Founding Product Designer

Wintermeyer Ventures; San Francisco (CA); On-site; USD 200,000 - 230,000; Full time

Job summary

Wintermeyer Ventures is seeking its first full-time designer for an early-stage AI company. You will shape how users collaborate with AI agents within familiar tools, partnering with the founding team to craft a transparent, trust-worthy product experience.

You will craft workflows, build design systems, and prototype in code to ship polished features that empower business users to work with AI in their daily tools.

Qualifications

• 2-10 years of experience in product, UX, or software design.
• Portfolio demonstrating strong visual taste and problem-solving for software.
• Experience owning product-design features from concept to launch.
• First-principles product thinking with ability to design novel workflows.
• Hands-on experience with AI coding tools and LLM coding agents, plus familiarity with HTML, CSS, JavaScript, and Figma.
• Design is the primary strength; ability to prototype in code.
• Experience designing B2B software is helpful.

Responsibilities

• Set the bar for visual craft, interaction design, and user-centered product design.
• Design workflows to help people work with AI agents.
• Develop concepts, explain tradeoffs, Incorporate feedback, and ship with the founding team.
• Prototype in code with AI tools and collaborate with engineering.
• Own features from problem to shipped interface.
• Build and maintain design systems, patterns, and documentation as product grows.

Skills

2-10 years experience

Portfolio

Own features from concept to launch

First-principles thinking

Prototype in code

AI coding tools

B2B software experience

Education

Tools

HTML

CSS

JavaScript

Figma

Job description

About the Role

Join an early-stage AI company as its first full-time designer, shaping how people collaborate with AI agents within the tools they already use. You will work directly with the founding team to define a new product experience, with a focus on trust, transparency, and user control.

What You'll Do

• Set the bar for visual craft, interaction design, and customer-focused product design.
• Design workflows that help people work effectively alongside AI agents.
• Develop concepts, explain design tradeoffs, incorporate feedback, and ship with the founding team.
• Prototype in code using AI coding tools and LLMs, partnering with engineering to deliver polished experiences.
• Own features from ambiguous problem through research and exploration to a shipped interface.
• Build and maintain design systems, reusable patterns, and documentation as the product grows.

What We're Looking For

• Two to ten years of experience in product, UX, or software design, including experience at an early-stage startup.
• A portfolio demonstrating strong visual taste, interaction craft, and rigorous problem-solving for software products.
• Experience owning product-design features from concept to launch.
• First-principles product thinking and comfort designing novel workflows with little precedent.
• Hands-on experience with AI coding tools and LLM coding agents; familiarity with HTML, CSS, JavaScript, and Figma.
• Design is your primary strength, with the ability to prototype in code.
• Experience designing B2B software or products for business users is helpful.

Compensation & Benefits

Base salary: $200,000 to $230,000 annually. Visa sponsorship is available.

Location

On-site in San Francisco, United States. Candidates must be able to work on-site five days per week or relocate.