Senior Product Designer

Co–Star • San Francisco, CA

7d

About The Position

At Co–Star, the materials are a 4,000-year-old system of astrology, planetary data from NASA, and a corpus written by astrologers and poets. The design problem is how to make all of that legible, intuitive, and fun on a phone. We’re hiring a Senior Product Designer to work on Co–Star’s core mobile product and new experiments. You’ll move between product architecture, interaction design, prototyping, and visual design. Ideas here rarely arrive as polished specs. You’ll help determine what we should make, how it should work, and what form it should take.

Requirements

• You've spent the last decade designing software people love to use.
• You're comfortable moving between interaction design, visual design, and product thinking.
• You enjoy working closely with engineers.
• You agree that good work often emerges out of many rounds of iteration. You explore wildly, always ready to kill your darlings, and rework ideas until something clicks and feels correct.
• You'd rather prototype than make a presentation.
• Work > ego

Responsibilities

• Own major product surfaces end-to-end: concept, flows, interaction, visual polish, ship
• Invent interaction paradigms for things that haven't existed before and make those new paradigms legible and fun
• Use research, experimentation, analytics, and user feedback to understand what people need and where products can improve.
• Prototype constantly, in Figma and in code — we expect tools like Claude Code and Cursor to be part of your workflow
• Partner directly with engineering to refine interactions, iterate quickly, and ship high-quality work.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed