Founding Design Engineer

About the Role

This is a founding-level frontend role at a seed-stage AI SaaS startup building an intelligent pricing platform for B2B companies. You will own the design system end to end, setting the standards that keep everything the team ships, whether human-written or agent-written, feeling like one coherent product. As the sole bar-raiser for frontend UX across a small, fast-moving team, your work will directly shape the product's quality and identity.

What You'll Do

• Own and evolve the design token system, shadcn/ui-based component library, and Tailwind conventions across the full product suite.

• Define and enforce consistent patterns using React Query, React Hook Form, and Zod so that agent-written pull requests land coherently by default.

• Audit and maintain frontend tooling and quality, including Biome configuration, Playwright end-to-end coverage, and frontend performance.

• Enforce WCAG accessibility standards and integrate brand guidelines directly into the codebase.

• Collaborate with AI coding tools in production workflows to review, guide, and uplift agent-generated UI contributions.

• Build and iterate on conversational and streaming AI interface patterns suited to B