Founding Designer

Key Responsibilities

Own Design End-to-End

• Lead design for key product areas from early discovery through launch
• Translate messy real-world workflows into clear, intuitive product flows
• Produce high-quality UI and interaction design for core surfaces

Build a High-Trust, High-Performance Product Experience

• Design experiences that feel fast, precise, and dependable
• Create interfaces that support accuracy, auditability, and confidence
• Design for power users who live in tools all day (bankers, investors, and deal teams)

Develop Mosaic’s Design System & Visual Language

• Establish foundational components, patterns, and UX principles
• Drive consistency across the product while keeping velocity high
• Raise the bar on craft, clarity, and usability across everything we ship

Partner Cross-Functionally and Influence the Roadmap

• Collaborate closely with product, engineering, and GTM teams
• Bring customer insight into product decisions and prioritization
• Use prototypes to explore directions, align stakeholders, and move quickly

Be a Builder in a Fast-Growing Startup

• Operate with high autonomy and ownership in an unstructured environment
• Move quickly and iteratively—shipping, learning, refining
• Help define how design works at Mosaic: process, tools, rituals, and culture

Who We’re Looking For

Strong Product Designer with Founder-Level Ownership

• 4+ years of product design experience (or equivalent craft + portfolio)
• Excited to be hands-on, scrappy, and deeply embedded in the product

Systems + UX Thinking

• Strong instincts for information architecture, complex workflows, and usability
• Ability to design products that support expert users and dense concepts

Exceptional Craft

• High attention to detail across UI, interaction, typography, layout, and polish
• Ability to make complex software feel simple and calm

Collaborative and Clear Communicator

• Comfortable working directly with engineers and shipping together
• Ability to explain decisions, iterate with feedback, and build alignment

Customer-Obsessed Product Mindset

• Loves talking to users, watching workflows, and identifying what matters
• Can synthesize feedback into sharp product insights and design direction

Bonus (Not Required)

• Experience designing for fintech, B2B SaaS, or workflow-heavy products
• Familiarity with spreadsheet-like UI patterns and analytical tooling
• Comfort designing for AI-driven workflows (extraction, review, agents, automation)
• Some front-end fluency (you can speak dev, understand constraints, and move fast)