How to apply for Product Designer

About White Circle

White Circle builds a safety, reliability, and optimization layer for AI systems. The company processes over 100 million API calls per month and fine-tunes its own LLMs. It recently raised a Series A, bringing total funding to $70M, with investors from OpenAI, Anthropic, DeepMind, and others.

About the role

You will own product design end to end for interfaces used by engineering and research teams to test, protect, observe, and improve AI interactions. The work includes evolving the Figma design system, improving existing screens, creating new flows, and prototyping interactions. You will work closely with product, engineering, and research to ship quickly.

A typical day

A typical day might involve reviewing current screens, updating Figma components, and designing a new flow for an upcoming feature. You would meet with product and engineering to align on scope, then prototype an interaction and iterate based on feedback. Because the team is small, you would likely ship work to production quickly and see how it performs with real users.

Who White Circle is looking for

• Has experience designing complex, data-heavy, or workflow-driven software for technical users such as engineers or researchers.
• Can maintain and scale a Figma design system, not just create one-off screens.
• Is comfortable prototyping interactions and iterating quickly with product and engineering.
• Can turn ambiguous AI safety workflows into simple, intuitive interfaces without oversimplifying the underlying complexity.

Tips for this application

• In your portfolio, show at least one project where you simplified a complex technical workflow for an engineering or research audience. Explain the before and after.
• Include a link to a Figma design system you have built or maintained. State your specific role in building or evolving it.
• Reference White Circle's core concept: policies are natural-language rules that define what an AI model should and shouldn't do. Show that you understand the product's domain.
• Mention the scale: over 100 million API calls per month. Explain how you would design for performance, clarity, and reliability at that scale.
• Keep your application direct. White Circle describes itself as a small, highly focused team. Avoid long, generic cover letters.

What to cover in your cover letter

['Your experience turning complex AI or developer workflows into simple interfaces.', 'A concrete example of evolving a Figma design system to stay consistent and scalable.', 'How you collaborate with product, engineering, and research to ship quickly.', 'Why you want to work on AI safety specifically, not just any product design role.']

Research before applying

• Read White Circle's website, especially how it describes policies, testing, enforcement, and continuous improvement.
• Look up the backgrounds of the investors listed: OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry. Understand why they invested in AI safety infrastructure.
• Research common AI safety concerns such as model behavior, policy enforcement, and evaluation. Know the basics before the interview.
• Check if White Circle has published any product screenshots, demos, or documentation. If not, prepare questions about the current product and design system.

Likely interview topics

Based on the job description, expect questions about:

• Walk through a time you simplified a complex technical workflow. What trade-offs did you make?
• How do you decide when to add a new component to a design system versus when to design a one-off screen?
• How would you design an interface for a user who needs to test and enforce natural-language policies on an AI model?
• Describe your process for prototyping an interaction and validating it with engineers or researchers.
• How do you work with engineering when shipping fast and the design system is still evolving?

Common mistakes to avoid

• Submitting a portfolio with only consumer or marketing design. This role is for technical, workflow-driven product design.
• Claiming to have built a design system without being able to explain your specific contribution or how it scaled.
• Writing a generic cover letter that does not mention AI safety, policies, or White Circle's product. The company is small and focused; generic applications are easy to spot.