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.
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.
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
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
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 to Saint-Tropez
Introductory call with Head of HR (25 min)
Take-home test
Final conversation with our CEO & Head of Ops (45 min)
Please submit your application in English.
Skills Required
- 2+ years of full-cycle recruiting experience
- Experience hiring across US and European markets
- Proven track record closing technical and engineering roles
- Understand fundamentals of software engineering, cloud infrastructure, and machine learning
- Ability to confidently discuss LLMs, AI safety, model training, inference, evaluation, and agent systems
- Highly proactive and resourceful in sourcing difficult-to-find talent
- Experience building relationships with passive candidates and managing complex hiring processes
- Excellent communication and stakeholder management skills
- Comfortable operating in a fast-moving environment with ambiguity
- Fluent English (C1+)
- Experience recruiting AI Engineers, Research Engineers, Applied Scientists, or AI Researchers
- Familiarity with modern sourcing tools, recruiting automation, and AI-powered recruiting workflows
- Experience hiring for AI startups, research organisations, or developer-focused companies
What We Do
White Circle is an enterprise AI control platform specializing in automated vulnerability detection and protection for AI systems. The company provides a unified system for testing, monitoring, and safeguarding AI applications in real time, focusing on blocking unsafe inputs, preventing jailbreaks, and optimizing model performance. Its mission is to secure AI systems and ensure they remain safe and controllable for businesses worldwide.







