This is a founding-level, high-ownership position sitting at the intersection of design and engineering. You’ll be the sole bar-raiser for frontend UX across a fast-moving, early-stage B2B SaaS company building an AI-powered pricing optimization platform. Your work will ensure that human-authored and agent-written UIs feel like one coherent, polished product — covering everything from the design system and component library to conversational surfaces on platforms like Slack and Microsoft Teams.
You’ll work shoulder-to-shoulder with the founders and a small, tight-knit engineering team, with enormous scope and direct influence over the product’s quality and direction from day one.
What You’ll Do
•
Own the design system end-to-end: design tokens, a shadcn/ui-based component library, and Tailwind CSS conventions applied consistently across the product suite.
•
Define and enforce frontend patterns using React Query, React Hook Form, and Zod — ensuring agent-written PRs land consistent and polished by default.
•
Shape conversational agent interfaces for constrained platforms (Slack Block Kit, Microsoft Teams Adaptive Cards), bringing the same visual and interaction quality as the core product.
•
Codify accessibility standards — implement WCAG contrast rules and guardrails directly into brand guidelines and the codebase.
•
Maintain and improve frontend tooling and quality: Biome configuration, Playwright E2E test coverage, and frontend performance optimization.
•
Translate design intent into code: reusable component abstractions, motion (e.g., Framer Motion, Radix transitions), and tactile micro-interactions.
•
Partner cross-functionally with founders and engineers to keep the frontend a thin, polished layer over the API.
•
Integrate AI coding tools (e.g., Claude Code, Cursor) and custom lint/agent rules into the frontend workflow.
What We’re Looking For
Must-haves (dealbreakers):
•
5+ years building product interfaces, with a portfolio of shipped features demonstrating high polish.
•
Primary ownership of a production design system or component library (public repo, portfolio, or detailed walkthrough required).
•
Deep expertise in React, strict TypeScript, Tailwind CSS, and component primitives (shadcn/ui, Radix UI).
•
Authorized to work in the US — visa sponsorship is not available.
Required skills & experience:
•
Strong systems thinking: ability to translate visual decisions into tokens, component abstractions, and lint rules.
•
Experience enforcing WCAG accessibility standards and integrating them into a living codebase.
•
Hands-on experience with AI coding tools in production workflows (e.g., Claude Code, Cursor).
•
Comfort acting as the sole frontend UX standard-setter across a company — you raise the bar, you own it.
Nice to have:
•
Experience building non-standard AI interfaces: streaming responses, generative canvases, human-in-the-loop views.
•
Experience designing and shipping conversational interfaces or chatbots for B2B end-users.
•
Familiarity with Slack Block Kit, Microsoft Teams Adaptive Cards, or CLI design patterns for constrained UI spaces.
•
Experience with animation and UI state transition tooling (Framer Motion, Radix) to enhance perceived speed and polish.
Compensation & Benefits
•
Salary: $180,000 – $220,000 USD annually
•
Founding team equity commensurate with early-stage, high-ownership role
•
Direct impact on product direction and technical culture from day one
Location
This role is on-site in San Francisco, CA. The team works together in person; remote-only candidates are not a fit for this position.