$80–110/hr
The role in one line
A Senior Product Designer builds prototypes and sets design standards for AI-generated interfaces and web applications.
Written by Training Turk from the public listing; it may be incomplete or out of date. Read the full posting on Mercor.
What you would do
- Partner with AI researchers to establish design principles and quality rubrics across product categories
- Build high-fidelity web prototypes in code or AI-native tools to showcase strong design patterns and interactions
- Provide detailed written feedback on AI-generated interfaces evaluating hierarchy, interaction, animation, and visual execution
- Explore and document diverse visual styles, interaction frameworks, and animation approaches across multiple product domains
- Collaborate with design peers to maintain consistency and systematically improve design quality standards
Who they are looking for
- 7+ years of product design, design lead, or design engineering experience at top design-driven companies like Stripe, Figma, Airbnb, or leading agencies
- Prototyping expertise using code (HTML, CSS, JavaScript, React, Tailwind) or AI platforms like Cursor, v0, Lovable, Bolt, Framer
- Comprehensive mastery of user-centered design principles, interaction design workflows, and rapid prototyping approaches
- Senior-level design judgment with ability to set direction and articulate clear reasoning for design decisions
- Dedicated engagement: 40 hours weekly with clear written communication and design critique abilities
What the interview is likely to probe
1.Design principle articulation
Researchers need designers who can distill vague concepts like 'great design' into concrete, measurable principles; this shows judgment and communication ability.
Expect something like: “Design principles for SaaS, gaming, e-commerce, and productivity apps must work together. How do you develop unified principles that apply across categories without becoming too abstract?”
2.Prototyping speed and tool selection
This role alternates between code-based prototypes and AI-native tools; designers must choose the right tool for each situation and execute quickly.
Expect something like: “Demonstrate 8 form validation patterns by Friday. Some involve complex micro-interactions, others are straightforward. Do you use code, AI tools, or mix? Explain your approach.”
3.Evaluating AI-generated design
Unlike traditional design critique, evaluating AI output requires specific knowledge of what AI systems typically get wrong about hierarchy, interaction, and feasibility.
Expect something like: “An AI checkout mockup looks polished but uses 7 UI patterns from 3 design systems. How would you structure feedback to help researchers understand the core problem?”
4.Design judgment in ambiguous contexts
Senior designers must defend design choices when multiple approaches seem viable; interviews probe whether you have real judgment or just follow trends.
Expect something like: “Two productivity app directions: one minimalist with hidden features, one with visible shortcuts. Both work in user research. How do you choose which to develop further?”
5.Motion and animation expertise
Animation can make or break interface quality; senior designers must understand performance, purpose, and when animation enhances versus distracts.
Expect something like: “A data dashboard design has smooth animations on every interaction but has tight performance budgets. Which animations keep, remove, or redesign?”
6.Visual style exploration and consistency
Designers must explore diverse styles while maintaining coherence; this tests ability to balance innovation with consistency.
Expect something like: “Test whether serif vs. sans-serif or flat vs. skeuomorphic affects AI interface trust. Design consistent explorations across styles without creating disconnected systems.”
Exercise you may get
Given 3 product categories and 2 interaction scenarios per category, create 6 coded web prototypes or AI-tool-based mockups demonstrating different design approaches. Write design briefs for each explaining your choices and rationale.
How to prepare
- Study recent design work from companies like Stripe, Figma, Linear, Notion to understand current senior-level standards in interaction, animation, and hierarchy
- Practice building web prototypes quickly in code (React/Tailwind) and familiarize yourself with AI-native tools like Cursor, v0, and Lovable
- Review animation libraries (Framer Motion, GSAP, Rive) and consider how motion affects user perception of interface quality and AI capability
- Research how AI systems generate interfaces and what design flaws are common in AI-generated output (proportion, readability, interaction patterns)
Facts
- Pay
- $80–110/hr
- Commitment
- full-time
- Hours
- 40 per week
- Work arrangement
- remote · United States
- Eligible locations
- USA
- Domain
- Arts & Design
- Posted
- 9/25/2026
- Open slots
- 40