---
title: 'Product Designer at Co–Star'
canonical: 'https://feeny.ai/job/product-designer-co-star-new-york-np1rwe1vs3xj'
type: 'job'
last_seen: '2026-09-09'
---

# Product Designer at Co–Star

- **Company:** Co–Star
- **Location:** New York, NY / San Francisco, CA
- **Work type:** hybrid
- **Posted:** 2026-07-24
- **Last confirmed live:** 2026-09-09
- **Apply:** https://job-boards.greenhouse.io/costar/jobs/6126531004

## Job description

Product Designer

In the 1960s, the Italian artist and inventor Bruno Munari was studying spontaneous forms: shapes that emerge from the interaction of material, function, and environment.

When Danese Milano commissioned him to design a lamp that was practical, durable, affordable, and easy to transport, Munari was reminded of the traditional rice paper lanterns he had encountered when traveling in Japan. But rice paper lanterns are fragile, hard to clean, and tend to yellow over time.

Looking for an industrial alternative, he discovered filanca—a synthetic stretch nylon used exclusively for women's stockings at the time.

Munari visited hosiery factories to test the material and see what forms it could take. "We do not make lamps, sir. Only stockings," one factory told him. Munari replied, "You'll see."

The result was the Falkland lamp: only a few centimeters thick when packaged, as tall as a human when hung, its spontaneous form emerging from the elasticity of the nylon and metal rings of different diameters inserted at regular intervals, enlarged by gravity when suspended from above.

Munari didn't begin with the form of a lamp. He began with the qualities it needed, then looked outside the conventions of lighting to find the right materials and methods. We're looking for a designer who works the same way: someone who studies the systems and materials at hand, then finds a way of putting them together that feels both unexpected and inevitable.

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 qualities we're designing for: astrology made accessible without asking anyone to learn a complex system, and a language that lets people share something intimate with their friends.

We're hiring a Senior Product Designer to continue cultivating those qualities across Co–Star and new experiments. You'll move between product architecture, interaction design, prototyping, and visual design. Ideas rarely arrive as polished specs. You'll help decide what we make next and how it works.

## What you'll do

- Design and build products from concept through launch.
- Work closely with design and engineering on new features and launches.
- You care about the details—typography, layout, motion, responsiveness, loading states, and performance—that make an experience great.
- Contribute visual assets for marketing.
- Prototype ideas quickly using Figma, Claude, Cursor, and whatever tools helps move the work forward.

You might be a fit if

- You have 2–5 years of experience designing and building for the web.
- You move fluidly across the full design process, from early concept through final production.
- You have an instinct for the details that make interfaces feel considered: type, spacing, motion, and how they all work together.
- You know enough HTML and CSS to work effectively with engineers—or to build parts of the experience yourself.
- You're comfortable using tools like Claude Code and Cursor as part of your workflow.
- You'd rather prototype than make a presentation.
- Work > ego

Logistics

- Full-time.
- Hybrid in San Francisco or New York.
- Compensation: $150,500–$185,000 + benefits.

To apply

A portfolio is required. We care much more about what you've made than where you've worked; if this sounds like you, apply even if you don't check every box.

## About Co–Star

## Company Overview
- **One-liner**: Co–Star is a hyper-personalized astrology app that uses NASA data and AI to generate real-time horoscopes, birth charts, and social compatibility tools.
- **Entity Type**: Private (raised $21M in total funding)
- **Headquarters**: New York City, New York, USA
- **Founded**: 2017
- **Founders**: Not publicly listed on provided sources

## Core Business
- **Primary industry/industries**: Astrology, Mobile Apps, Artificial Intelligence, Social Networking
- **Target customers**: B2C; primarily Millennial and Gen Z consumers interested in astrology, self-reflection, and social connection
- **Mission or purpose statement**: "We’re hacking tech, culture, and consciousness to build new practices for self-reflection and deep connection." [costarastrology.com](https://www.costarastrology.com/about/)

## Products & Services
- **Co–Star App**: A hyper-personalized, social astrology app available on iOS. It uses NASA data to generate full birth charts and real-time horoscopes based on the complete positions of the planets, moon, and houses—not just the sun sign. Features include daily horoscopes, compatibility analysis with friends, and social features like top friends for the day and asynchronous messaging. [costarastrology.com](https://www.costarastrology.com/)
- **Email Horoscopes**: Users can sign up to receive daily horoscopes via email. [costarastrology.com](https://www.costarastrology.com/)
- **Natal Chart Tool**: Provides in-depth personality analysis based on the day, time, and place of birth, created in partnership with professional astrologers and AI. [costarastrology.com](https://www.costarastrology.com/natal-chart)

