Senior Product Designer

Explicitly mentions vibe coding and AI-assisted prototyping; expects fast prototyping with Figma + AI/vibe-coding tools. About the Role Senior Product Designer at fal responsible for owning end-to-end product design across web and true mobile experiences, building and maintaining design systems, and rapidly prototyping (including AI-assisted/vibe-coding approaches) to help ship generative-media features in a high-velocity startup. Job Description Role fal is hiring a Senior Product Designer to own end-to-end product design for features across web and dedicated mobile experiences. You will move quickly while maintaining visual craft and consistency, drive design system adoption, prototype rapidly (including AI-assisted/vibe-coding approaches), and partner closely with engineering and product to ship and iterate. Key Responsibilities Own product design from problem framing through flows, UI states, edge cases, handoff, QA, and iteration. Design across web and true mobile experiences (dedicated mobile screens and mobile patterns, not just responsive web). Build and maintain the design system (components, tokens, variants, patterns, docs) and drive adoption with engineering. Prototype fast using Figma and AI/vibe-coding tools to validate direction. Partner tightly with engineering and product to ship quickly and iterate post-launch using metrics and customer feedback. Run lightweight user research and scrappy usability testing (customer calls, quick validation). Produce lightweight go-to-market/design artifacts when needed (Google Slides decks, simple graphic/brand assets). Requirements Must have Strong product UI/visual craft with a portfolio of shipped work. Experience designing both web and native mobile product experiences (understands mobile UI patterns, navigation paradigms, constraints, and edge cases). Solid experience with design systems (components, tokens, variants, documentation) and working with engineering for adoption. Comfortable owning features end-to-end in a high-velocity startup (handoff, QA, iteration). Prototyping mindset that includes AI-assisted / vibe-coding prototyping; code-based prototyping is a plus. Ability to run scrappy user research/testing and iterate from customer feedback. Accessibility and responsive fundamentals, plus the ability to design true mobile experiences. Strong cross-functional communication and ability to define success metrics with PM/Eng. Nice to have Familiarity with generative media, LLMs, or image/video model UX patterns (prompts, parameters, evaluation, latency/quality tradeoffs). Front-end literacy (React, TypeScript, CSS) and/or Storybook-style component workflows. Willingness to support light GTM/design needs (pitch decks, simple marketing assets). Any graphic or brand design experience or interest. Compensation & Location Location: Downtown San Francisco. Fal offers visa sponsorship and relocation assistance to San Francisco. Figma React TypeScript CSS Storybook Google Slides LLMs Image models Video models AI-assisted prototyping (vibe coding) What fal Provides Competitive salary and equity Health, dental, and vision insurance (US) Visa sponsorship and relocation assistance Regular team events and offsites Learning and growth opportunities Skills Product UI/Visual Design Mobile Design Design Systems Prototyping User Research Accessibility Cross-functional Communication End-to-end Feature Ownership Iteration and Post-launch Optimization Graphic/Brand Design #J-18808-Ljbffr