Senior Product Designer, UI/UX

HumanitApp; Northern (KY); Hybrid; USD 110,000 - 152,000; Full time

Job summary

HumanitApp is seeking senior product designers and design-minded engineers to shape how AI models design for the web and games. You will build high-quality prototypes and collaborate with AI researchers to define great UI/UX and productive patterns.

This is a full-time, 40 hours per week position. The role is staffed through Cincinnatus LLC as a W-2 employment, with the potential to be placed at an AI lab as part of the extended workforce.

Qualifications

• Senior product designers and design-minded engineers with exceptional taste to help shape how AI models design and build for the web and for games.
• Ability to prototype in code or with AI tools and explain why a design works better than another.

Responsibilities

• Partner with AI researchers to identify UI/UX patterns and turn them into clear principles and rubrics.
• Build polished, interactive web prototypes in code or with AI-native tools.
• Review AI-generated interfaces and give actionable feedback on layout, hierarchy, interaction, motion and polish.
• Explore a wide range of visual styles, frameworks and animation approaches.
• Collaborate with designers and researchers to maintain standards and raise quality.

Skills

UI/UX design

Prototyping

Design systems

Code prototyping

Tools

Cursor

v0

Lovable

Bolt

Job description

Help a leading AI lab define what great design looks like, and build the prototypes that prove it.

1. Overview

A leading AI lab is looking for senior product designers and design-minded engineers with exceptional taste to help shape how its AI models design and build for the web and for games. You'll work directly with the lab's researchers to define what "great" looks like in UI and UX, and you'll build high-quality prototypes that show it. If you care deeply about great interfaces, like to prototype in code or with AI tools, and can explain why one design works better than another, this role is for you. This is a full-time commitment of 40 hours per week.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI lab as part of their extended workforce.

2. Key Responsibilities

• Partner with AI researchers to identify best-in-class UI and UX patterns, and turn them into clear principles and rubrics that define what great design looks like.
• Build polished, interactive web prototypes, in code or with AI-native tools such as Cursor, v0, Lovable or Bolt, that showcase strong and diverse design patterns across many product categories.
• Review AI-generated interfaces and prototypes, and give specific, actionable written feedback on layout, hierarchy, interaction, motion and visual polish.
• Explore a wide range of visual styles, frameworks and animation approaches, from focused productivity tools to playful consumer apps and games.
• Collaborate with other designers and researchers to keep standards consistent and keep raising the quality bar.

Nice to have: Fluency with motion and animation (Framer Motion, GSAP, Rive, Lottie, After Effects) or 3D and WebGL, and game design experience in 2D or 3D. You don't need all of these to apply.

About Cincinnatus LLC:

Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

Equal Employment Opportunity:

Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

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Compensation context

The listing states $80 - $110 / hour. Confirm the final rate, workload, and payment terms during the official application process.

• Ability to engage reliably for 40 hours/week during weekdays.

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How should I compare the listed pay?

The listing states $80 - $110 / hour. Confirm the final rate, workload, and payment terms during the official application process.

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