers

• Experience hiring for AI startups, research organisations, or developer-focused companies

• Familiarity with modern sourcing tools, recruiting automation, and AI-powered recruiting workflows

Why White Circle

• Salary of $40,000 to $60,000 + equity

• Paid time off in line with your local regulations, no matter where you work from

• All the hardware, tools, and services you need

• Covered subscriptions for AI agents

• Team off-sites twice a year — we've recently been to the Alps and Saint-Tropez.

How we hire

1. Introductory call with Head of HR (25 min)

2. Take-home test

3. Final conversation with our CEO & Head of Ops (45 min)

Please submit your application in English - it’s our company language so you’ll be speaking lots of it if you join