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metric**: Total funding of $21,000,000 raised from investors behind companies like Twitter, Discord, Snap, and Glossier. [greenhouse.io](https://job-boards.greenhouse.io/costar)
- **Notable Investors/Partners**: Backed by investors from companies like Glossier, Twitter, Discord, and Snap. [greenhouse.io](https://job-boards.greenhouse.io/costar) & [costarastrology.com](https://www.costarastrology.com/jobs)
- **Growth Signals**: Five years after launch, someone downloads Co–Star every 5 seconds. The app has been referenced by celebrities like Big Sean, Ariana Grande, and Kevin Durant. It has been Apple's "App of the Day" twice. [costarastrology.com](https://www.costarastrology.com/jobs)

## Competitive Advantages
- **Data Moat**: Uses NASA data and proprietary technology to generate accurate, real-time horoscopes based on the full birth chart (not just the sun sign), differentiating it from generic magazine horoscopes. [costarastrology.com](https://www.costarastrology.com/)
- **AI + Human Insight**: Combines state-of-the-art AI models like GPT-3 with insights from staff poets and professional astrologers to create "hyper-personalized" synthetic text. [costarastrology.com](https://www.costarastrology.com/jobs)
- **Strong Brand & Cultural Relevance**: Has built a distinctive, often-described-as brutally honest tone. The app is deeply integrated into pop culture, with high-profile celebrity endorsements and viral social sharing. [vanityfair.com](https://www.costarastrology.com/jobs)
- **Network Effects**: Social features (friend compatibility, messaging) create a sticky ecosystem that encourages daily engagement and organic growth.

## Strategic Focus
- **Building the Social Layer**: The company is actively building out social features like "top friends for the day," asynchronous messaging, and groups, developed in tandem with practicing group therapists to foster deeper connections. [greenhouse.io](https://job-boards.greenhouse.io/costar)
- **Scaling Reliability**: Focused on increasing app reliability as the user base grows. [greenhouse.io](https://job-boards.greenhouse.io/costar)
- **Developing New Models for Relationships**: Aiming to use technology and astrology to create new ways for humans to relate to themselves and each other. [costarastrology.com](https://www.costarastrology.com/jobs)

## Why Work Here
- **Culture**: Describes itself as "thoughtful, open and tight-knit." The culture emphasizes diversity, inclusion, and cross-functional collaboration—writers work directly with AI models, and designers collaborate with therapists. [costarastrology.com](https://www.costarastrology.com/jobs)
- **Remote/Hybrid Policy**: While based in NYC, the company is open to hiring remote candidates. However, many roles listed on Built In are described as "In-Office," suggesting a hybrid or in-person preference for some positions. [builtin.com](https://builtin.com/company/co-star-0)
- **Notable Perks**:
  - Fully covered $0 deductible healthcare (including therapy, vision, and dental)
  - 401(k) with 5% matching
  - Unlimited vacation + a 2-week company-wide recharge at the end of each year
  - 12 weeks of 100% paid parental leave
  - Equipment budget
  - In-house astrologer readings for all new employees [greenhouse.io](https://job-boards.greenhouse.io/costar)
- **Engineering Culture**: Engineers give presentations on communities they've been a part of. The company offers a $5,000 referral bonus for engineers, product managers, and data scientists. [costarastrology.com](https://www.costarastrology.com/jobs)
- **Hypothesis-Driven Experimentation**: The team uses data to inform decisions, ships MVPs fast, A/B tests everything, and interviews users to validate hypotheses. [costarastrology.com](https://www.costarastrology.com/jobs)

## Sources
1. [costarastrology.com - About Page](https://www.costarastrology.com/about/)
2. [costarastrology.com - Jobs Page](https://www.costarastrology.com/jobs)
3. [costarastrology.com - Homepage](https://www.costarastrology.com/)
4. [costarastrology.com - Natal Chart](https://www.costarastrology.com/natal-chart)
5. [greenhouse.io - Co–Star Careers](https://job-boards.greenhouse.io/costar)
6. [builtin.com - Co-Star Profile](https://builtin.com/company/co-star-0)

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