Design Engineer

• 6+ years of experience in product design, frontend engineering, or design engineering, with a portfolio showing both design and shipped code
• Strong frontend skills: React, TypeScript, modern CSS (Flexbox, Grid, custom properties, container queries)
• Experience building and maintaining design systems in code, e.g. design tokens, component APIs, Storybook or similar
• Deep Figma knowledge: Auto Layout, Components, Variants, Variables, Prototyping
• Experience with motion and animation in code (Framer Motion / Motion, CSS transitions, or similar)
• A track record of designing clear, functional web interfaces, ideally for technical or data-heavy products (dashboards, developer tools, B2B SaaS)
• Solid grasp of accessibility (WCAG, keyboard navigation, ARIA) and responsive design
• Comfort working in a real codebase: Git, code review, working alongside engineers
• You use AI tools daily in your workflow (Cursor, Claude Code, v0, or similar) and know how to get production-quality results out of them, * Experience with Tailwind CSS, Radix UI / shadcn/ui, or other headless component libraries
• Next.js or Vite experience
• Data visualization (D3, Recharts, visx)
• Figma plugin or Figma-to-code pipeline experience (Tokens Studio, Style Dictionary, Code Connect)
• Interest in AI safety, LLMs, or developer tooling

• Design and build product interfaces end to end, from Figma exploration to production-ready React code
• Own our design system in both Figma and code: tokens, components, variants, documentation. Keep the two in sync
• Build and polish UI components with attention to states, edge cases, accessibility, and performance
• Prototype interactions and new flows in code to test ideas with real data before we commit to them
• Craft motion and micro-interactions that make complex workflows feel clear and responsive
• Raise the quality bar of the product: spot UI inconsistencies, fix them yourself, ship
• Work directly with product, engineering, and research. Expect fast iterations and full ownership, * Competitive compensation package, including equity
• Flexible time off
• Health insurance
• Mental health support, including coverage for therapy when you need it
• 401(k) retirement plan
• Learning and development support for courses, conferences, and opportunities to grow your skills
• All the hardware, subscriptions, tools, and services you need
• Team off-sites twice a year: we’ve recently been to the Alps, Saint-Tropez, and Marbella

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 actually built - you’re the one we need